Hello,
I am having trouble diagnosing this particular issue with Microsoft Teams. The messaging function isn't working as messages aren't sent ("Failed to send" error message). After checking the web filtering logs, i found this out:
2019:03:13-09:12:20 utm-bomare-2 httpproxy[6214]: id="0002" severity="info" sys="SecureWeb" sub="http" name="web request blocked" action="block"
method="CONNECT" srcip="192.168.1.168" dstip="40.74.62.125" user="" group="" ad_domain="" statuscode="500" cached="0"
profile="REF_HttProContaInterNetwo (VIP_Profile)" filteraction="REF_HttCffVipwhfilte (VIP_WHFilterAction)"
size="517" request="0x1b020c00" url="emea.ng.msg.teams.microsoft.com/" referer="" error="Connection timed out" authtime="0" dnstime="2"
cattime="128" avscantime="0" fullreqtime="127255911" device="0" auth="0" ua="" exceptions="application" category="122" reputation="neutral"
categoryname="Instant Messaging" application="micrsoft" app-id="1151"
Apparently, the request was blocked because of a connection time out error. I don't have AV scanning enabled on any of my filter actions. I tried skipping the proxy, same thing. I even disabled web filtering and application control, still same problem. Could it be a DNS issue? (we don't have an internal DNS server, we're using the UTM as gateway and DNS).
Any suggestions?
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