Tp-link Adapter - Cannot Connect To Wifi Although Connections Available

Dec 11, 2011

I have been using a TP-Link wifi adapter for last two months, It worked flawlessly till a couple of days ago. It just so happened that i turned on my computer and even though the wifi connections were available, when trying to connect this message keeps showing up " Windows was unable to connect to UoC WiFi". I have tried everything from making a new wifi connection to changing usb-ports

FYI I use the same wifi connection on my netbook and android, and they are working fine, so it's definitely not a problem with the ISP.

[code]....

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I have a TP-Link TL-WN723 USB WiFi adapter attached to my laptop, which runs WinXP Service Pack 3. It successfully detdcts the WiFi provided by my Edimax BR62-04Wg router, but when I try to connect, it cannot obtain an IP address and cannot connect to the network.

- The very same WiFi adapter can connect to other routers without any problem
- Any other device can connect to the very same network provided by my router without any problem
- Using the WiFi adapter with other computers does not work

Thus, it seems that the problem is somewhere between this specific router and WiFi adapter. Here is an interesting detail though:If I try connecting to my WiFi while a LAN cable from the router is plugged into my computer, the wireless connection establishes too. Even if I later unplug the LAN cable, the wireless connection continues to work. But it won't establish the connection without the cable plugged in.Here's what I've already know/tried:

- Rebooting the PC
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- Using the Windows client for wireless networking and the client included on the WiFi adapter's CD
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None of these had any effect except for one:

- When I changed the router's connection type to Station Ad-hoc, I could connect wirelessly even without the LAN cable plugged in, and I had Internet access. However, in this case, other devices, such as smartphones could not detect the WiFi connection.

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Tech Support Guy System Info Utility version 1.0.0.1 OS Version: Microsoft� Windows Vista� Home Premium , 32 bit Processor: Intel(R) Core(TM)2 Duo CPU T5550 @ 1.83GHz, x64 Family 6 Model 15 Stepping 13 Processor Count: 2 RAM: 2037 Mb Graphics Card: Mobile Intel(R) 965 Express Chipset Family, 448 Mb Hard Drives: C: Total - 102720 MB, Free - 27457 MB; D: Total - 11750 MB, Free - 1681 MB; Motherboard: Hewlett-Packard, 30D9, 83.21, CND8173S5Q Antivirus: AVG Anti-Virus Free, Updated: Yes, On-Demand Scanner: Enabled

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