Sun Jan 3 09:09:56 2021 kern.info kernel: [311527.097283] usb 1-1: USB disconnect, device number 3
Sun Jan 3 09:10:01 2021 kern.info kernel: [311531.237258] usb 1-1: new high-speed USB device number 4 using orion-ehci
from logread
[311527.097283] usb 1-1: USB disconnect, device number 3
[311531.237258] usb 1-1: new high-speed USB device number 4 using orion-ehci
Thu Jan 7 10:40:24 2021 kern.info kernel: [ 931.038024] usb 1-1: USB disconnect, device number 2
Thu Jan 7 10:40:26 2021 kern.info kernel: [ 932.366614] usb 1-1: new high-speed USB device number 3 using orion-ehci
Thu Jan 7 10:40:39 2021 daemon.notice netifd: radio0 (11242): sh: out of range
Thu Jan 7 10:40:40 2021 daemon.notice netifd: radio0 (11242): command failed: No such device (-19)
Thu Jan 7 10:40:40 2021 user.notice mac80211: Failed command: iw phy phy2 interface add wlan0 type __ap
Thu Jan 7 10:40:40 2021 daemon.err hostapd: Configuration file: /var/run/hostapd-phy2.conf
Thu Jan 7 10:40:40 2021 daemon.err hostapd: Line 33: invalid SSID ‘’
Thu Jan 7 10:40:40 2021 daemon.err hostapd: 1 errors found in configuration file ‘/var/run/hostapd-phy2.conf’
Thu Jan 7 10:40:40 2021 daemon.err hostapd: Failed to set up interface with /var/run/hostapd-phy2.conf
Thu Jan 7 10:40:40 2021 daemon.err hostapd: Failed to initialize interface
Thu Jan 7 10:40:40 2021 daemon.notice netifd: radio0 (11242): cat: can’t open ‘/var/run/wifi-phy2.pid’: No such file or directory
Thu Jan 7 10:40:40 2021 daemon.notice netifd: radio0 (11242): WARNING (wireless_add_process): executable path /usr/sbin/wpad does not match process path (/proc/exe)
Thu Jan 7 10:40:40 2021 daemon.notice netifd: radio0 (11242): Command failed: Invalid argument
Thu Jan 7 10:40:40 2021 daemon.notice netifd: radio0 (11242): Device setup failed: HOSTAPD_START_FAILED
Thu Jan 7 10:40:45 2021 kern.info kernel: [ 951.557911] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
I opkg installed the ipk again and re-plugged the dongle. logread has more errors now.
If you are using multiple wireless interfaces, you can check that working by leaving one and disabling it.
Also, the transmission may be restricted even with a combination of non-interfering channels, so only use 1, 6, 11 be preferred for 2.4GHz.