Every so often, particularly after changing sites, the browser (happens both with IE and firefox) does not connect, waits and waits until the message comes that this site can not be connected. The internet is connected as seen in the taskbar and switching users readily connects with the desired site. Similarly closing the browser for a few minutes restores the ability to find the site, also restarting the computer achieves the same. Please help. What is going on? How to correct?
My laptop, using vista and receiving from the same wireless router, at the same time that this goes on, does not experience any problem. The task manager on the desktop does not show anything unusual and has plenty of memory and CPU capacity.