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Sony VPCSE2E1E - VPCSE2E1E Istruzioni per l'uso Inglese

Sony VPCSE2E1E - VPCSE2E1E Istruzioni per l'uso Inglese

Troubleshooting >

Troubleshooting > Networking (LAN/Wireless LAN) n178 N What are channels? ❑ ❑ Wireless LAN communication uses divided frequency bands known as channels. Third-party wireless LAN access point channels may be preset to different channels from Sony devices. If you are using a wireless LAN access point, see connectivity information contained in the manual that came with your access point. Why does the network connection stop when I change the encryption key? Two computers with the wireless LAN function may lose a peer-to-peer network connection if the encryption key is changed. You can either change the encryption key back to the original profile or re-enter the key on both computers so the key matches.

Troubleshooting > Wireless WAN n179 N Wireless WAN What should I do if my computer cannot connect to the wireless WAN? ❑ ❑ ❑ ❑ ❑ ❑ ❑ Make sure the battery pack is installed properly and charged. Make sure the SIM card is 3G data enabled and activated by your telecom operator. When inserting the SIM card, be sure to follow the procedure in Inserting a SIM Card (page 73). Your mobile phone network needs to cover your area. Contact your network provider for information on the network coverage. Make sure the WIRELESS switch is on and the WIRELESS indicator light is lit on your computer. Make sure the switch next to Wireless WAN is set to On in the VAIO Smart Network window. Make sure that the Access Point Name (APN) is properly configured in your connection manager software. If not, contact your telecom operator to get the correct APN to use. See the help file included with the connection manager software for more information about the APN configuration. Check that your connection manager software has detected the wireless WAN modem successfully. It may take some time for the software to detect the wireless WAN modem. ✍ For further information on the wireless WAN function, visit the VAIO support web site. ❑ ❑ Make sure the SIM card cover is closed. If you have disabled the wireless devices in the BIOS setup screen, you cannot access the Internet through a wireless network. To enable the devices, follow the steps in Disabling Built-in Devices (page 133).