Webex has been working fine until just recently. We upgraded to 22.214.171.124-83n 2 weeks ago, and this last Friday we started getting calls webex wasn't working. There's only two admins and we didn't make any changes. I've since simply added it to the trusted domain list and it's working now. This is the 2nd time this year something like this happened after an update. Last time Youtube it was a YouTube restricted mode issue caused by the sonicwall. I haven't contacted support yet. Anyone have any thoughts why all of sudden Webex is being blocked?