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Is there a workaround for this error HTTP/1.1 401 Unauthorized

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Setting up a http probe i continue to get this error. Even when i know the correct account is being used.

401 http unauthorized

Created on Oct 18, 2011 1:30:33 PM



6 Replies

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Hello,

you see this on an HTTP Sensor? Is there a Proxy involved in the scenario?

Depending on the type of web page you are trying to access with an HTTP sensor, there might be a form that you need to enter credentials in. In this case you may need to do this in a POST format in the sensor settings to gain access to the site first.

best regards.

Created on Oct 18, 2011 3:55:01 PM by Torsten Lindner [Paessler Support]

Last change on May 7, 2014 5:10:05 PM by Gerald Schoch [Paessler Support]



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Thanks for the reply, This is a virtual address of a netscaler that load balances the url between 2 servers

Created on Oct 19, 2011 3:48:00 PM



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That does not really answer the questions I'm afraid, but presuming that it's an HTTP Sensor, once again, is there a proxy involved here (either in the network itself, or maybe falsely entered in PRTGs settings)?

Created on Oct 21, 2011 1:17:53 PM by Torsten Lindner [Paessler Support]



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sorry no proxy involved, we have other http sensors working, only this one seems to have an issue.

Created on Oct 21, 2011 1:22:07 PM



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What happens if you access the URL entered in the sensor from the PRTG host with a browser?

Created on Oct 21, 2011 3:43:13 PM by Torsten Lindner [Paessler Support]



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that works fine

Created on Oct 21, 2011 3:45:14 PM




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