Flint 2 (GL-MT6000) unable to create Wireguard profiles

Raboo · December 6, 2023, 1:10pm

Hi,

I can’t create Wireguard profiles. I get this error:
Unknown error occurred. Please check the network environment or reboot the device.

HTTP response to the POST:
{"id":15,"jsonrpc":"2.0","error":{"message":"Internal error","code":-32603}}

nginx error log:
2023/12/06 12:25:09 [error] 4741#0: *57587 upstream prematurely closed FastCGI stdout while reading response header from upstream, client: 192.168.0.197, server: , request: "POST /rpc HTTP/1.1", subrequest: "/cgi-bin/glc", upstream: "fastcgi://unix:/var/run/fcgiwrap.socket:", host: "192.168.0.1", referrer: "https://192.168.0.1/"

Tested firmware 4.5.3 and 4.5.4.
Rebooted router.
Tried adding profiles with Wireguard server both turned on and off.

hansome · December 7, 2023, 2:48am

Can you describe the steps to reproduce the issue?

Raboo · December 7, 2023, 2:07pm

@hansome, sure

Configure and start Wireguard Server.
Go to VPN → Wireguard Server → Profiles and press the “+ Add” button. Insert a name and press Apply.

Raboo · December 7, 2023, 2:58pm

I have an update. I was using 172.30.0.1/24 as Wireguard IPv4 Address. I tried changing to 10.10.0.1/24, then it worked. So it seems that private range 172.16.0.0/12 is not available for wireguard in this device, only 10.0.0.0/8 and 192.168.0.0/16 private ranges seems to work.

Really there should be some documentation or a warning notices if there is a range that is forbidden.

hansome · December 8, 2023, 2:24am

Thank you very much. It’s a bug. We’ll fix it ASAP.

MitchMitchell · August 4, 2024, 1:22pm

hansome:
I'm having a similar problem with my Gl-iNet GL-MT 6000.
Kernel version: 5.4.238
I cannot create or access existing Wireguard profiles. I get the following error:
"Unknown error occurred. Please check the network environment or reboot the device."

I'm using the following firmware:
Version 4.6.2
Firmware Typerelease1
Compile Time 2024-06-28 09:59:09 (UTC+00:00)
(I also tried the following firmware:
openwrt-mt6000-4.5.8-0412-1712898190
openwrt-mt6000-4.6.0-op24-0607-1717748727)

The router is scheduled to restart itself at 03:00 everyday.

In advance, thank you for your assistance.