Try this: I also was loosing my wireless connection. In Chrome, I would go to "Settings", "Network", "Change Proxy Settings".
Your Vista "Internet Properties" Box will come up, Click "LAN Settings", and under "Proxy Server", un-check "Use Proxy Server For your LAN".
I usually had that happen when I had too much "stuff" uploading/downloading at once and the laptop would just switch from Wireless to LAN on it's on own. I think it's a Vista issue because it doesn't happen with Win 7. I did increase the internal RAM with bigger RAM cards: Go to
http://www.crucial.com/ They have a RAM memory upgrade tool that can scan your laptop and give you the Manufactuer and product# of the highest compatible RAM upgrade card available for your specific Laptop, just put the brand, series, etc., in the drop down menu. Take that info, go to:
http://www.tigerdirect.com/ and bring up the product. (I buy from them because of lower price and great service) They have an installation guide for the cards there also, it's pretty easy. It will speed up your computer and your Internet. But it will only increase Internet by what your IP provider allows, so if you have High speed DSL, but your provider has you at the low spectrum because you live in the boonies (like me, 1.5 mbps, CenturyLink, urgh!) you can only do so much. We hooked up my son with "Comspeed" (50 mbps/200 GB Internet consumption) after "Hughesnet" was a huge disaster (50 mbps/limited monthly 10 GB Internet consumption) for the same price........
Probably TMI :scared:
Now my brain is stuck in computer nerd.......which I'm not! I just don't like paying someone to do something I can ask a few subtle questions about and DYI. Ask me about later model trucks, I can fix them, may not know the proper names for some of the gizmos, but I can fix them!!!