A1300 wireguard no internet

Technical Support for Routers VPN, DNS, Leaks
1

Hello, I have configured VPN client using wireguard protocol. It was working like a charm, but a couple of days ago after update to the latest firmware the vpn client started repeatedly restarts with no internet access.
Could You please help me to clarify what is going on!
Device: GL-A1300 Slate Plus,
firmware: 4.5.17
I have following logs

Sat Aug 24 08:03:00 2024 daemon.notice netifd: wgclient (27556):    * Rule 'wan_in_conn_mark'
Sat Aug 24 08:03:00 2024 daemon.notice netifd: wgclient (27556):    * Rule 'lan_in_conn_mark_restore'
Sat Aug 24 08:03:00 2024 daemon.notice netifd: wgclient (27556):    * Rule 'out_conn_mark_restore'
Sat Aug 24 08:03:00 2024 daemon.notice netifd: wgclient (27556):    * Zone 'lan'
Sat Aug 24 08:03:00 2024 daemon.notice netifd: wgclient (27556):    * Zone 'wan'
Sat Aug 24 08:03:00 2024 daemon.notice netifd: wgclient (27556):    * Zone 'guest'
Sat Aug 24 08:03:00 2024 daemon.notice netifd: wgclient (27556):    * Zone 'wgclient'
Sat Aug 24 08:03:00 2024 daemon.notice netifd: wgclient (27556):  * Set tcp_ecn to off
Sat Aug 24 08:03:00 2024 daemon.notice netifd: wgclient (27556):  * Set tcp_syncookies to on
Sat Aug 24 08:03:00 2024 daemon.notice netifd: wgclient (27556):  * Set tcp_window_scaling to on
Sat Aug 24 08:03:00 2024 daemon.notice netifd: wgclient (27556):  * Running script '/etc/firewall.nat6'
Sat Aug 24 08:03:00 2024 daemon.notice netifd: wgclient (27556):  * Running script '/etc/firewall.vpn_server_policy.sh'
Sat Aug 24 08:03:00 2024 daemon.notice netifd: wgclient (27556):  * Running script '/etc/firewall.swap_wan_in_conn_mark.sh'
Sat Aug 24 08:03:00 2024 daemon.notice netifd: wgclient (27556):  * Running script '/var/etc/gls2s.include'
Sat Aug 24 08:03:00 2024 daemon.notice netifd: wgclient (27556):    ! Skipping due to path error: No such file or directory
Sat Aug 24 08:03:00 2024 daemon.notice netifd: wgclient (27556):  * Running script '/usr/bin/gl_block.sh'
Sat Aug 24 08:03:00 2024 daemon.notice netifd: wgclient (27556): Failed to parse json data: unexpected character
Sat Aug 24 08:03:00 2024 daemon.notice netifd: Interface 'wgclient' is now down
Sat Aug 24 08:03:00 2024 daemon.notice netifd: Interface 'wgclient' is setting up now
Sat Aug 24 08:03:00 2024 user.notice firewall: Reloading firewall due to ifdown of wgclient ()
2

Which VPN provider do you use?
From which country do you want to conect?

3

azirevpn
from Rusland to Germany (de-fra.azirevpn.net:51820)

4

Russia blocks WireGuard on default ports. Try to choose another server (or VPN provider) or switch to a client application, they can often try to hide the traffic; this isn't possible on the router currently.

5

might it be an firmware update issue? but logs there are some damaged/missing files. not looks like blocking by port number or heandshake

wgclient (30072):  * Running script '/var/etc/gls2s.include'
wgclient (30072):    ! Skipping due to path error: No such file or directory
wgclient (30072):  * Running script '/usr/bin/gl_block.sh'
wgclient (30072): Failed to parse json data: unexpected character
wgclient (30072): cat: can't open '/tmp/run/wg_resolved_ip': No such file or directory
6

I have been done the firmware rollback to v.4.5.16 and now wireguard is up and running

Fri Aug 30 14:43:52 2024 daemon.notice netifd: Interface 'wgclient' is setting up now
Fri Aug 30 14:43:53 2024 daemon.notice netifd: wgclient (11823): RTNETLINK answers: Permission denied
Fri Aug 30 14:43:58 2024 daemon.notice netifd: Network device 'wgclient' link is up
Fri Aug 30 14:43:58 2024 daemon.notice netifd: Interface 'wgclient' is now up
Fri Aug 30 14:43:58 2024 user.notice firewall: Reloading firewall due to ifup of wgclient (wgclient)
Fri Aug 30 14:43:59 2024 user.notice wgclient-up: env value:T_J_V_ifname=string J_V_address_external=1 USER=root ifname=wgclient ACTION=KEYPAIR-CREATED...