Can you try the laptop somewhere else? Try Mcdonalds or Starbucks, work, school, etc. Does it see the connection there? Does it connect ok there. Break your troubleshooting it into small steps. If it works else where then something is set wrong in your wireless at home. If it doesn't work else where then keep troubleshooting the laptop itself. When your watching the SSID show up then disappear are all wireless SSID also doing the same. Can you see neighbor and just watch if they drop in and out? Can you confirm your router is the same network speed. B,G or N. Make sure its a on a speed the laptop can do. Can you change your router and disable the security for a little while and see if that effects how the laptop connects. IF it works without security then check your security settings, Maybe the router is set to an old or newer type if security, Try different one's if it works correctly with security off. Can you login into your router and look at the logs its recording. Maybe there's a clue in it. Re-confirm the gateway and subnet are correct. I don't know if your XP, vista or 7, but open a command window or Dos prompt and type "ipconfig /a" It will list all the network information. Also type "ipconfig ?" For a list of options to use with the command. You may need to a release or renew the connection.
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Thank you for your help. I talked to a Sony Rep and the problem turned out to be with the wireless card. It only registers signals of 2.4 ghz....I had my router set at 2.2-2.3 ghz. I do not get disconnected anymore with my router. Now if it can maintain the signal at McDonalds or Starbucks is another story....
Thanks for posting your solution. I thought all wireless routers only worked at 2.4 ghz. Interesting that your router lets you pick 2.2-2.3 ghz. That would really only be needed if you had interference from something else operating at 2.4, Anyway glad your up and running. One more reason I'm glad I also bought a Sony Vaio. Tech support. Been real happy with mine. Sure your laptop will work everywhere now. take care.
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