Mullvad Wireguard Setup - Constant Disconnection/Disruptions

[DoesItHimself]

I followed the various guides and documentation in order to setup a Wireguard (Mullvad) tunnel that pushes all traffic through it. However I am now getting constant disconnects/disruptions and having web pages fail to load for 10-30 sec and eventually the connection seems to re-establish and work again.

Steps I used:

1. Setup Wireguard Local / Endpoint connection / Interface (no IP)
2. NAT Rule (Hybrid mode) to push all Wireguard interface traffic from local LAN through it

Everything was based on the 2-3 guides/documentation I found and it worked pretty much immediately but the disconnections and disruptions started right away and have persisted for a few hours now.

I'm wondering if anyone else has experienced this and if there is anything obvious that I should look at to fix it.

Thanks in advance.

[mimugmail]

When they fail to load for 10 seconds it sounds like DNS.

[DoesItHimself]

Some are longer -- It was upwards of a minute at times. I am using the standard Mullvad recommended DNS server and whenever I use the regular Wireguard client I do not have this issue. Same server on the local desktop client as I setup on OPNSense.

[mimugmail]

So OPN uses mullvad dns, and your internal clients use which one?