GL-MT6000 VPN Problem

Technical Support for Routers
21

Hmm i know a way to rule out if its really a config issue/bug or a issue by upgrading :wink:

What i would suggest are two methods where you can work with:

The luci method:

You create a backup via luci → System tab → Firmware/backup (it might show a bit different name but I’m on a phone).

Once you got the tar or gz file make a extra copy just to be sure, then open it with 7zip remove everything except for the path /etc/config there might be parent directories just keep the path as it is, now you can selectively decide which of these config files you want to include and which ones you want to ‘ignore’, you can delete them.

Then go to the gl ui, and reset, then upload your modified backup via the luci backup mechanism.

The winscp method:

You scp in the router and copy the folder /etc/config and then reset it and place for each the config back.

This is often the way i also choose if i don’t trust the keep settings :grinning:, it normally should be trusted but you have no overview what has been changed, pointing to internal scripts which may or may not migrate to a newer version.

22

What I am thing could be problem wireguard with dns. If remove one line dns :thinking:

23

With DNS without DNS line.
Provider DNS or just Google or others, no chance

tried everything

24

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As long as Wireguard is switched on, it shows connected (the light is green) but no connection is established

25

Could you explain how you test if the connection is established?

1 Like
26

By trying to access a website. Or do a speed test. or connect to my cell phone, etc. Even restarting doesn’t help

27

Could you please do a ping forum.gl-inet.com from a device that is connected to the router?

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Bildschirmfoto vom 2024-01-15 12-02-04

29

Could you please run curl https://ifconfig.me and check if the result is a WG IP?

30

So after forever back and forth I finally managed to get it running again.

One thing stands out, however. Regardless of whether Nordvpn or Surfshark, despite a 200 mbit line, both never go above 90 or 115 mbit with openvpn and UDP. You don’t even need to mention TCP, it’s much slower.

So I tested over 30 different servers with both providers, all without success. Changing DNS didn’t work either.

With Wireguard, Nordvpn is at 100 mbit and Surfhshark is at 135 mbit.

Everything doesn’t fit with the stated values.

31

I just got a replacement device (Flint2) and am trying to keep it running.

The router runs exclusively in Wireguard mode and has been relatively stable over the last few days.

Despite multiple restarts, server changes, provider changes, etc., it now zigs around and reduces its speed to almost zero.

A restart helps for a short time, but it doesn't last long. If I turn Wiregaurd off, the speed returns after a restart and it works.

What could this be because absolutely nothing has been done on the router for the last few days. ????

32

I would guess: The server you are connecting to. Or maybe your ISP.
Or high package lost in UDP.

33

Starlink switches on in the evening and in the morning at 6.30 a.m. The router reboots completely at 6:45 with an automatic restart.

Nothing was changed there.

34

Internet is more than just your router. So it might be even an issue completely outside your network.

Way more testing would be required. Like permanent pinging, WAN speedtests, and so on...

35

Otherwise Wireguard ran without any problems.

If I restart the router, it works as quickly as usual.

If I turn off Wireguard, the internet is back at full speed.

Absolutely nothing was changed on my part for there to be a reason for it to be slower.

All of a sudden it's the router+wireguard.

36

Wireguard as Client?

About what kind of speed drop do we talk?
It is normal that Wireguard will reduce speed.

37

As a client, depending on how or where the satellites (starlink) are, up to over 400 mbps with Wireguard.

Since the problem started it breaks down and goes down to 10 MBps. Websites also open extremely slowly

38

Please try to use OpenVPN TCP instead. UDP might be unreliable using StarLink, maybe.

39

Uhhh Openvpn TCP??? at Wireguard???? How is that supposed to work?

I only use Wirguard. Open VPN is too slow for me

40

It is supposed to work that you disable WireGuard and use OpenVPN TCP instead.

Sometimes this is necessary if UDP is failing. You can try to play around with the WireGuard MTU as well. But WireGuard is nearly impossible to troubleshoot if there are issues like this. So most will be just try 'n error.