We are working on a generic http as now you cant use the port 80, did you clear all your certificates in the browser? Send the logs to support and one of use can do like a webex and we should be able to get in asap.
Can you submit a support ticket then enable the Remote support service from the Extended tools in the Console, that way we can remotely fix this or see what is happening.
similar issue here, didn't had any kind of power outage and such, box was running fine till now and the iscsi services still are, but the web access is almost inaccessible, i managed once to login to the active node and saw some alerts about high node load - but the passive is having the same issue