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Sophos UTM 9 blocking whatsapp completly

I found in the webfilter log this event:

2017:08:17-17:46:47 sophos httpproxy[5727]: id="0002" severity="info" sys="SecureWeb" sub="http" name="web request blocked" action="block" method="POST" srcip="100.0.0.97" dstip="" user="" group="" ad_domain="" statuscode="502" cached="0" profile="REF_HttProContaInterNetwo6 (Mobiles)" filteraction="REF_HttCffAllowForEit (mobiles )" size="0" request="0xd9145600" url="http://c.whatsapp.net/chat" referer="" error="Received invalid request from client" authtime="0" dnstime="0" cattime="130" avscantime="0" fullreqtime="30038442" device="0" auth="0" ua="Mozilla/5.0 (compatible; WAChat/1.2; +www.whatsapp.com/contact)" exceptions="" category="122" reputation="neutral" categoryname="Instant Messaging"

 

any help

 

Thanks



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  • When using transparent proxy I don't believe you need to exclude it, since it has worked for me for a long time without anything special.

    When using standard proxy it depends on how you configure it, if you just point your clients to the utm at port 8080 then you should also configure your client not to use the proxy for *.whatsapp.com. If you use PAC you can configure it from the PAC file.

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