I am having difficulty accessing the internet on my laptop using Vista. I have a home wireless network set up which I used for XP, and never had any trouble. Now when I turn on Vista, the connection usually lasts about 20 minutes and then either I cannot connect again or it shows a low wireless signal. Always after about 20 minutes. In addition when I try to use ethernet cables in hotels I have the hardest time establishing the connection. I have changed the power settings for wireless connection to MAXIMUM PERFORMANCE, but it still happens. Is there some extra security settings or something that is pre set in vista? Please help!! I have to reboot the system every 20 minutes! Thanks.

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