Networking - Sony VAIO VGN-TZ100 Series User Manual

If your problem is fax-related, make sure there are no problems with the fax machine you are calling and that it is
compatible with fax modems.
If you are having a problem connecting with your ISP, make sure the ISP is not experiencing technical problems.
If you have a second telephone line, try connecting the modem to that line.

Networking

What should I do if my computer cannot connect to a wireless LAN access point?
Connection availability is affected by distance and obstructions. You may need to move your computer away from
obstructions or closer to any access point you may be using.
Make sure the WIRELESS or WIRELESS LAN switch is on and the Wireless LAN indicator is lit on your computer.
Make sure power to the access point is on.
Follow these steps to check the settings:
1 Click Start and Control Panel.
2 Click View network status and tasks under Network and Internet.
3 Click Connect to a network to confirm that your access point is selected.
Make sure the encryption key is correct.
Make sure Maximum Performance is selected for Wireless Adapter Settings in the Power Options window. Selecting
any other option may result in a communication failure. To change the settings, follow these steps:
1 Right-click the power status icon on the taskbar and select Power Options.
2 Click Change plan settings under the current power plan.
3 Click Change advanced power settings.
The Power Options window appears.
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Troubleshooting