It sounds like one of your network adaptors is causing a problem. I would recommend disabling all adaptors, enable one at a time and then see if you still get the error. If this fixes the problem you can restrict NetworkComms.Net to only use specific adaptors using https://networkcomms.net/api/html/P_NetworkCommsDotNet_Tools_HostInfo_RestrictLocalAdaptorNames.htm
Let me know how it goes.