I have a number for WR11XT modems that all have a similar set of stateful packet inspection rules at all sites. So far as I can tell I'm allowing all outbound traffic with statful inspection... and I have various rules for inbound traffic where there isn't an outboud request...
outboud I use:
pass out break end inspect-state
I don't have any other "specific" rules to allow "google/gmail" traffic inbound...
At most locations this works fine, I'm able to use gmail, google docs, hangouts, etc in chrome. However there are a few locations where gmail just doesn't work and I get ERR_TIMED_OUT from the web browser. All locations are using Verizon... and locations are spread across the US (CA, CO, IA, TX, ME, MD, OR, PA, etc).
Any ideas?