Sophos SG: An error ocuured while handling your request / Host not found/ Web Protection

Question

Hello, 
 
 we are trying to access an internal web page via a URL. When we try to access the page we get the following error message 
 2023:01:05-11:23:28 utm-1 httpproxy[7225]: id="0002" severity="info" sys="SecureWeb" sub="http" name="web request blocked" action="block" method="GET" srcip="IPADRESS" dstip="" user="" group="" ad_domain="" statuscode="502" cached="0" profile="REF_HttProContaInterNetwo4 (Customer Network)" filteraction="REF_DefaultHTTPCFFBlockAction (default profile)" size="2506" request="0xd7a40a00" url="http.//website" referer="" error="Host not found" authtime="0" dnstime="164" aptime="116" cattime="144" avscantime="0" fullreqtime="1568" device="0" auth="0" ua="Mozilla/5. 0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/ Safari/537.36" exceptions="" 
 What other settings can we check?

Vivek Jagad · Answer

Hello admin_idl ,

Thank you for reaching out to the community, in the logs we noticed that the status code is 502. A 502 bad gateway message indicates that one server got an invalid response from another. In essence, you've connected with some kind of interim device (like an edge server) that should fetch all of the bits you need to load the page. Something about that process went wrong, and the message indicates the problem. Request you to check with the ISP or meanwhile if you have another ISP you can test with that ISP too.

Vivek Jagad · Answer

by adding src ip 172.31.101.11 under the Filtering options > MISC > Transparent Mode Skiplist > Skip Transparent Mode Source Hosts/Nets
It's working right, let me know if you have any further quires !~