Windows 7 - network error message: "Error code: 0x80070035". No file shareing help

I have had my vista pc and my windows 7 (basic) net book setup to let me share files (through an Netgear DG834PN Route) for around 18 months with no problems.

However as of 3 days ago I can no longer do this and non of the network tools can fined or solve the problem. I can uses the internet though my rooter, see my vista pc on the network as well as the media streaming (windows one) thing.

I can also access my net book hard drive from my pc no problem and transfer/delete files as well?

When I do try to connect the following error message is given:
"Error code: 0x80070035
The network path was not found"

How can I fix this?
　
P.s. I know windows 7 basic has not create home group ability, but it worked with the one I made on vista. I can not afford to upgrade my copy of windows 7 so that is totally out of the question.

P.p.s I am a dummy at this stuff.

I have tried Enable NetBIOS over TCP/IP, no joy!!

Welcome to SF,

Firewall might be the problem, you'll have to configure it to allow access to "trusted zone".
On some Firewalls or Security Software you might need to completely uninstall them.