GL inet AR750S-EXT - Wifi away and comes back

Hi all

I got a GL inet AR750S-EXT. It works now with the Wifi of the hotel.
I connect via 2.4Ghz to Wifi of Hotel and uns 5Gz to acces from other devices.
For LAN 10.168.8.x is set and hotel wifi use 192.168.x.y.

Very often Wifi of 5Gz dissapear and later appear again with latest beta .25.
Used before official version and there it comes not back from alone, I had to power off…wait until device is cold and start again. Maybe I got also an HW issue…

May you see something out of the looks, I would really appreciate.

thanks in advance

Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 0.000000] Linux version 4.9.120 (lancer@gl-inet) (gcc version 7.3.0 (OpenWrt GCC 7.3.0 r7258-5eb055306f) ) #0 Thu Aug 16 07:51:15 2018
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.000000] bootconsole [early0] enabled
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.000000] CPU0 revision is: 00019750 (MIPS 74Kc)
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.000000] SoC: Qualcomm Atheros QCA956X ver 1 rev 0
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.000000] Determined physical RAM map:
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.000000] memory: 08000000 @ 00000000 (usable)
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.000000] Initrd not found or empty - disabling initrd
Wed Jun 19 16:42:49 2019 kern.warn kernel: [ 0.000000] Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes.
Wed Jun 19 16:42:49 2019 kern.warn kernel: [ 0.000000] Primary data cache 32kB, 4-way, VIPT, cache aliases, linesize 32 bytes
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.000000] Zone ranges:
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.000000] Normal [mem 0x0000000000000000-0x0000000007ffffff]
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.000000] Movable zone start for each node
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.000000] Early memory node ranges
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.000000] node 0: [mem 0x0000000000000000-0x0000000007ffffff]
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x0000000007ffffff]
Wed Jun 19 16:42:49 2019 kern.debug kernel: [ 0.000000] On node 0 totalpages: 32768
Wed Jun 19 16:42:49 2019 kern.debug kernel: [ 0.000000] free_area_init_node: node 0, pgdat 805237b4, node_mem_map 81000020
Wed Jun 19 16:42:49 2019 kern.debug kernel: [ 0.000000] Normal zone: 256 pages used for memmap
Wed Jun 19 16:42:49 2019 kern.debug kernel: [ 0.000000] Normal zone: 0 pages reserved
Wed Jun 19 16:42:49 2019 kern.debug kernel: [ 0.000000] Normal zone: 32768 pages, LIFO batch:7
Wed Jun 19 16:42:49 2019 kern.debug kernel: [ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=132768
Wed Jun 19 16:42:49 2019 kern.debug kernel: [ 0.000000] pcpu-alloc: [0] 0
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 32512
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 0.000000] Kernel command line: board=GL-AR750S console=ttyS0,115200 mtdparts=spi0.0:256k(u-boot)ro,64k(u-boot-env),64k(art)ro,2048k(kernel),13052k(reserved);spi0.1:-(ubi) rootfstype=squashfs noinitrd
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.000000] PID hash table entries: 512 (order: -1, 2048 bytes)
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.000000] Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.000000] Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.000000] Writing ErrCtl register=00000000
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.000000] Readback ErrCtl register=00000000
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.000000] Memory: 124164K/131072K available (3816K kernel code, 163K rwdata, 900K rodata, 232K init, 219K bss, 6908K reserved, 0K cma-reserved)
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.000000] NR_IRQS:51
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.000000] Clocks: CPU:775.000MHz, DDR:650.000MHz, AHB:258.333MHz, Ref:25.000MHz
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.000000] clocksource: MIPS: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 4932285024 ns
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.000007] sched_clock: 32 bits at 387MHz, resolution 2ns, wraps every 5541893118ns
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.008223] Calibrating delay loop… 385.84 BogoMIPS (lpj=1929216)
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.071045] pid_max: default: 32768 minimum: 301
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.076000] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.082975] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.092756] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.103160] futex hash table entries: 256 (order: -1, 3072 bytes)
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.110632] NET: Registered protocol family 16
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.116617] MIPS: machine is GL-AR750S
Wed Jun 19 16:42:49 2019 kern.warn kernel: [ 0.360128] registering PCI controller with io_map_base unset
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.382200] usbcore: registered new interface driver usbfs
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.388097] usbcore: registered new interface driver hub
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.393749] usbcore: registered new device driver usb
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.399271] i2c-gpio i2c-gpio.0: using pins 5 (SDA) and 21 (SCL)
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.405801] PCI host bridge to bus 0000:00
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.410156] pci_bus 0000:00: root bus resource [mem 0x12000000-0x13ffffff]
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.417394] pci_bus 0000:00: root bus resource [io 0x0001]
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.423273] pci_bus 0000:00: root bus resource [??? 0x00000000 flags 0x0]
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.430424] pci_bus 0000:00: No busn resource found for root bus, will use [bus 00-ff]
Wed Jun 19 16:42:49 2019 kern.debug kernel: [ 0.438804] pci 0000:00:00.0: [168c:0050] type 00 class 0x028000
Wed Jun 19 16:42:49 2019 kern.err kernel: [ 0.438813] pci 0000:00:00.0: invalid calibration data
Wed Jun 19 16:42:49 2019 kern.debug kernel: [ 0.444242] pci 0000:00:00.0: reg 0x10: [mem 0x00000000-0x001fffff 64bit]
Wed Jun 19 16:42:49 2019 kern.debug kernel: [ 0.444289] pci 0000:00:00.0: reg 0x30: [mem 0x00000000-0x0000ffff pref]
Wed Jun 19 16:42:49 2019 kern.debug kernel: [ 0.444354] pci 0000:00:00.0: supports D1
Wed Jun 19 16:42:49 2019 kern.debug kernel: [ 0.444361] pci 0000:00:00.0: PME# supported from D0 D1 D3hot
Wed Jun 19 16:42:49 2019 kern.debug kernel: [ 0.444543] pci_bus 0000:00: busn_res: [bus 00-ff] end is updated to 00
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.444567] pci 0000:00:00.0: BAR 0: assigned [mem 0x12000000-0x121fffff 64bit]
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.452312] pci 0000:00:00.0: BAR 6: assigned [mem 0x12200000-0x1220ffff pref]
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.459928] pci 0000:00:00.0: using irq 40 for pin 1
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.468511] clocksource: Switched to clocksource MIPS
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.474749] NET: Registered protocol family 2
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.480167] TCP established hash table entries: 1024 (order: 0, 4096 bytes)
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.487527] TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.494269] TCP: Hash tables configured (established 1024 bind 1024)
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.501055] UDP hash table entries: 256 (order: 0, 4096 bytes)
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.507220] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.514077] NET: Registered protocol family 1
Wed Jun 19 16:42:49 2019 kern.debug kernel: [ 0.518729] PCI: CLS 0 bytes, default 32
Wed Jun 19 16:42:49 2019 kern.warn kernel: [ 0.521126] Crashlog allocated RAM at address 0x3f00000
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.527594] workingset: timestamp_bits=30 max_order=15 bucket_order=0
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.540432] squashfs: version 4.0 (2009/01/31) Phillip Lougher
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.546577] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.565607] io scheduler noop registered
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.569780] io scheduler deadline registered (default)
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.575564] Serial: 8250/16550 driver, 16 ports, IRQ sharing enabled
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.584445] console [ttyS0] disabled
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.608285] serial8250.0: ttyS0 at MMIO 0x18020000 (irq = 11, base_baud = 1562500) is a 16550A
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.617381] console [ttyS0] enabled
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.624939] bootconsole [early0] disabled
Wed Jun 19 16:42:49 2019 kern.warn kernel: [ 0.638832] m25p80 spi0.0: found w25q128, expected m25p80
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.653650] m25p80 spi0.0: w25q128 (16384 Kbytes)
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 0.658555] 5 cmdlinepart partitions found on MTD device spi0.0
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 0.664666] Creating 5 MTD partitions on “spi0.0”:
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 0.669634] 0x000000000000-0x000000040000 : “u-boot”
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 0.676399] 0x000000040000-0x000000050000 : “u-boot-env”
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 0.683604] 0x000000050000-0x000000060000 : “art”
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 0.690221] 0x000000060000-0x000000260000 : “kernel”
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 0.697045] 0x000000260000-0x000000f1f000 : “reserved”
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.704526] spi-nand: Giga SPI NAND was found.
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 0.709172] spi-nand: 128 MiB, block size: 128 KiB, page size: 2048, OOB size: 128
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 0.717356] 1 cmdlinepart partitions found on MTD device spi0.1
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 0.723505] Creating 1 MTD partitions on “spi0.1”:
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 0.728459] 0x000000000000-0x000008000000 : “ubi”
Wed Jun 19 16:42:49 2019 kern.warn kernel: [ 1.182134] found bad block 7fe0000
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 1.186362] libphy: Fixed MDIO Bus: probed
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 1.200318] switch0: Atheros AR8337 rev. 2 switch registered on ag71xx-mdio.0
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 1.924585] libphy: ag71xx_mdio: probed
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 2.559957] ag71xx ag71xx.0: connected to PHY at ag71xx-mdio.0:00 [uid=004dd036, driver=Atheros AR8216/AR8236/AR8316]
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 2.571512] eth0: Atheros AG71xx at 0xb9000000, irq 4, mode:SGMII
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 2.578029] ehci_hcd: USB 2.0 ‘Enhanced’ Host Controller (EHCI) Driver
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 2.584812] ehci-pci: EHCI PCI platform driver
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 2.589573] usbcore: registered new interface driver usbtest
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 2.595464] usbcore: registered new interface driver usb_ehset_test
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 2.601956] random: fast init done
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 2.605534] usbcore: registered new interface driver lvs
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 2.612510] NET: Registered protocol family 10
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 2.621202] NET: Registered protocol family 17
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 2.625840] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 2.639341] 8021q: 802.1Q VLAN Support v1.8
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 2.648914] UBI: auto-attach mtd5
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 2.652368] ubi0: attaching mtd5
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 7.319282] ubi0: scanning is finished
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 7.374382] ubi0: attached mtd5 (name “ubi”, size 128 MiB)
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 7.380096] ubi0: PEB size: 131072 bytes (128 KiB), LEB size: 126976 bytes
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 7.387194] ubi0: min./max. I/O unit sizes: 2048/2048, sub-page size 2048
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 7.394213] ubi0: VID header offset: 2048 (aligned 2048), data offset: 4096
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 7.401405] ubi0: good PEBs: 1023, bad PEBs: 1, corrupted PEBs: 0
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 7.407695] ubi0: user volume: 2, internal volumes: 1, max. volumes count: 128
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 7.415161] ubi0: max/mean erase counter: 4/2, WL threshold: 4096, image sequence number: 1751850999
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 7.424594] ubi0: available PEBs: 0, total reserved PEBs: 1023, PEBs reserved for bad PEB handling: 19
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 7.434273] ubi0: background thread “ubi_bgt0d” started, PID 352
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 7.443889] block ubiblock0_0: created from ubi0:0(rootfs)
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 7.449613] ubiblock: device ubiblock0_0 (rootfs) set to be root filesystem
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 7.456800] hctosys: unable to open rtc device (rtc0)
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 7.481071] VFS: Mounted root (squashfs filesystem) readonly on device 254:0.
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 7.489731] Freeing unused kernel memory: 232K
Wed Jun 19 16:42:49 2019 kern.warn kernel: [ 7.494318] This architecture does not have kernel memory protection.
Wed Jun 19 16:42:49 2019 user.info kernel: [ 8.426169] init: Console is alive
Wed Jun 19 16:42:49 2019 user.info kernel: [ 8.429966] init: - watchdog -
Wed Jun 19 16:42:49 2019 user.info kernel: [ 11.321414] kmodloader: loading kernel modules from /etc/modules-boot.d/

Wed Jun 19 16:42:49 2019 kern.info kernel: [ 11.520820] exFAT: Version 1.2.9
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 11.559927] SCSI subsystem initialized
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 11.568686] ehci-platform: EHCI generic platform driver
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 11.574155] ehci-platform ehci-platform.0: EHCI Host Controller
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 11.580462] ehci-platform ehci-platform.0: new USB bus registered, assigned bus number 1
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 11.590938] ehci-platform ehci-platform.0: irq 48, io mem 0x1b000000
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 11.618551] ehci-platform ehci-platform.0: USB 2.0 started, EHCI 1.00
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 11.625362] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 11.632405] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 11.639873] usb usb1: Product: EHCI Host Controller
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 11.644907] usb usb1: Manufacturer: Linux 4.9.120 ehci_hcd
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 11.650585] usb usb1: SerialNumber: ehci-platform.0
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 11.656308] hub 1-0:1.0: USB hub found
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 11.660439] hub 1-0:1.0: 1 port detected
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 11.664775] ehci-platform ehci-platform.1: EHCI Host Controller
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 11.671090] ehci-platform ehci-platform.1: new USB bus registered, assigned bus number 2
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 11.681575] ehci-platform ehci-platform.1: irq 49, io mem 0x1b400000
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 11.708549] ehci-platform ehci-platform.1: USB 2.0 started, EHCI 1.00
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 11.715352] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 11.722390] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 11.729859] usb usb2: Product: EHCI Host Controller
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 11.734892] usb usb2: Manufacturer: Linux 4.9.120 ehci_hcd
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 11.740571] usb usb2: SerialNumber: ehci-platform.1
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 11.746284] hub 2-0:1.0: USB hub found
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 11.750417] hub 2-0:1.0: 1 port detected
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 11.757302] ohci_hcd: USB 1.1 ‘Open’ Host Controller (OHCI) Driver
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 11.765086] ohci-platform: OHCI generic platform driver
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 11.772952] uhci_hcd: USB Universal Host Controller Interface driver
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 11.783718] usbcore: registered new interface driver usb-storage
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 11.791782] usbcore: registered new interface driver uas
Wed Jun 19 16:42:49 2019 user.info kernel: [ 11.797909] kmodloader: done loading kernel modules from /etc/modules-boot.d/*
Wed Jun 19 16:42:49 2019 user.info kernel: [ 11.807658] init: - preinit -
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 12.738761] usb 2-1: new high-speed USB device number 2 using ehci-platform
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 13.010376] usb 2-1: New USB device found, idVendor=05e3, idProduct=0618
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 13.017321] usb 2-1: New USB device strings: Mfr=0, Product=1, SerialNumber=0
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 13.024717] usb 2-1: Product: USB2.0 Hub
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 13.080757] hub 2-1:1.0: USB hub found
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 13.088570] hub 2-1:1.0: 4 ports detected
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 13.108839] random: procd: uninitialized urandom read (4 bytes read)
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 13.484703] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 13.578534] usb 2-1.1: new high-speed USB device number 3 using ehci-platform
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 13.732848] usb 2-1.1: New USB device found, idVendor=05e3, idProduct=0752
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 13.739984] usb 2-1.1: New USB device strings: Mfr=3, Product=4, SerialNumber=0
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 13.747544] usb 2-1.1: Product: USB Storage
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 13.751873] usb 2-1.1: Manufacturer: Generic
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 13.757562] usb-storage 2-1.1:1.0: USB Mass Storage device detected
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 13.764766] scsi host0: usb-storage 2-1.1:1.0
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 14.520178] eth0: link up (1000Mbps/Full duplex)
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 14.525152] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 14.840213] scsi 0:0:0:0: Direct-Access Generic STORAGE DEVICE 0233 PQ: 0 ANSI: 0
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 14.853392] sd 0:0:0:0: [sda] Attached SCSI removable disk
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 16.749955] UBIFS (ubi0:1): background thread “ubifs_bgt0_1” started, PID 471
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 17.019953] UBIFS (ubi0:1): recovery needed
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 17.577629] UBIFS (ubi0:1): recovery completed
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 17.582323] UBIFS (ubi0:1): UBIFS: mounted UBI device 0, volume 1, name “rootfs_data”
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 17.590430] UBIFS (ubi0:1): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 17.600679] UBIFS (ubi0:1): FS size: 114786304 bytes (109 MiB, 904 LEBs), journal size 5713920 bytes (5 MiB, 45 LEBs)
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 17.611640] UBIFS (ubi0:1): reserved for root: 4952683 bytes (4836 KiB)
Wed Jun 19 16:42:49 2019 kern.notice kernel: [ 17.618472] UBIFS (ubi0:1): media format: w4/r0 (latest is w4/r0), UUID 03074A4B-967F-4BC6-B829-A1D7820F4153, small LPT model
Wed Jun 19 16:42:49 2019 user.info kernel: [ 17.669570] mount_root: switching to ubifs overlay
Wed Jun 19 16:42:49 2019 user.warn kernel: [ 17.753333] urandom-seed: Seeding with /etc/urandom.seed
Wed Jun 19 16:42:49 2019 kern.info kernel: [ 17.969347] eth0: link down
Wed Jun 19 16:42:49 2019 user.info kernel: [ 17.982436] procd: - early -
Wed Jun 19 16:42:49 2019 user.info kernel: [ 17.985496] procd: - watchdog -
Wed Jun 19 16:42:49 2019 user.info kernel: [ 18.636611] procd: - watchdog -
Wed Jun 19 16:42:49 2019 user.info kernel: [ 18.641080] procd: - ubus -

sorry still not the rights to add txt file from logs.
Middle part are missing now.

Wed Jun 19 16:43:12 2019 daemon.err hostapd: Configuration file: /var/run/hostapd-phy1.conf
Wed Jun 19 16:43:13 2019 user.notice ucitrack: Setting up /etc/config/network reload dependency on /etc/config/dhcp
Wed Jun 19 16:43:13 2019 user.notice ucitrack: Setting up /etc/config/network reload dependency on /etc/config/radvd
Wed Jun 19 16:43:13 2019 user.notice ucitrack: Setting up /etc/config/wireless reload dependency on /etc/config/network
Wed Jun 19 16:43:13 2019 user.notice ucitrack: Setting up /etc/config/firewall reload dependency on /etc/config/luci-splash
Wed Jun 19 16:43:13 2019 user.notice ucitrack: Setting up /etc/config/firewall reload dependency on /etc/config/qos
Wed Jun 19 16:43:13 2019 user.notice ucitrack: Setting up /etc/config/firewall reload dependency on /etc/config/miniupnpd
Wed Jun 19 16:43:13 2019 user.notice ucitrack: Setting up /etc/config/dhcp reload dependency on /etc/config/odhcpd
Wed Jun 19 16:43:14 2019 user.notice ucitrack: Setting up /etc/config/system reload trigger for non-procd /etc/init.d/led
Wed Jun 19 16:43:14 2019 user.notice ucitrack: Setting up /etc/config/system reload dependency on /etc/config/luci_statistics
Wed Jun 19 16:43:14 2019 user.notice ucitrack: Setting up /etc/config/system reload dependency on /etc/config/dhcp
Wed Jun 19 16:43:14 2019 kern.info kernel: [ 61.133622] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
Wed Jun 19 16:43:14 2019 kern.info kernel: [ 61.154855] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
Wed Jun 19 16:43:14 2019 kern.info kernel: [ 61.182607] br-lan: port 2(wlan0) entered blocking state
Wed Jun 19 16:43:14 2019 kern.info kernel: [ 61.188099] br-lan: port 2(wlan0) entered disabled state
Wed Jun 19 16:43:14 2019 kern.info kernel: [ 61.193999] device wlan0 entered promiscuous mode
Wed Jun 19 16:43:14 2019 kern.info kernel: [ 61.267036] br-lan: port 3(wlan1) entered blocking state
Wed Jun 19 16:43:14 2019 kern.info kernel: [ 61.272581] br-lan: port 3(wlan1) entered disabled state
Wed Jun 19 16:43:14 2019 kern.info kernel: [ 61.278411] device wlan1 entered promiscuous mode
Wed Jun 19 16:43:14 2019 daemon.notice hostapd: wlan0: interface state UNINITIALIZED->HT_SCAN
Wed Jun 19 16:43:14 2019 daemon.notice hostapd: wlan1: interface state UNINITIALIZED->COUNTRY_UPDATE
Wed Jun 19 16:43:14 2019 daemon.err hostapd: Using interface wlan1 with hwaddr e6:95:6e:47:78:28 and ssid “GL-AR750S-828”
Wed Jun 19 16:43:15 2019 daemon.err hostapd: Using interface wlan0 with hwaddr e4:95:6e:47:78:29 and ssid “GL-AR750S-828-5G”
Wed Jun 19 16:43:15 2019 user.notice ucitrack: Setting up /etc/config/mwan3 reload trigger for non-procd /etc/init.d/mwan3
Wed Jun 19 16:43:16 2019 daemon.notice hostapd: wlan1: interface state COUNTRY_UPDATE->ENABLED
Wed Jun 19 16:43:16 2019 daemon.notice hostapd: wlan1: AP-ENABLED
Wed Jun 19 16:43:17 2019 kern.info kernel: [ 63.657039] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
Wed Jun 19 16:43:17 2019 kern.info kernel: [ 63.663807] br-lan: port 2(wlan0) entered blocking state
Wed Jun 19 16:43:17 2019 kern.info kernel: [ 63.669335] br-lan: port 2(wlan0) entered forwarding state
Wed Jun 19 16:43:17 2019 daemon.notice hostapd: wlan0: interface state HT_SCAN->ENABLED
Wed Jun 19 16:43:17 2019 daemon.notice hostapd: wlan0: AP-ENABLED
Wed Jun 19 16:43:17 2019 kern.info kernel: [ 63.900319] IPv6: ADDRCONF(NETDEV_UP): wlan-sta: link is not ready
Wed Jun 19 16:43:17 2019 daemon.notice netifd: radio1 (2045): Successfully initialized wpa_supplicant
Wed Jun 19 16:43:17 2019 daemon.notice netifd: Network device ‘wlan0’ link is up
Wed Jun 19 16:43:18 2019 daemon.notice netifd: Interface ‘wwan’ is enabled
Wed Jun 19 16:43:18 2019 daemon.notice hostapd: handle_probe_req: send failed
Wed Jun 19 16:43:18 2019 daemon.notice procd: /etc/rc.d/S95done: killall: uqmi: no process killed
Wed Jun 19 16:43:18 2019 kern.info kernel: [ 65.386614] wlan-sta: authenticate with dc:9f:db:62:13:fd
Wed Jun 19 16:43:18 2019 kern.info kernel: [ 65.404987] wlan-sta: send auth to dc:9f:db:62:13:fd (try 1/3)
Wed Jun 19 16:43:18 2019 kern.info kernel: [ 65.425667] wlan-sta: authenticated
Wed Jun 19 16:43:18 2019 kern.info kernel: [ 65.518593] wlan-sta: associate with dc:9f:db:62:13:fd (try 1/3)
Wed Jun 19 16:43:18 2019 kern.info kernel: [ 65.544851] wlan-sta: RX AssocResp from dc:9f:db:62:13:fd (capab=0x421 status=0 aid=2)
Wed Jun 19 16:43:18 2019 kern.info kernel: [ 65.553152] wlan-sta: AP has invalid WMM params (AIFSN=1 for ACI 2), will use 2
Wed Jun 19 16:43:18 2019 kern.info kernel: [ 65.560755] wlan-sta: AP has invalid WMM params (AIFSN=1 for ACI 3), will use 2
Wed Jun 19 16:43:18 2019 kern.info kernel: [ 65.568424] wlan-sta: associated
Wed Jun 19 16:43:18 2019 daemon.notice netifd: Network device ‘wlan-sta’ link is up
Wed Jun 19 16:43:18 2019 daemon.notice netifd: Interface ‘wwan’ has link connectivity
Wed Jun 19 16:43:18 2019 daemon.notice netifd: Interface ‘wwan’ is setting up now
Wed Jun 19 16:43:18 2019 kern.info kernel: [ 65.576604] IPv6: ADDRCONF(NETDEV_CHANGE): wlan-sta: link becomes ready
Wed Jun 19 16:43:19 2019 daemon.notice netifd: wwan (3348): udhcpc: started, v1.28.3
Wed Jun 19 16:43:19 2019 daemon.notice netifd: wwan (3348): udhcpc: sending discover
Wed Jun 19 16:43:20 2019 daemon.notice procd: /etc/rc.d/S96led: setting up led WLAN2G
Wed Jun 19 16:43:20 2019 daemon.notice procd: /etc/rc.d/S96led: setting up led WLAN5G
Wed Jun 19 16:43:20 2019 kern.info kernel: [ 66.847941] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
Wed Jun 19 16:43:20 2019 kern.info kernel: [ 66.854706] br-lan: port 3(wlan1) entered blocking state
Wed Jun 19 16:43:20 2019 kern.info kernel: [ 66.860246] br-lan: port 3(wlan1) entered forwarding state
Wed Jun 19 16:43:20 2019 daemon.notice netifd: Network device ‘wlan1’ link is up
Wed Jun 19 16:43:20 2019 daemon.notice netifd: wwan (3348): udhcpc: sending select for 192.168.8.93
Wed Jun 19 16:43:20 2019 daemon.notice netifd: wwan (3348): udhcpc: lease of 192.168.8.93 obtained, lease time 3600
Wed Jun 19 16:43:21 2019 user.info : gl_health start->
Wed Jun 19 16:43:21 2019 daemon.notice netifd: Interface ‘wwan’ is now up
Wed Jun 19 16:43:21 2019 daemon.info dnsmasq[2456]: reading /tmp/resolv.conf.auto
Wed Jun 19 16:43:21 2019 daemon.info dnsmasq[2456]: using local addresses only for domain test
Wed Jun 19 16:43:21 2019 daemon.info dnsmasq[2456]: using local addresses only for domain onion
Wed Jun 19 16:43:21 2019 daemon.info dnsmasq[2456]: using local addresses only for domain localhost
Wed Jun 19 16:43:21 2019 daemon.info dnsmasq[2456]: using local addresses only for domain local
Wed Jun 19 16:43:21 2019 daemon.info dnsmasq[2456]: using local addresses only for domain invalid
Wed Jun 19 16:43:21 2019 daemon.info dnsmasq[2456]: using local addresses only for domain bind
Wed Jun 19 16:43:21 2019 daemon.info dnsmasq[2456]: using local addresses only for domain lan
Wed Jun 19 16:43:21 2019 daemon.info dnsmasq[2456]: using nameserver 8.8.8.8#53
Wed Jun 19 16:43:21 2019 daemon.info dnsmasq[2456]: using nameserver 8.8.4.4#53
Wed Jun 19 16:43:21 2019 daemon.notice procd: /etc/rc.d/S99gl_route_policy: uci: Entry not found
Wed Jun 19 17:26:58 2019 user.notice firewall: Reloading firewall due to ifup of wwan (wlan-sta)
Wed Jun 19 17:26:59 2019 daemon.info procd: - init complete -
Wed Jun 19 17:27:02 2019 daemon.info hostapd: wlan1: STA d8:1c:79:63:46:67 IEEE 802.11: authenticated
Wed Jun 19 17:27:02 2019 daemon.info hostapd: wlan1: STA d8:1c:79:63:46:67 IEEE 802.11: associated (aid 1)
Wed Jun 19 17:27:02 2019 daemon.notice hostapd: wlan1: AP-STA-CONNECTED d8:1c:79:63:46:67
Wed Jun 19 17:27:02 2019 daemon.info hostapd: wlan1: STA d8:1c:79:63:46:67 RADIUS: starting accounting session 1207AE9EA76AB533
Wed Jun 19 17:27:02 2019 daemon.info hostapd: wlan1: STA d8:1c:79:63:46:67 WPA: pairwise key handshake completed (RSN)
Wed Jun 19 17:27:05 2019 daemon.info dnsmasq-dhcp[2456]: DHCPDISCOVER(br-lan) d8:1c:79:63:46:67
Wed Jun 19 17:27:05 2019 daemon.info dnsmasq-dhcp[2456]: DHCPOFFER(br-lan) 10.168.8.237 d8:1c:79:63:46:67
Wed Jun 19 17:27:05 2019 daemon.info dnsmasq-dhcp[2456]: DHCPDISCOVER(br-lan) d8:1c:79:63:46:67
Wed Jun 19 17:27:05 2019 daemon.info dnsmasq-dhcp[2456]: DHCPOFFER(br-lan) 10.168.8.237 d8:1c:79:63:46:67
Wed Jun 19 17:27:06 2019 daemon.info dnsmasq-dhcp[2456]: DHCPREQUEST(br-lan) 10.168.8.237 d8:1c:79:63:46:67
Wed Jun 19 17:27:06 2019 daemon.info dnsmasq-dhcp[2456]: DHCPACK(br-lan) 10.168.8.237 d8:1c:79:63:46:67 Gerds-iPhone
Wed Jun 19 17:27:10 2019 kern.notice kernel: [ 86.278551] random: crng init done
Wed Jun 19 17:27:10 2019 kern.notice kernel: [ 86.282073] random: 6 urandom warning(s) missed due to ratelimiting
Wed Jun 19 17:27:27 2019 daemon.info hostapd: wlan0: STA 98:3b:8f:c7:e3:e5 IEEE 802.11: authenticated
Wed Jun 19 17:27:27 2019 daemon.info hostapd: wlan0: STA 98:3b:8f:c7:e3:e5 IEEE 802.11: associated (aid 1)
Wed Jun 19 17:27:27 2019 daemon.notice hostapd: wlan0: AP-STA-CONNECTED 98:3b:8f:c7:e3:e5
Wed Jun 19 17:27:27 2019 daemon.info hostapd: wlan0: STA 98:3b:8f:c7:e3:e5 RADIUS: starting accounting session 8BC233130FA47652
Wed Jun 19 17:27:27 2019 daemon.info hostapd: wlan0: STA 98:3b:8f:c7:e3:e5 WPA: pairwise key handshake completed (RSN)
Wed Jun 19 17:27:27 2019 daemon.info dnsmasq-dhcp[2456]: DHCPREQUEST(br-lan) 10.168.8.138 98:3b:8f:c7:e3:e5

From your log I can see that you connected an USB driver to the USB port and it is trying to mount multiple times. This generally means that the power cannot provide enough power. I think this also affected your wifi.

If you put AR750S in a place with good airflow cooling should not be an issue.

About repeater wifi I suggest you repeat 5G wifi, not 2.4G, which will be much stable and fast. But seems this is not the reason causing your problem.