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Problem with Proxy Authorization

Modified on 2025-06-10 22:42:56 +0200

I have installed PRTG yesterday and it works fine. There is just one problem with the HTTP Sensor. It Shows the red exclamation mark and says 'HTTP/1.1 407 Proxy Authorization Required'. The Proxy Settings are configured correct. We are useing an Sophos UTM Firewall maybe this is the Problem.

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Hello,

Thank you for the KB Post. Please do upload and share some screenshots showing the settings of the sensor as well as the configured Proxy Settings. Thank you!

Also, which exact PRTG version are you running?

best regards.

Dec, 2015 - Permalink

Unfortunately, the screenshot does not load, can you please upload it on a different hosing platform?

Dec, 2015 - Permalink

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Problem with Proxy Authorization

Article CommentsAttention: This article is a record of a conversation with the Paessler support team. The information in this conversation is not updated to preserve the historical record. As a result, some of the information or recommendations in this conversation might be out of date.

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Attention: This article is a record of a conversation with the Paessler support team. The information in this conversation is not updated to preserve the historical record. As a result, some of the information or recommendations in this conversation might be out of date.