DCE discovery process stuck, cannot remove or add device

[sesa350764]

Hi Team,

A client of ours had a UPS NMC pop and have now replaced the NMC with a new one. They have given the new NMC the same IP address as the old NMC and were hoping to get the DCE monitoring restored.

They proceeded to do a rediscovery of the new NMC and due to the old device with the same IP still being in monitoring they could not discover the device. However, we could see an new entry in monitoring with the same IP address. 

This discovery did not complete and the delete device button is disabled/greyed out. 

We have tried to delete the original device but the discover is still hanging. We have tried re-running the discovery with no luck. Even rebooting the server and clearing the C:\>Users\Username\.isxc did not assist. 

We have now also tried to change the IP on the NMC to bring it into monitoring while we resolve the stuck device but not able to discover it on a different IP. All other settings have been checked and confirmed.

The client is running DCE 7.8.1 on a physical Enterprise Server.

Any suggestions?

Regards

Kevin