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Sophos UTM 9 - This site can’t be reached / took too long to respond / Connection to server timed out

Good Afternoon,

 

I am having difficulties with handful of websites not loading, giving one of the following error messages, 

  • This site can’t be reached
  • Took too long to respond
  • Connection to server timed out

Websites

These sites are working outside of this network.

 

Sophos Sepcs:

Model: SG115w

Subscriptions: Base Functionality, Email Protection, Network Protection, Web Protection, Webserver Protection, Wireless Protection, Endpoint AntiVirus

Firmware version: 9.411-3

 

Error:

2017:07:12-12:26:42 utm httpproxy[4018]: id="0002" severity="info" sys="SecureWeb" sub="http" name="web request blocked" action="block" method="CONNECT" srcip="172.16.1.2" dstip="194.154.170.15" user="" group="" ad_domain="" statuscode="500" cached="0" profile="REF_DefaultHTTPProfile (Default Web Filter Profile)" filteraction="REF_DefaultHTTPCFFAction (Default content filter action)" size="226" request="0xe2589e00" url="personnelchecks.employmentcheck.org.uk/" referer="" error="Connection timed out" authtime="0" dnstime="7" cattime="34956" avscantime="0" fullreqtime="127313170" device="0" auth="0" ua="Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.115 Safari/537.36" exceptions="" overridereputation="1" category="105" reputation="trusted" categoryname="Business"

 

Screen Shot:

Testing Completed So Far

So Far I have completed the following:

  1. Removed the web filtering all together
  2. Added Whitelisting 
  3. Added Exceptions to the firewall
  4. https://community.sophos.com/products/unified-threat-management/f/web-protection-web-filtering-application-visibility-control/74018/categorization-sometime-fails---long-loading-time-of-website

I have reverted all this testing back to the original state

 

Previous Error

Previously we had an error with our ISP forwarders being incorrect however this was months ago and seems to not be the reason for this error.

 

I am at a loss as to where this is getting blocked or why it is not working properly, any help would be much appreciated.

 

Kind Regards

 

Peter



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