NServicebus Publisher/Distributor Unable to communicate with all subscribers/workers?

Question

We have one distributor/publisher (NSB community version, which is on a domain but recently changed to workgroup mode due to some issues), which communicates to two workers on two different servers (on domain). All of a sudden it is not sending any work to one of the workers where as the worker has sent several acknowledgements which were unacknowledged by the publisher.

Please help - whether this is a bug in NSB host or am i missing something here?

Answer 1

Finally found the issue, it is not related to Nservicebus, rather it is related to network. The servers were unable to communicate each other due to some security/firewall problems.

Solution is: Adding the host entries of subscribers (worker servers) in the publisher (distributor) has solved the same.