Hi,

if I add a syslog receiver sensor, so it works without problems.

After the restart I get an error: Could not open port 514 (code: PE245)(Could not bind socket. Address and port are already in use.)

if I add a sensor again, it works without problems.

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Any other syslog tools running on the PRTG server that is not PRTG? Like KiWi Syslog Server?


Nov, 2016 - Permalink

No other software, only PRTG core and probe.


Nov, 2016 - Permalink

Probably it's simply because the port is still bound by windows internally, hence PRTG can't occupy it.
netstat -anob should reveal what process it is - probably the PRTG Probe.exe. The sensor should work after a few minutes, can you verify that? Does a restart of the probe service also solve the issue?


Nov, 2016 - Permalink

I find only this.

C:\Windows\system32>netstat -anp udp | find ":514" UDP 0.0.0.0:514 *:*

C:\Windows\system32>netstat -anp tcp | find ":514"

C:\Windows\system32>

If I restart probe service, error still persist.


Nov, 2016 - Permalink

Hm, interesting. Could you try a different port for testing purposes?


Nov, 2016 - Permalink