It appears that they are finally doing something about this in the 8.7 release. And rather than just having username/password you will actually be able to use cert based auth (EAP-TLS / EAP-PEAP). Fingers crossed it actually works there, we're still ...
I will second Arne's statement of "don't upgrade". After spending a good part of my weekend rebuilding after and upgrade from 2.2 to 2.3 gone wrong, I can safely say that the upgrade process is not the best route. I asked the TAC engineer I was worki...
Nice find on this. I had the same issue and the fix worked for me as well. Just so other people don't have to hunt it down, the default username/password to access that UI is admin/password