I'm having the same problem on a vista computer, it's a desktop computer running wireless (problems with ethernet, won't work) and my internet is showing up on Limited Connectivity, but it still works...and the modem is like...1 foot away from the wireless antenna on the desktop...at times it shows limited, next I restart and shows excellent, but limited...my other computer is running normally...no problems...and the turn off device thing you said above is disabled on my network card as well...but I'm not sure if my internet is causing any problems...and I sure don't have a solution to your problem...

Solution:
http://www.pchell.com/support/limitedconnectivity.shtml

Can you both pls give configuration of your computer :

1) OS(Operating System).

2) Wi-fi card in your computer.( using a wireless USB drive,builtin wi-fi card or installed a wi-fi card inside computer?)


3) base station(the device with which your computer is connecting,
eg. wireless router).

Jasti,

r u using a LAN connection to connect your computer to the
the home network? The punch pro that you have installed definitely is causing the problem. Make sure that this punch pro
is not blocking incoming connections to your computer.
When you try to connect your computer with the home network,
this punch pro definitely is not allowing your computer to get a valid
IP address.

Read the manual of this and see what does it says.

If you still donot find any information about how to unblock the
incoming connections to computer, contact the vendor from
where you have purchased this product and take guidance from them.


PCPRO,

Did you install any anti-virus, anti-spyware or any such security program
on your computer before you started to have this problem?

Make sure you disable those programs and then see if you are still geting
that error messege "Limited and no connectivity".