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Zandermander 0 Light Poster

I have a Windows XP SP3 computer, AT&T Uverse with a 2wire router and 2wire usb wireless adapter on my desktop. It was working earlier today just fine, not quite sure what happened but now it will not connect to my WPA encrypted router. I can connect to other wireless networks in my neighborhood no problem, and right now i am connected to my router via my Droid and tethered to my computer...

I tried reinstalling the driver software that came with the adapter, i even system restored to an earlier date, I have no more ideas on how to fix this...

Any ideas?

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Dani AI

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For — focused troubleshooting steps that target what commonly breaks when an XP machine suddenly won't join a WPA network even though the USB radio itself still works.

  • Check router encryption and wireless mode. Log into the 2Wire admin page (often 192.168.1.254) and verify Security Mode and Encryption. If the router is set to WPA2/AES-only, switch briefly to WPA/WPA2 mixed mode or WPA‑PSK (TKIP) to test. Also ensure wireless mode is not set to "N-only" (use mixed b/g/n or b/g).

  • Remove and recreate the Windows wireless profile. In XP: Control Panel → Network Connections → right‑click Wireless Network Connection → Properties → Wireless Networks tab → remove the network and add it again using the correct passphrase. Corrupt saved profiles are a frequent cause.

  • Check client-side management conflicts. Either use Windows Wireless Zero Configuration (set it to Automatic in services.msc) or the adapter vendor's utility — not both. If a third‑party manager is installed, try disabling/uninstalling it so Windows manages the connection.

  • Confirm DHCP/IP assignment. If the adapter associates but gets an address like 169.254.x.x, DHCP failed. Reboot router and PC, then renew the lease (ipconfig /release and ipconfig /renew) to test.

  • Quick tests: temporarily disable wireless security (briefly) or set a simple WPA key to see if the PC will associate; if that works, the issue is encryption/driver compatibility. Check for a driver update from the adapter manufacturer that explicitly lists WPA2/AES support on XP, and check the router firmware for updates.

If none of the above helps, capture any error text shown during connection attempts and consider replacing the USB adapter (many older adapters lack robust WPA2/AES support on XP). Keep the network secured when testing — do not leave it open.

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