single Ruckus R350 always in Provisioning State

[goech]

I did set up a single ruckus r350 with unleashed and everything is working as expected. I have 3 Wifis in different VLANs and handle the management via the native VLAN1. I can access the management and all the Wifis work as expected in the different VLANs. But somehow the in the management website shows disconnected/provisioning - internet connection is there. Is it because I only have one R350 or do I have to up something more? 
I allowd Port 80/443 and 123 outbound on the firewall for the AP. One thing I see is there are some request from the AP on port 60000 but I dont know what this is - allowing it also didnt improve the situation. One thing I do, I use ubnound as DNS - maybe there could be an issue?

I already made an firmware upgrade to 200.18.7.101.244 and did an Firmware reset. Still the issue persists. Any help would be appreciated.

[goech]

When I Switch to the Acces Points Page it tells me "Provisioning".
I only have one master in the Network. I did restart the AP many times and I also did a factory reset on the Access Point but the problem still persists.
For Information what happened when I upgraded: When I did the upgrade first via Network it did fail, then I uploaded the binary blob directly and it did upgrade (saw the new version appear) but it didnt quit the mode (was still showing the state "downloading update".

[goech]

So after a month I still have this problem are there anh more ideas how to fix this?