Dual MT3000 setup suddenly stopped working

Technical Support for Routers
1

Hi,

I've been traveling for the past year+ and had no problems until the past week. The only change was some physical wires as I moved desks around. Same internet connection, no firmware updates, settings changes, etc.

My travel router WireGuard gets stuck: "The client is starting, please wait…" The vpn configs(ddns and noddns) on my iphone stopped working as well. I'm avoiding firmware updates for now, to limit adding new factors as everything was working just fine. I won't be home and won't have access to the server for a few months.

daemon.notice netifd: wgclient (29542):    * Zone 'lan'
daemon.notice netifd: wgclient (29542):    * Zone 'wan'
daemon.notice netifd: wgclient (29542):    * Zone 'guest'
daemon.notice netifd: wgclient (29542):  * Set tcp_ecn to off
daemon.notice netifd: wgclient (29542):  * Set tcp_syncookies to on
daemon.notice netifd: wgclient (29542):  * Set tcp_window_scaling to on
daemon.notice netifd: wgclient (29542):  * Running script '/etc/firewall.nat6'
daemon.notice netifd: wgclient (29542):  * Running script '/etc/firewall.vpn_server_policy.sh'
daemon.notice netifd: wgclient (29542): iptables: Too many links.
daemon.notice netifd: wgclient (29542): iptables: Chain already exists.
daemon.notice netifd: wgclient (29542):  * Running script '/var/etc/gls2s.include'
daemon.notice netifd: wgclient (29542):    ! Skipping due to path error: No such file or directory
daemon.notice netifd: wgclient (29542):  * Running script '/usr/bin/gl_block.sh'
daemon.notice netifd: wgclient (29542): Failed to parse json data: unexpected character
daemon.notice netifd: wgclient (29542): cat: can't open '/tmp/run/wg_resolved_ip': No such file or directory
daemon.notice netifd: Interface 'wgclient' is now down
user.notice mwan3[29625]: Execute ifdown event on interface wgclient (unknown)
user.notice firewall: Reloading firewall due to ifdown of wgclient ()
daemon.notice netifd: Interface 'wgclient' is setting up now
daemon.notice netifd: wgclient (2778): Error: inet6 prefix is expected rather than \"\".

I have two MT3000's, using WireGuard. Firmware version 4.4.5 client side, assuming server side is the same.

[Interface]
Address = 10.0.0.2/24
PrivateKey = [XXXX]
DNS = 64.6.64.6
MTU = 1420

[Peer]
AllowedIPs = 0.0.0.0/0, ::/0
Endpoint = [XXXX].glddns.com:51820
PersistentKeepalive = 25
PublicKey = [XXXX]

Any ideas? Feeling discouraged as this has been a working setup that stopped working in the middle of no changes.

2

If cannot check or debug the VPN server, so we try to check the VPN profile and the client router first.

Please confirm whether the router Internet is available, like disable the VPN, can it access webpage?

You can try the MT3000's VPN profile on your phone or PC to test if it is available.

4

Hi! Yes, the router internet is working. I'm currently connected through my MT3000 and the internet works both with the VPN disabled and an OpenVPN profile (NordVPN), but does not work with my WireGuard VPN profile.

5

Under the same Internet access, can the Wireguard client on the laptop be connected?