One computer on a home network can't be accessed by the others

[anasttin]

Hi and thanks in advance for the help.

I've got 3 identical PC's that were bought and configured at the same time, all running

Windows 7 off a Netgear router.

Though all 3 machines can successfully ping each other, one machine can't be accessed by

the other two through windows explorer meaning it can't participate in LAN games or share

files with the other 2 machines.

I also seem unable to register my copy of Starcraft II because it doesn't recognise any

return data from the Starcraft servers, though it works fine on another machine (not sure

if this is related).

I've disabled the Comodo firewall on the unaccessible machine and believe file sharing is

activated but it hasn't helped.

I'm no expert in networks so if someone could suggest what I might have done wrong in the

setup, to correct the problem, I'd be very grateful because I've spent ages trying to fix

this already.

Thanks guys

Ana

 

[Okedokey]

try resetting the router first

 

[anasttin]

Thanks Bigfellla but it didn't help.

What else can I try?

 

[soflanetworking]

is the home group password the same on all three machines?