Please share your views for this???
Not resolvable (aka 502s) log entries are technically allowed requests. The MWG received the request, allowed it, and attempted to connect to the server but it failed.
I do agree that it would be nice to report on 502s more easily (much like allowed, blocked, etc...). It wouldn't be a bad idea to file a PER McAfee KnowledgeBase - How to submit a Product Enhancement Request (PER) so this was available fore the Quick View (summary) info.
To do it currently in the Reports (detailed) tab you can filter on the "HTTP Status", then exclude 502s:
Thanks Jon for your update!!
I will file a PER surely