Wireguard not working

[xenon2008]

Good evening,

I set up Wireguard on my OPNSense a few weeks ago, which has worked without any problems on all of my clients so far.
But today I noticed that no matter which client and whether Windows or Android... this error appears very often in the log: "Handshake did not complete after 5 seconds"

I only came across the error in the log because I noticed that I suddenly couldn't reach the internal network that I wanted to reach through the tunnel....

The funny thing about it is that the error appears every few seconds & out of the blue I can then access the web interface of my NAS for a few seconds... during that time the error doesn't appear in the log... and shortly afterwards it does The connection is lost again, which means I can no longer access the web interface of my NAS.
Although the VPN tunnel is still successful...


A few days ago (unfortunately I can't say exactly when) everything was working without any problems.
I haven't changed anything in the VPN config since then! - but to be honest I can no longer say with certainty whether I did a firmware update from Opnsense myself in between.

I had already done a little research online, but unfortunately all the suggestions I've found so far haven't provided the solution.

Does anyone here have an idea as to what this could be?

Sorry my English Skills are not so good, so i used Google Translate 

Thanks & LG
xenon

[xenon2008]

Found the error

IPS was to blame...
If I deactivate these 4 rules or set them to "Alarm", everything works fine again

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