GL-AR750 - losing wifi-connection to modem

duke1981 · 2022-01-21T19:25:27.596Z

Hello, i have a GL-AR750 (FW 3.211). I use it for a helium miner (sensecap) und OpenVPN.

GL-AR750 is connected by wifi to the internet router. The miner is connected by LAN to the GL.
I have the problem, that the system works stable only few days. Then the GL losing WLAN connection.
If I reconnect it to to internet router it works a few hours, then losing the connection again. After powering off, it is stable 2-3 days.
Automatic reconnect to wifi is on.
The distance from internet router to GL-AR750 is only 2 meters.

The internet router is a VODAFONE Station, but also tested with Fritzbox router.

I also use 30pcs of mango routers, all stable, same configurations.

Does the GL-AR750 has a logfile? How can i get this?

Hope to get some help.im really frustrated

regards.

wcs2228 · 2022-01-21T22:59:36.444Z

2 options to get System Log and Kernel Log:

Log in via SSH using PuTTY freeware or equivalent, with root password same as admin password.
Run command “logread” for System Log and “dmesg” for Kernel Log.
Log into LuCI and go to Status → System Log and Status → Kernel Log.

Use screenshots or copy&paste to save the logs.

alzhao · 2022-01-22T03:58:55.437Z

yes pls get the log to have a check.

Also change wifi settings in your AR750 HT40 to HT20. This will affect repeater.

HT20 is more stable

duke1981 · 2022-01-22T08:41:14.023Z

Hey, thank you:
LOG:

docs.google.com

log

at Jan 22 05:57:36 2022 daemon.notice openvpn[21620]: Pushed option removed by filter: 'route-ipv6 2000::/3' Sat Jan 22 05:57:36 2022 daemon.warn openvpn[21620]: WARNING: You have specified redirect-gateway and redirect-private at the same time (or...

kernel:

docs.google.com

kernel

[472775.279619] IPv6: ADDRCONF(NETDEV_UP): tmp.radio0: link is not ready [472776.591822] ath10k_pci 0000:00:00.0: pdev param 0 not supported by firmware [472776.615781] IPv6: ADDRCONF(NETDEV_UP): tmp.radio0: link is not ready [472827.229732] IPv6:...

Unfortunately i saved log after rebooting device…

duke1981 · 2022-01-22T08:47:11.737Z

I changed it into HT20, thanks.

The AR740 is set up not at my home, i installed watchcat know in order not to lose internet connection from my helium miner.

But i dont want rely on it, i want to find out the real problem for losing wifi connection.

alzhao · 2022-01-23T14:19:17.222Z

Thanks for the log. But after you reboot, the log was gone.

duke1981 · 2022-01-25T20:12:43.989Z

docs.google.com

kernellog

[3193988.649965] 929, flush one! [3193988.918913] 92f, flush one! [3193989.515766] 93f, flush one! [3193992.250290] 989, flush one! [3194113.979329] ad5, flush one! [3194514.136817] b94, flush one! [3194515.312257] c34, flush one! [3194516.633493]...

docs.google.com

systemlog

Sun Jan 23 20:23:15 2022 daemon.notice openvpn[545]: VERIFY EKU OK Sun Jan 23 20:23:15 2022 daemon.notice openvpn[545]: VERIFY X509NAME OK: CN=server_8JIqW7ooJUYPGslc Sun Jan 23 20:23:15 2022 daemon.notice openvpn[545]: VERIFY OK: depth=0,...

It’s not the 750, it’s the mango. connected by LAN… offline for a short time

alzhao · 2022-01-26T08:40:51.313Z

I checked the log.

There is no log related to repeater. So cannot indentify repeater problems.

The logs shows that the openvpn has some update per hours. Not sure if this desired and affect your Internet.

There is log related to ipv6. If you do not need you can try disable ipv6, both on the router and in vpn config