Hi I have a Inspiron 1405, Vista Home Premium, Intel 3945ABG wireless adapter. 

 

Every few days while surfing the internet at night, web pages will suddenly just stop loading and will immediatly display a DNS error when entering a web address.  This occurs regardless of browser.  I also lose connection to all internet software such as messenger.  

 

I do not think it is a problem with my network as windows still lists the connection as active with a strong signal I have had the problem occur on different networks.  I have tried disconnecting/reconnecting to the network, releasing/renewing my IP address, and also disabled/re- enabled the wireless adapter without positive results.  

However, if I restart the laptop the problem goes away and I can continue to browse as normal.  Any idea on what might be causing this issue?