Can someone help me to resolve this Error 0x80070035 when mapping a Buffalo

Dear Reader,
I need a help to resolve this issue when I try to hook up to my Buffalo LinkStation 500GL.
– My XP based PC running with all updates is OK and no problems using WLAN to mount it.
– This error started after I installed SP1 for Win7 on my laptop also using WLAN.
– I can ping the LS Buffalo using the NAME and IP address from the W7, but when I try it as a Net-Mounted Drive using name or IP I get this error.
I have tried many things like starting in SAFE/NET Mode and also deactivaited the FireWall, McAfee but no luck at all.
I would appreciate to get some hints and kinks to fix this issue.
With kind regards,
J??nas

Senior, IT CSA for AFIS Systems.