mechbas -5 Posting Pro

The LAN which was working fine 3 days ago is currently unaccessable for unknown reasons. Two nags that keep cropping up are "The list of servers for this workgroup is not currently available.", and for SharedDocs on XXXX (this machine) I get "Network path is not available". Winsock/winsock32 seem to be fine. I could disable the 3d pty. firewall but most decidedly NOT while online. I could understand that a server were not available due to some hardware conflict such as a bad connection on one or the other but not 2 at the same time. I've checked or changed a number of settings but to no avail.