Is this the same computer and network that you posted about in this thread:
http://forums.whatthetech.com/IE_Mozilla_n…tes_t99875.html
Internet connection typically involves a few pieces of hardware:
Your cable connection or telephone jack
A Modem
A Router
the computers, printers, game consoles
A few brands of Modem also serve as wired and wireless routers, so some folks don't have separate modem and separate router.
Modem setup can become corrupted.
Generally turning off the power for a few minutes and then back on , will allow a modem to reset itself to proper connection settings.
Router setup can become corrupted.
Again, turning off the power for a few minutes and then back on, will allow the router to re-acquire internet connection
Sometimes it is necessary to walk through the Modem setup as instructed by your ISP and specific to the brand/type of modem you have. (should be a brand/model # and Modem Access Code printed on the bottom of the Modem.
Your ISP will ordinarily provide online help for proper set up of modem connection.
Sometimes it is necessary to walk through the Router setup as instructed by a manual or a CD provided with the Router.
Wires can get disconnected, or may not be firmly seated at their connections
Wireless connections can become corrupted by other radio/wireless telephone devices used close to the router or computer
Walls, insulation and distance can make a difference with wireless connection.
And then you also have your computer's Network Interface device (integrated or NIC card or USB NIC adapter)
NIC cards and devices have have Drivers.
Check your Device Manager for any yellow or red warnings, and reinstall drivers as needed.
Here's a simple graphic illustrating a common home-network.
📎network_wireless_diagram_1.jpg
"Where the problem resides" is impossible to determine until the entire Network is described, including brand names and model numbers.
Please list the hardware devices you have in your situation.
