Hi The demon slick, also my three units sometimes have the red blinking light, but I've checked on slushpool and it return me correct values ( more than 9.00th/24 hours each one).
I've only the web ui that don't work.
try to force a login on port 443 (https) sometimes it doesn't auto redirects from HTTP to https
and check status there could be an alarm for several things like temperature, the speed of fan or error rates of the packets etc, not necessarily of ASIC alone as you are saying