@Eg64 Thanks for the hint. I have already read that and the workaroung with changing the mtu on all clients is not the fancy way to do it. I mean imagine need to change MTU on 1000 Clients. We found...

Where can I Download Beta. What is inside the Beta? Can it ruin something? When will be the official release with the fix?

did you get an answer? We are also watiing for the new firmware

Yes we are also waiting. Is it even possible to degrade from 3.1.6 to 3.1.5 ?

We are having the issues right now. Could we get the Beta release. What is included in the Beta Release? We usually do not use Beta versions for productive environments.