Disconnecting from VPN causes wired connection to lag until reconnection

General system Newbie
1

When I disconnect from VPN connection via default network manager, my main wired connection becomes slow and unresponsive: pages takes a lot longer to load, rather than low bandwidth it seems to be like ping taking a dozen seconds. It goes away after disconnecting and reconnecting wired connection.

Inxi output: https://paste.linux.chat/?ee75b9b6b5994dd4#24FhTxBLBgB4TvrXsz1qJtCH5smTBPwpo6nKyFStesVg

Could there be done anything about it?
It’s been happening for about two years since I’ve started using EOS.

2

(opinion only) I suspect it’s either the DNS settings not being properly reverted or a route issue.
Good luck.

3

I think it is likely but I have no idea what can be done about it.
Reconnecting every time is not fun.

4

Well, dig in, find out exactly what the problem is. Then do whatever is needed to fix it (configuration or scripting).

5

I did that and failed, at best I can make a script that does the reconnection after VPN is disconnected but it is hacky.
So there is my hope that someone might know something.