Arch Linux

dannynexus

Member

Registered: 2025-08-24

Posts: 2

NetworkManager + Sleep = Have to disconnect & reconnect VPN

When my laptop goes to sleep, networkmanager suspends, then when it awakes I have to disconnect and reconnect the vpn it which is quite annoying. I use amneziavpn self hosted with xray protocol and also claude code failed several attempts at providing a fix.

-thc

Member

Registered: 2017-03-15

Posts: 1,059

Re: NetworkManager + Sleep = Have to disconnect & reconnect VPN

It depends on the chosen VPN in Amnezia.

OpenVPN depends on an cryptographic context held alive by client and server via startup and (normally) hourly restarts ("ping-restart"). After a suspend/resume event the VPN application has to issue a "ping-restart" to reestablish the context. In my case (nm-openvpn) it tries to do that 3 seconds before the underlying network connection is up and subsequently fails.

WireGuard "only" sets up a local WireGuard interface and doesn't rely an any pre-connection traffic. It works after suspend/resume like nothing happened.

dannynexus

Member

Registered: 2025-08-24

Posts: 2

Re: NetworkManager + Sleep = Have to disconnect & reconnect VPN

It depends on the chosen VPN in Amnezia.

OpenVPN depends on an cryptographic context held alive by client and server via startup and (normally) hourly restarts ("ping-restart"). After a suspend/resume event the VPN application has to issue a "ping-restart" to reestablish the context. In my case (nm-openvpn) it tries to do that 3 seconds before the underlying network connection is up and subsequently fails.

WireGuard "only" sets up a local WireGuard interface and doesn't rely an any pre-connection traffic. It works after suspend/resume like nothing happened.

I use Xray

-thc

Member

Registered: 2017-03-15

Posts: 1,059

Re: NetworkManager + Sleep = Have to disconnect & reconnect VPN

I missed that in your first post - X-Ray is OpenVPN via TCP/HTTPS looking like a legitimate HTTPS request. So the Amnezia App has to issue a "ping-restart".