I’ve installed CFW on freshly installed Windows 10, and Outlook 2013 and latest Firefox are exhibiting connectivity problems. Specifically, Outlook can’t connect to outlook.com, and Firefox fails to synchronize data using its “Sync” feature (regular browsing works). Both of these problems are fixed if i disable the firewall.
My set of global rules is fairly standard - blocking all incoming connections that aren’t from localhost or LAN, allow all outgoing. enabling “block and log” doesn’t reveal any blocked activity, which leads me to believe the problem is somewhere in the application rules, however i can’t see anything wrong with them - i don’t have many “block” rules, and those that are engaged have nothing to do with either Firefox itself, or any Windows services (which might be suspect for Outlook).
I have only recently upgraded to both CFW 10 and Windows 10. Previous installation of Windows 7 and some older COMODO version (no idea which specific version, sorry) did not have such problems. Defense+, Antivirus, Viruscope, Sandboxing and Web filtering are disabled.
What may be relevant is that both Outlook and Firefox are running inside a Sandbox (using Sandboxie), but i’m pretty sure connectivity problems persisted even when running outside sandbox. I’ll double-check this when i get home.
The firewall is set to Custom Ruleset, so anything no explicitly allowed or denied will get asked, however the firewall was running in Training Mode for a while, so it automatically created rules for both Outlook and Firefox. To be safe, i removed them and made sure Firefox/Outlook asked for access, and they did - that didn’t help resolve the problems i’m having.
I’m pretty sure the culprit is a misconfigured application rule, but i’m not sure where else to look, since i’ve already checked all application rules and determined them to be OK as far as i can tell. In the meantime, i’d appreciate any pointers as to where else i could look for a solution and what else i could try.
