You should control that all the stations use the same BDE NET file, and that this file is placed on a mapped drive (no UNC names, you should use exactly the same letter in every station, say N

which should then contain a folder, which in turn will contain pdoxusrs.net, something like that:
N:\NETDIR\PDOXUSRS.NET
Remember, all the stations the EXACT same path to .NET file.
Bye!