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Problem with checking external websites with proxy authentication



Hello all,

We have PRTG V x64.

We're trying to monitor an external website that requires us to go through our proxy server (= FortiGate 500E). We've setup "Advanced Http" sensor and have configured the proxy settings in the appropriate place with a user that has connection to the Internet, but the sensor always responds with:

"HTTP/1.1 407 Proxy Authentication Required"

Looking at the FortiGate logs, we can not find any request to google.com from the IP of the PRTG server.

Monitor un internal website is OK.

Many thanks for any information about this issue.

http-sensor proxy-authentication prtg

Created on Sep 2, 2022 12:56:52 PM

2 Replies



The HTTP Advanced Sensor has an option to enter the username and password in the settings, this is for the proxy. Can you add this on the sensor settings?

Created on Sep 8, 2022 5:33:17 AM by  Jonathan Mena [Paessler Technical Support]



It would be better to get screenshots and more details on a support ticket. You can email at [email protected]

Created on Sep 14, 2022 7:23:07 AM by  Jonathan Mena [Paessler Technical Support]

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