Invalid Server Response Only on Home Network

[grokshot]

I am using EWS to connect to my work. Has worked fine for a very long time. Today when I try and refresh I get invalid server response. However, if I disconnect from my home network and just use my cellular connection it works just fine. The second I connect back to my home network it doesn't work. Not sure what to look for here. Have rebooted Modem / Router / Switches.

Any help or ideas would be greatly appreciated.

[Kostya Vasilyev]

Sounds like your home network is blocking something (maybe it filters all HTTPS traffic)?

EWS runs over HTTPS. Please check if your router has some sort of "security / privacy traffic filter" and maybe there is a way to "exclude" / "whitelist" your Exchange server.

Other than that, a debug log always makes it easier to diagnose issues (please see the link in my signature, just below).

[grokshot]

This morning it started working. Definitely something I am going to have to watch for in case it happens again. Thank you for the fast response.