After latest R550 unleashed upgrade this morning, cannot connect to AP

[StefC]

 I have three R550 AP's connected PoE to the switch, and the network has been running fine for months. Ruckus unleashed this morning stated that an upgrade was required. I have done an upgrade multiple times before. The first two APs upgraded fine (green ticks) and the standard message said master AP is rebooting. I had no error messages, but could not connect the wireless network afterwards. As such, I also can't log into Ruckus Unleashed as I am not on the network. I can log on as admin by pointing at the ip address of the master through a browser. All APs show the same version sion 200.18.7.1.302

The wifi on my router still connects to the internet fine - its just the Ruckus aps around the house that have stopped working since the upgrade

How can I get my network back please (I wish I hadn't obeyed the upgrade message now 😉 Many thanks in advance for your help.