I can suddenly no longer access PRTG's web-interface from remote hosts (local network, internet) using it's IP or DNS name anymore.
I can however access it locally on the PRTG server and monitoring is also still working.
What's the issue and how can it be fixed?
Article Comments
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 As a result, some of the information or recommendations in this conversation might be out of date.
In some situations (IP Address change/update, NIC Driver Uptime, Virtual machine Integration Services, NIC addition, et cetera) PRTG may revert it's web-server address binding configuration.
In such cases, please proceed with the following:
- Open the PRTG Administration Tool on the PRTG Core Server.
- Head to the Web Server tab.
- Select the proper IP Address(es) for PRTG's Web Server. (It will likely be set to Localhost)
- Save and Close (Will restart PRTG with the new settings).
- PRTG should be reachable once again.
It's worth also checking the Probe Settings for Monitoring and Core Server tabs as they also hold settings for address bindings.

Jul, 2015 - Permalink
In some situations (IP Address change/update, NIC Driver Uptime, Virtual machine Integration Services, NIC addition, et cetera) PRTG may revert it's web-server address binding configuration.
In such cases, please proceed with the following:
It's worth also checking the Probe Settings for Monitoring and Core Server tabs as they also hold settings for address bindings.
Jul, 2015 - Permalink