GL-AR750S Huawei E3372 and E3276 not found?

[symore]

I don 't know how to setup the stick manully. My hope was not to do that.

attached a screen of my manual setup.

I found some information about the Huawai AT Commands:
AT^SETPORT? - show current mode
AT^SETPORT=? - show available modes

^SETPORT:1: 3G MODEM
^SETPORT:2: 3G PCUI
^SETPORT:3: 3G DIAG
^SETPORT:5: 3G GPS
^SETPORT:A: BLUE TOOTH
^SETPORT:16: NCM
^SETPORT:A1: CDROM
^SETPORT:A2: SD
^SETPORT:10: 4G MODEM
^SETPORT:12: 4G PCUI
^SETPORT:13: 4G DIAG
^SETPORT:14: 4G GPS

This was the default port set on my first try: AT^SETPORT:A1,A2;12,16,A1,A2

I changed it now to this port set: AT^SETPORT=“FF;10,12,16”
I found that on another Forum
But no Luck with this port set too. It doen’t connect on the GL-AR750S but on Windows.
In the Router I found some connection logging on the System Log. Maybe this helps to find out why its not connecting:

Sun Aug 11 13:11:28 2019 daemon.notice netifd: Interface ‘modem_1_1’ is now down
Sun Aug 11 13:11:28 2019 daemon.notice netifd: Interface ‘modem_1_1’ is setting up now
Sun Aug 11 13:11:31 2019 daemon.notice netifd: modem_1_1 (23224): Trying to set mode
Sun Aug 11 13:11:31 2019 daemon.notice netifd: modem_1_1 (23224): Error setting WWAN mode!
Sun Aug 11 13:11:31 2019 daemon.notice netifd: modem_1_1 (23224): cat: can’t open ‘/tmp/modem.1-1/signal’: No such file or directory
Sun Aug 11 13:11:31 2019 daemon.notice pppd[23397]: pppd 2.4.7 started by root, uid 0
Sun Aug 11 13:11:32 2019 local2.info chat[23414]: abort on (BUSY)
Sun Aug 11 13:11:32 2019 local2.info chat[23414]: abort on (NO CARRIER)
Sun Aug 11 13:11:32 2019 local2.info chat[23414]: abort on (ERROR)
Sun Aug 11 13:11:32 2019 local2.info chat[23414]: report (CONNECT)
Sun Aug 11 13:11:32 2019 local2.info chat[23414]: timeout set to 10 seconds
Sun Aug 11 13:11:32 2019 local2.info chat[23414]: send (AT+CGDCONT=1,“IP”,“internet.eplus.de”^M)
Sun Aug 11 13:11:33 2019 local2.info chat[23414]: timeout set to 30 seconds
Sun Aug 11 13:11:33 2019 local2.info chat[23414]: expect (OK)
Sun Aug 11 13:11:33 2019 local2.info chat[23414]: ^M
Sun Aug 11 13:11:33 2019 local2.info chat[23414]: OK
Sun Aug 11 13:11:33 2019 local2.info chat[23414]: – got it
Sun Aug 11 13:11:33 2019 local2.info chat[23414]: send (ATD99**1#^M)
Sun Aug 11 13:11:33 2019 local2.info chat[23414]: expect (CONNECT)
Sun Aug 11 13:11:33 2019 local2.info chat[23414]: ^M
Sun Aug 11 13:11:33 2019 local2.info chat[23414]: ^M
Sun Aug 11 13:11:33 2019 local2.info chat[23414]: +CME ERROR
Sun Aug 11 13:11:33 2019 local2.info chat[23414]: – failed
Sun Aug 11 13:11:33 2019 local2.info chat[23414]: Failed (ERROR)
Sun Aug 11 13:11:33 2019 daemon.err pppd[23397]: Connect script failed
Sun Aug 11 13:11:34 2019 daemon.info pppd[23397]: Exit.

[alzhao]

@alzhao

Does the modem works in tethering mode

Can you answer this question by giving a screenshot of the Internet UI, including tethering area?

You can also ssh to the router and check interfaces using the following command

ls /dev/
ifconfig -a

[symore]

I cannot use the Tethering Option because it says no Tethering device found (see screen).
This is the output of both commands:

root@GL-AR750S:~# ls /dev/
bus mtdblock0 ttyS14
cdc-wdm0 mtdblock1 ttyS15
console mtdblock2 ttyS2
cpu_dma_latency mtdblock3 ttyS3
full mtdblock4 ttyS4
fuse mtdblock5 ttyS5
gpiochip0 net ttyS6
gpiochip1 network_latency ttyS7
hwrng network_throughput ttyS8
kmsg null ttyS9
log port ttyUSB0
memory_bandwidth ppp ttyUSB1
mtd0 ptmx ubi0
mtd0ro pts ubi0_0
mtd1 random ubi0_1
mtd1ro sda ubi_ctrl
mtd2 shm ubiblock0_0
mtd2ro tty urandom
mtd3 ttyS0 usbmon0
mtd3ro ttyS1 usbmon1
mtd4 ttyS10 usbmon2
mtd4ro ttyS11 watchdog
mtd5 ttyS12 zero
mtd5ro ttyS13

root@GL-AR750S:~# ifconfig -a
br-lan Link encap:Ethernet HWaddr E4:95:6E:47:7B:CC
inet addr:192.168.8.1 Bcast:192.168.8.255 Mask:255.255.255.0
inet6 addr: fd80:2f33:d0d0:10::1/60 Scope:Global
inet6 addr: fe80::e695:6eff:fe47:7bcc/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3795 errors:0 dropped:0 overruns:0 frame:0
TX packets:3027 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:455274 (444.6 KiB) TX bytes:365718 (357.1 KiB)

eth0 Link encap:Ethernet HWaddr E4:95:6E:47:7B:CC
inet6 addr: fe80::e695:6eff:fe47:7bcc/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3799 errors:0 dropped:0 overruns:0 frame:0
TX packets:3165 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:523840 (511.5 KiB) TX bytes:417910 (408.1 KiB)
Interrupt:4

eth0.1 Link encap:Ethernet HWaddr E4:95:6E:47:7B:CC
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3799 errors:0 dropped:4 overruns:0 frame:0
TX packets:3027 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:455458 (444.7 KiB) TX bytes:365718 (357.1 KiB)

eth0.2 Link encap:Ethernet HWaddr E4:95:6E:47:7B:CC
inet6 addr: fe80::e695:6eff:fe47:7bcc/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:124 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:38172 (37.2 KiB)

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:305 errors:0 dropped:0 overruns:0 frame:0
TX packets:305 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1
RX bytes:20028 (19.5 KiB) TX bytes:20028 (19.5 KiB)

teql0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
NOARP MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

wlan0 Link encap:Ethernet HWaddr E4:95:6E:47:7B:CD
inet6 addr: fe80::e695:6eff:fe47:7bcd/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:735 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:91702 (89.5 KiB)

wlan1 Link encap:Ethernet HWaddr E4:95:6E:47:7B:CC
inet6 addr: fe80::e695:6eff:fe47:7bcc/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:736 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:91790 (89.6 KiB)

wwan0 Link encap:Ethernet HWaddr 0C:5B:8F:27:9A:64
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

[alzhao]

I see. Thanks. One way could be to set up nom connection for this modem. You can refer to openwrt for some guide. Like this one Huawei E3372 with NCM - #13 by bmork - Installing and Using OpenWrt - OpenWrt Forum

Another way is to try ROOter firmware from here ROOter by Of Modems and Men download the one for AR750S. It is only for Nor flash so pls flash via boot.

[symore]

I solved it for myself. I followed the instructions below:

Use NCM USB Dongle for WAN connection

I found out that everything is already installed. So I edited the file / etc / config / network as described and had a first success.However, the connection only worked sometimes.
I added on the Interface ‘modem_1_1’ the following:
option pincode ‘xxxx’ xxxx stands for your SIM PIN.
Now the connection works every time I startup the Router.
The Router Website is now also showing the traffic and IP Address:

This are my settings for both interfaces ‘wwan’ and ‘modem_1_1’:
config interface ‘wwan’
option proto ‘ncm’
option device ‘/dev/cdc-wdm0’
option ifname ‘wwan0’
option apn ‘internet’
option mode ‘preferlte’
option pincode ‘xxxx’ ← PIN of your SIM
option delay ‘5’

config interface ‘modem_1_1’
option ifname ‘3g-modem’
option service ‘fdd_lte’
option proto ‘3g’
option device ‘/dev/ttyUSB0’
option metric ‘40’
option disabled ‘0’
option pincode ‘xxxx’ ← PIN of your SIM

Thank you for your support, maybe my solution will help you too.

[alzhao]

Interesting you set up wwan and modem_1_1 at the same time.

But which one is working? I assume only one config is necessary.

[symore]

you’re right, only the interface ‘modem_1_1’ is active/working

[Tukufu42]

It may need to be unlocked. I have that same one, & it works, but the internet connection is really slow. It’s nothing to brag about. You’ll be better off using the EasyTether APK on a cell phone & do the proper driver installations & command prompts