I "switched" back to the old one - everthing is working fine (with EXACT THE SAME CONFIG!). This buggy one will be shipped back... maybe next year if there is a new revision available and they fixed...

@GRL Understood! But its just a "small" network (30+ Devices) at my home and not all clients are just connected to the LAN. I dont know what will happen if I create an ACL and put it on the AP Port -...

@St3ini nope, sorry, it was just a hiccup... Still no connection possible. Client just got an APIPA If its want to connect. And Port Binding is not a solution for me, as I have a mixed setup and the...

@GRL If found the issue right now... The rule to block the internal clients on the same VLAN was blocking (I guess) also the Interface connection. After removing these rule, connection can be...

@D-C I'm using the logging-function, nothing hits the rules, if I try to connect to the VLAN. (via WiFi and LAN) If I disable the ACL, connect to the VLAN and enable the ACL again, the counter starts...

@D-C I've removed the rule and tested it with the same behavior... Not connecting anymore to the Network. I noticed something different in the UI: The Fragment element ist missing. (Left is the new...