The Proxy received an invalid response

[hugo2069]

Have a user that can replicate this message on demand when accessing a website.

Outside of our network, or by bypassing the proxy, the issue does not occur.

I have a packet trace file but did not see how to attach it to the post.

[aloksard]

Hi,

Hope you are doing well.

The 502 message is used by the McAfee Web Gateway to alert a client that a connection to the destination could not be established or that the destination provided an invalid response

Please refer below link for more info on this:-

https://community.mcafee.com/t5/Documents/Web-Gateway-Understanding-HTTP-502-s/ta-p/554073

Request you to please provide me the problematic URL in order to check at my end once.

Also please provide output of below command from MWG CLI:-

wget http://abc.com

wget https://abc.com

NOTE:- abc.com is an example here, change that with the actual problematic website , if the website is on http, then provide output of command wget http://abc.com

Regards

Alok Sarda

[hugo2069]

Alok,

Thank you for the reply.  Below is the output from the wget command.

wget https://time.roberthalf.com/psc/hrfsprd/EMPLOYEE/HRMS/c/RH_TC_CAND.RH_TC_CA_HOME.GBL
--2019-05-13 08:25:21--  https://time.roberthalf.com/psc/hrfsprd/EMPLOYEE/HRMS/c/RH_TC_CAND.RH_TC_CA_HOME.GBL
Resolving time.roberthalf.com (time.roberthalf.com)... 204.75.127.154
Connecting to time.roberthalf.com (time.roberthalf.com)|204.75.127.154|:443... connected.
HTTP request sent, awaiting response... 302 Moved Temporarily
Location: https://time.roberthalf.com/psc/hrfsprd/EMPLOYEE/HRMS/c/RH_TC_CAND.RH_TC_CA_HOME.GBL?& [following]
--2019-05-13 08:25:22--  https://time.roberthalf.com/psc/hrfsprd/EMPLOYEE/HRMS/c/RH_TC_CAND.RH_TC_CA_HOME.GBL?&
Reusing existing connection to time.roberthalf.com:443.
HTTP request sent, awaiting response... 302 Moved Temporarily
Location: https://time.roberthalf.com/psc/hrfsprd/EMPLOYEE/HRMS/c/RH_TC_CAND.RH_TC_CA_HOME.GBL?&cmd=login&erro... [following]
--2019-05-13 08:25:22--  https://time.roberthalf.com/psc/hrfsprd/EMPLOYEE/HRMS/c/RH_TC_CAND.RH_TC_CA_HOME.GBL?&cmd=login&erro...
Reusing existing connection to time.roberthalf.com:443.
HTTP request sent, awaiting response... 200 OK
Syntax error in Set-Cookie: PS_TOKEN=; domain=; expires=Thu, 01-Jan-1970 01:00:00 GMT; path=/ at position 19.
Length: 885 [text/html]
Saving to: âRH_TC_CAND.RH_TC_CA_HOME.GBLâ

[aloksard]

Hi,

Hope you are doing well.

The issue is not reproducible at my end.

You can try removing Via/XFF header  for this particular URL.host time.roberthalf.com  and then check.

https://community.mcafee.com/t5/Documents/Web-Gateway-Via-and-X-Forwarded-For-Headers-Proxy-Loop/ta-...

If issue still persists, then I suggest to open a case with support team so that we can do further troubleshooting.

Regards

Alok Sarda