I am using Enterprise Unlimited Edition for monitoring my network devices. When I first installed PRTG, every thing went fine and I was performing my job very well.
One day I needed to format my Monitoring Server. After formatting, I reinstalled same PRTG Enterprise Unlimited Edition but this time none of the SNMP based sensors are working. I am running Server and probe on the same machine (127.0.0.1). I also tried changing both of them on Interface IP but it did not work.
I have already checked my firewall for UDP ports, PRTGserver communication port and Probe port. All are open. I even checked by SNMPTester and that is working really fine that means there is no blockage for SNMP on the network. I also have another monitoring server with different tool(from different manufacturer) running in same VLAN. and that is working fine.
Whenever I try to add a custom SNMP sensor to it, it returns me "Error# 2003".
Please suggest some suitable trouble shooting so that I boost up my monitoring by adding PRTG.
Thanks and Warm Regards, Nutan.