nrpe_nt.exe not starting after server reboots



I recently built two servers, exactly the same and set up nrpe the same on both. On one of them however, nrpe doesn’t start autmatically. I have to manully restart the nagios remote plugin executor.

I see this error in the event viewer:

NRPE_NT: bind() failed with error 10049

Can anyone help me shed any light on this please as I cannot understand how this works on one server but not the other. I’ve tried uninstalling nrpe_nt.exe and then copying it over from the working server and installing it again and it still hasn’t solved the issue.

Any help/info appreciated.