Wireless Connection to Internet

pts.
Tags:
Cabling
Hardware
Hubs
Network protocols
Networking
Routers
Switches
Hi all, My client has a Dell laptop with inbuilt Intel wireless NIC and onboard Ethernet NIC successfully connecting to a Minitar wireless hub/access point. The AP is connected to an Alcatel Speedtouch Home ADSL modem. When connected via Ethernet he can access both local devices and browse the Internet. When connected wirelessly he can communicate with local devices on the LAN but cannot connect to the Internet. The laptop is running WinXP SP2 with McAfee Security Center with Firewall. Another laptop on the same wireless LAN can connect to the Internet about 10% of the time (albeit very slowly) but times out the other 90%.

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What IP address / gateway / DNS are provided on both the wired and wireless LAN’s? Is it possible they both have the same address range (in which case incoming traffic from the Internet doesn’t know where to go)?

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  • Snapper70
    What IP address / gateway / DNS are provided on both the wired and wireless LAN's? Is it possible they both have the same address range (in which case incoming traffic from the Internet doesn't know where to go)?
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  • BadFinger
    Sounds like you have another access point interfering with yours. Try changing the channel.
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  • Squibc4
    Next laptop can communicate to internet through your AP, I.e. Your AP's configurations are correct. I assume that dell laptop doesn?t leasing it's default gateway, DNS IPs through your wireless. Check ?ipconfig/all? command in dell laptop. If it?s not showing configure it. I think your lap top can resolve LAN resources; problem is to resolve internet resources i.e. DNS IP is not present at there
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  • Lirria
    I had the same problem with a dell d400 and a dlink ap - The dell had sp2 on it (was just rebuilt from scratch) and it would not reliably connect to any wireless ap - Dell was no help. I finally rebuilt the machine with out sp2 and it works fine. I found lots of reports of this problem, but no real solutions out there. Sorry. Lirria
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  • Stephen09
    I had a similar problem with a dell laptop w/ built-in Intel wireless. I contacted dell tech support and they told me everything should be fine. I could ping resources successfully, but could not surf the web. After hours and hours of frustration, I finally found a solution. In the Intel driver properties, there is a power setting. I set it to use the maximum power for the wireless card, and everything started to work like it should. No more problems since then. Hope this helps.
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  • Backbyrner
    Thanks for all your suggestions. In the end Stephen09's suggestion of changing the maximum power setting of the Intel wireless NIC to the highest available that did the trick. Seems a bit odd that it could browse locally but not to the Internet but, hey, it now works! Once again, thanks for all your input. This forum is certainly one of the better ones on the Web. Backbyrner
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