OpenVPN keeps reconnecting after update 22.7.11 to 23.1.

[Mr. Happy]

I have 2 OpenVPN clients configured.
On 22.7.11 they stayed connected (according to the webinterface anyways), but on 23.1 they keep reconnecing every few minutes.
Besides updating nothing changed.
Also the time it takes to connect the vpn seems way longer than before.
Everytime a vpnclient drops the connection I get a notification. At v22 I received none, now my mailbox gets flooded.

Is there a setting I had to alter (and obviously forgot) or is there another explanation?

TIA!