USB tethering as fallover on GL-ax1800

[tommiedepommie]

Hello,
I have my gl-ax1800 connected to the modem of my internetprovider which works normally great.
Installed WG server and client and ADG .

Today, the WAN itnernet connection got disconnected and i wanted to connect my Android phone as USB tethering device.
I activated usb tethering and my phone got connected.
Then i tried to open a webpage from a client, but nothing happened.
I changed the internet priority but the same, no internet connection through usb tethering.

I connected my desktop PC using a wlan stick and now I can type this message so internet is working through my phone.

How can I get USB (or other) internet connection active using the GL-AX1800. (FW 4.23)

Thank you

Tom

[lizh]

Do ax1800 have multiple network exits?

[tommiedepommie]

what do you mean ?
GL-AX1800 has four network connections, yes.

[tommiedepommie]

Well,

I resetted the router and i could make a USB tethering connection.
Normally my router is in DMZ of my internet provider’s modem.

When I restored my configuration, WG client, WG server, ADG, I could NOT establish an USB tethering connection as a backup.

It connects but the network can not access the internet. Even when changing network priority.

Is this normal behaviour or is there a solution to use USB tethering as backup?

[bring.fringe18]

WG + tethering, you say? This might just be related:

[Bug] GL GUI: Multi-WAN Interface Priority not honored/have effect

Device: Burme 2 (GL-MT2500) Firmware: 4.2.3 release 5 (OpenWrt 21.02-SNAPSHOT) Goal tethering interface to be the primary Internet connection for the Multi-WAN setup while the Ethernet is also connected to the Burme 2’s WAN port. Issue The Ethernet takes priority for all Internet connections in a Multi-WAN setup but the tethered device offers a faster connection. Interface Priority is reported to have been adjusted within the GL GUI → Network → Multi-WAN → Interface Priority but does not se…

[tommiedepommie]

Hello bring.fringe18,

As I said, tethering is working on a resetted device.
On a fully configured device (WG client and server) it does NOT work.
First i thought it was the DOH from ADG but your topic seems the same problem as mine.
Let’s hope Glinet fixes that bug quickly.

Thank you

[tommiedepommie]

Hello,

I was wondering if it is possible to use USB tethering on a fully configured GL-AX1800 router as backup?
Yesterday once more, I was disconnected from my landline and tried to use my phone as a backup line.
It didn’t worked.
I’m still on FW 4.2.3 but downloaded version 4.4.6 already.

Does this problem exists also on de GL-AX1800 Flint 2?

I’m very curious for a solution because here (France/mountains) the landlines are above ground and very fragile for disturbence.

Thank you for your replies.

Tom

[admon]

@tommiedepommie

Yesterday once more, I was disconnected from my landline and tried to use my phone as a backup line.
It didn’t worked.

Did you get any error message?

[tommiedepommie]

Hello,
thank you for your quick reply. My logs to not go so far back as yesterday but I will produce the log again today.
You want to see the system log?

[admon]

More logs = better.

So system + kernel log would be fine, yes.

[tommiedepommie]

Hello,

I tried to connect the internet using my phone today and this is was I did:

1. connect phone using USB to Ax-1800

2. put phone in USB Tethering mode

3. opened webinterface AX-1800

4. multiwan→interface priority Tethering to position 1

main menu

5. connect tethering Wait till message ‘device connected but internet could not be reached’ message dissapeared.

6. disconnected WAN cable from AX-1800

7. tested internet using speedtest.net

No internet connection available.

I’m using AdGuardHome on the router to block advertising.
I downloaded the logfiles but there’s too much personal information in it to filter fast.
just a part of the kernel logfiles.

[1108739.244907] nss-dp 3a001000.dp1 eth0: PHY Link is down
[1108739.259423] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[1108742.244816] nss-dp 3a001000.dp1 eth0: PHY Link up speed: 1000
[1108742.245165] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[1110886.257556] nss-dp 3a001000.dp1 eth0: PHY Link is down
[1110886.274419] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[1110890.257590] nss-dp 3a001000.dp1 eth0: PHY Link up speed: 1000
[1110890.257667] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[1110934.267190] nss-dp 3a001000.dp1 eth0: PHY Link is down
[1110934.282633] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[1110937.266886] nss-dp 3a001000.dp1 eth0: PHY Link up speed: 1000
[1110937.267241] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[1111399.263067] nss-dp 3a001200.dp2 eth1: PHY Link is down
[1111399.263755] br-lan: port 1(eth1) entered disabled state
[1111401.263067] nss-dp 3a001200.dp2 eth1: PHY Link up speed: 1000
[1111401.263446] br-lan: port 1(eth1) entered forwarding state
[1111401.267841] br-lan: port 1(eth1) entered forwarding state
[1111409.292886] br-lan: port 1(eth1) entered forwarding state
[1113031.569619] usb 1-1: new high-speed USB device number 2 using xhci-hcd
[1113093.408771] usb 1-1: USB disconnect, device number 2
[1113093.899149] usb 1-1: new high-speed USB device number 3 using xhci-hcd
[1113094.075782] rndis_host 1-1:1.0 usb0: register 'rndis_host' at usb-xhci-hcd.0.auto-1, RNDIS device, 7e:c7:39:8b:8f:2c
[1113130.363736] IPv6: ADDRCONF(NETDEV_UP): usb0: link is not ready
[1113546.400014] usb 1-1: USB disconnect, device number 3
[1113546.400140] rndis_host 1-1:1.0 usb0: unregister 'rndis_host' usb-xhci-hcd.0.auto-1, RNDIS device
[1188716.664494] usb 1-1: new high-speed USB device number 4 using xhci-hcd
[1188750.491971] usb 1-1: USB disconnect, device number 4
[1188750.904231] usb 1-1: new high-speed USB device number 5 using xhci-hcd
[1188751.068482] rndis_host 1-1:1.0 usb0: register 'rndis_host' at usb-xhci-hcd.0.auto-1, RNDIS device, 0e:67:a3:fc:1a:2f
[1188875.107621] IPv6: ADDRCONF(NETDEV_UP): usb0: link is not ready
[1188960.682928] nss-dp 3a001000.dp1 eth0: PHY Link is down
[1188960.697729] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[1189012.682611] nss-dp 3a001000.dp1 eth0: PHY Link up speed: 1000
[1189012.682681] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[1189014.437024] usb 1-1: USB disconnect, device number 5
[1189014.437256] rndis_host 1-1:1.0 usb0: unregister 'rndis_host' usb-xhci-hcd.0.auto-1, RNDIS device

[admon]

@tommiedepommie

No internet connection available.

Did you test ping by IP as well? So we can understand if the internet fails or DNS only?

[tommiedepommie]

Hello admon,

at first, no.

So i did the same test a bit later.

Connected my phone, disconnected the WAN cable, then in the interface changed the priority and connected the tethering.

After awhile, ping worked. Then I ping’d the website name and that worked also.

I opened the browser, tried to test the speed and it got disconnected.

USB tethering was disabled on my phone.

Changed USB cable, still after awhile it got disconnected.

Then I noticed on my phone, BT tethering was also active so i deactivated BT tethering.

Reconnected and it was way better. It didn’t disconnect.

So, it seems you assistance has helped.

Later on I will test it again if it remains stable but I have good hope.

Even some of my devices behind VPN, remained behind VPN.

Thank you for your quick replies and your suggestions.

Tom