Troubleshoot:After working fine our wireless home network is now acting very strangely! Error

After working fine our wireless home network is now acting very strangely!

3 PC's running XP and an Xbox connect to a Belkin N1 router/adaptor and a Virgin modem.
Suddenly, either one or all of the compters will not connect and the Xbox does - or the opposite in varying patterns.
All completely illogical.
No settings have been
changed.
The only software recently added is Office 2007 and the usual Microsft security updates.
At the time of writing, this PC is the only one connecting out of the usual 3 plus the Xbox.
We have reset the modem each time with some success but the problem
continues.

Keys to the Problem After working fine our wireless home network is now acting very strangely!

Download Error Fixer (Free)

Note: It is recommended that you back up your files and folders before attempting this step:

• Move the mouse cursor over to the upper right side of the screen.
• A menu will pop up on the left. Click on the "Settings" feature on the menu.
• On the Settings window, click on the "Change PC settings."
• Now, left click on the "Update and recovery" feature.
• For the next step, left click on the "Recovery" feature.
• There is an option here saying "Refresh your PC without affecting your files." There, left click on the "Get started" button.
• Now, follow the instructions on the screen to finish the Refresh process.
• After the Refresh process has finished restart your Windows 8.1 or Windows 8 device.
• Check again to see if the error After working fine our wireless home network is now acting very strangely! has been fixed.

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Another Safe way to Fix the Problem: After working fine our wireless home network is now acting very strangely!:

How to Fix After working fine our wireless home network is now acting very strangely! with SmartPCFixer?

1. You can Download Error Fixer here. Install it on your system. When you open SmartPCFixer, it will perform a scan.

2. After the scan is finished, you can see the errors and problems which need to be fixed.

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