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Webinterface is unstable since upgrade



Since we upgraded to latest version, we've been noticing the following error. Our NOC, which just displays maps, does not get this error. However if we start to navigate around, look at specific devices, etc, we start seeing the error quite frequently.

Lost connection to PRTG server!

Can not continue!

Server: prtg.jamesonbank.com URL: /controls/quickobjectpauser.htm?id=3605&_=1369411724860 (PE1114) Time: 12:17:56

connection server web-interface

Created on May 24, 2013 4:22:31 PM

3 Replies



please go to your PRTG server and open this file with an editor

C:\Program Files (x86)\PRTG Network Monitor\webroot\javascript\scripts_custom.js

the file is usually empty.

please add this line


and save.

A server or core restart is not required

Then please use Ctrl F5 in your browser session for a complete reload of the PRTG interface.

Please let us know if that helped.

Created on May 27, 2013 10:12:00 AM by  Aurelio Lombardi [Paessler Support]



I added the line and did the hard refresh, but we are still getting errors unfortunately.

{{{Lost connection to PRTG server!

Can not continue!

Server: prtg.jamesonbank.com URL: /api/getstatus.htm?id=0&_=1369664454358 (PE1000) Time: 10:46:49}}}

Created on May 27, 2013 2:50:01 PM




please open a ticket by sending a mail to

[email protected]

Could you please forward us your system log files for analysis? You can find the same under

XP/2003: C:\Documents and Settings\All Users\Application Data\Paessler\PRTG Network Monitor\Logs (System)

Vista/2008: C:\ProgramData\Paessler\PRTG Network Monitor\Logs (System)

Please send the Logs(System) folder as a zip file if possible.

If you have changed the location of the data folder in the past or if you can not find current log files in the above location, please check your data path in the PRTG Server Administrator Tool on the PRTG server.

if your PRTG web interface can be accessed from outside please send the URL and login credentials as well so that we could take a look at it ourself.

Created on May 28, 2013 8:36:53 AM by  Aurelio Lombardi [Paessler Support]

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.