The other day I tried to use a remote printer in the home which is known to the Vista 64 Laptop via its system host and share name and the print request failed.

I tested the network connection using a defined short cut which also uses the name and sharename. This offered me a login screen which when I presented a valid set of credentials stated that the login was un-successfull. 

I have changed the shared folders and printer to use the tcp/ip addresses and these services now work. I know that I have taken some updates on the Vista 64 system. I have tested the name defined connection on the blue & red  Dell vista laptops and these still work. NB I am using Symantec they use something else.

What could the problem be?