[BabbotW]

This may be the same issue as "Unable to browse websites, but can still ping." My laptop is new (Vaio - Windows Vista Home Premium) with nothing extra installed on it yet. If I connect to our linksys wirelessly I can then browse for a while, but ultimatly web pages will stop loading (or refreshing). "A while" can be anywhere from 10 minutes to 3 hours. When the "lockup" occurs the diagnostics cant find anything particularly wrong. Everything looks normal in the "Control Panel/Network and Internet/Network and Sharing Center." If I wait in this state long enough the router <-> internet link eventually "breaks." Either way (wait or not) if I disconnect and reconnect to the network I am up and running again ... for 10 minutes to 3 hours. Reconnecting once per evening is a minor irritation. Every 10 minutes is unusable.

Any thoughs

[nfedei]

This might be out on a limb here....need to know a little more about your network configuration. My initial suggestion would be to connect your pc with a cable to the router and perform windows updates. Originally I've found network related issues with Vista and after a few updates the problems were resolved.
And I'm sorry...I don't run a vista machine...I've worked on plenty...but I couldn't tell you from the top of my head where the windows update feature is located...maybe start icon...all programs still...
But try the updates and repost with your network configuration...it would be helpful...
Numer of PC's
Internet Provider
Router Model

Thanks!

[TerryNet]

Also make sure you have the latest wireless driver. If it is an integrated driver get the latest from your PC manufacturer's web site.

[BabbotW]

I contacted Sony Support (should have done that sooner.) Their solution, which seems to be working so far, was to switch the security on networ between my laptop and linksys router from WEP to WAP2. What combination of Sony / WirelessChip / Windows(62) Vista Home Premium causes the wireless "disconnect" of my network with WEP security is a mistery.

Thanks for the help.