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Problems installing PRTG on Windows 2008 r2 Server



Hi, I can't get PRTG installed - any suggestions please. I've searched through the knowledge base but been unable to resolve.

Get stuck at the

Please wait until PRTGs web server is running...... Connecting to: failed...: HTTP/1.1 401 Unauthorized

Then get the message

PRTG Web Server did not start within 60 seconds

Any help would be much appreciated

installation problem prtg

Created on Apr 12, 2018 11:58:43 AM

2 Replies



Hi there,

Please make sure that no AntiVirus is preventing PRTG from starting. Please also make sure that there is no other webserver running on the same server as PRTG. Additionally, check the "Web Server"-Tab in the "PRTG Administration Tool" on the Core Server that the settings are correct.

Best regards.

Created on Apr 13, 2018 10:21:27 AM by  Dariusz Gorka [Paessler Support]



Thanks, all working now

Created on Apr 13, 2018 2:53:30 PM

Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.