I have upgraded my Vsz to 18.104.22.168.510 and upgraded the APs to 22.214.171.124.709. After the upgrade i noticed that almost every AP had a high percentage of connection errors. I let it go for several days and thought i still had a lot of clients connected so it must be working. In the events I see a lot of Force DHCP disconnects. I did not make any changes to that but did double check the settings. Some wlans were not enabled and some set to anywhere from 5-15 seconds. Downgraded the firmware to 126.96.36.199.1026 and the connection errors went away. Has anyone seen this and have any ideas why i am seeing this.
I had this with R710 APs, on 3.5.1 after migrating them from ZD 9.13. After a couple of hours of head scratching, checking everything was working and looking for an issue. I rebooted the APs and all the errors cleared. *shrugs*