provider sql network interfaces error 26 - error locating

Question

Hi,
i have to connect server sql db in my local system sql ...

when i am using LAN connection great...

when i am using reliance dongle the error will come like ...: provider sql network interfaces error 26 - error locating server/instance specified sql server 2008

i have tried lot of ways but i am not resolved this problm..


plz any have expertise on this ..plz help me...