Wireless Connection suddenly not received by Buffalo N Adapter

Need help on the topic.
General Background on my problem.

Bought Buffalo Wireless-N NFINITI High Power USB 2.0 Adapter (Using its Client Manager V Ver 1.4.1 from the CD included)
to act as a substitute for my wireless N PCI due do its bad reception of my wireless connection when I closed my door. (From 1~2bar reception to almost 0)

Initially everything works well. Connected the adapter to its extension usb wire to allow a better reception. (Reception /= My broadband speed)
From ( 1~5.5Mps) to (19.5~26Mps) .
It has function all well for one day +.
Suddenly yesterday afternoon it disconnects.
From then on, its wireless connection list no longer includes my wireless connection.
No matter how I restart desktop, plugin n unplug the adapter, restart my modem, it still does not detect my wireless connection.
Instead all other wireless network around my house are still detected.

Enabled my original Wireless N PCI card, it is able to detect my wireless connection, albeit its wireless connection is weak.

So please if anyone could assistance in finding y my adapter suddenly is unable to detect my connection.

Thx a lot

(Using Win7 Home Premium)
2 answers Last reply
More about wireless connection suddenly received buffalo adapter
  1. For the heck of it, try WZC (Windows Zero Configuration) rather than Client Manager.
  2. How to use it in the 1st place?
    I'm only with Win 7 for a few days.

    Then I'm not sure that explains y there's a sudden nil detection of my wireless connection.

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