Nexus S USB網路分享 異常

請教對於Android USB Tethering 有研究的大大

入手用到前陣子，只要到設定→無線網路→網路共用→USB共用就可以讓桌機上網

前陣子開始，需要設定成debug mode 才可以讓桌機找到手機

昨天完全暴走...已經是debug mode 點選USB無線網路分享都無效

只好暫時用PDANet讓電腦上網

狀況說明：
點選[透過USB分享網路]之後
手機上的核取方塊會出現打勾
桌機同時會發出USB偵測到的聲音
正常會出現驅動程式安裝
確認後就可以直接連上網路
不過昨晚把手機接上電腦後
馬上又發出第二聲偵測到USB的聲音
小綠人出現( 詢問連接USB裝置的確認畫面 )
回到共用網路的畫面
[透過USB分享網路] 的核取卻已經被取消
電腦上也沒有出現任何需要安裝驅動程式的畫面


之前刷過小米的ROM，後改回XDA原廠的

上星期因為網路異常緩慢，送回原廠檢查更換新的機板

目前是原廠的ROM，軟體都是market下載的

送修期間，朋友有拿一隻Legend給我替代使用

我也是拿它當作數據機上網，卻沒有這樣的問題

於是不解，是只有Nexus S會這樣嗎？

一定要debug mode才可以使用usb分享網路

甚至現在連debug mode都抓不到


到目前為止有試過幾種方法：
A.用別人的電腦測試
1.拿去家中別台電腦測試 - 3台都偵測不到
2.用自己筆電 - 正常
3.朋友家的桌機 - 偵測不到
4.朋友公司的桌機 - 正常
B.重新安裝自己電腦的USB驅動程式
C.更新作業系統
D.重灌作業系統

Nexus S 到現在還是無法跟電腦網路連接上
p.s.當磁碟存取功能是正常的，只有網路不行

XDA論壇搜尋不到相關的問題
煩請有研究類似主題的大大可以給個方向


<<作業環境>>
NexusS
Android 2.3.6
基頻號：I9023XXKF1
版本號：GRK39F

<<電腦環境>>
winXPsp3

<<安裝軟體>>
2007 Office system 相容性套件 Microsoft Corporation 12.0.6514.5001
ACDSee 9 Photo Manager(Taiwan) ACD Systems Ltd. 9.0.115
Adobe After Effects CS3 Adobe Systems Incorporated 8
Adobe AIR Adobe Systems Incorporated 3.0.0.4080
Adobe Community Help Adobe Systems Incorporated 3.0.0.400
Adobe Creative Suite 5 Master Collection Adobe Systems Incorporated 5.0
Adobe Flash Player 10 Plugin Adobe Systems, Inc. 10.1.52.14
Adobe Flash Player 11 ActiveX Adobe Systems Incorporated 11.0.1.152
Adobe kuler Adobe Systems Incorporated 2.1
Adobe Media Player Adobe Systems Incorporated 1.8
Adobe Reader 8.1.1 - Chinese Traditional Adobe Systems Incorporated 8.1.1
Atheros Communications Inc.(R) AR81Family Gigabit/Fast Ethernet Driver Atheros Communications Inc. 1.0.0.45
ATI Catalyst Install Manager ATI Technologies, Inc. 3.0.778.0
avast! Free Antivirus AVAST Software 6.0.1289.0
BlueGriffon version 1.2.1 Disruptive Innovations SAS 1.2.1
Box Shot 3D www.BoxShot3D.com 2.9.4
CCleaner Piriform 3.01
Corel Graphics - Windows Shell Extension Corel Corporation 15.1.0.588
CorelDRAW(R) Graphics Suite X5 Corel Corporation 15.1.0.588
CyberLink PowerDirector CyberLink Corp. 9.0.0.2504
Defraggler Piriform 2.03
Dropbox Dropbox, Inc. 1.2.46
DVD 錄錄燒 Ulead Systems, Inc. 2.10.2000.0170
FileZilla Client 3.5.0 3.5.0
FileZilla Server FileZilla Project beta 0.9.39
FlashDevelop 3.0.6 FlashDevelop.org 3.0.6-RTM
FMS
FocalFilter FocalFilter 0.9.00
Freeplane Open source 1.1.3
Funshion 控儔瑞俴婓盄撮扲衄癹鼠侗 2.4.2.56
Google Chrome Google Inc. 15.0.874.121
Google SketchUp Pro 8 Google, Inc. 3.0.3117
Google Talk (remove only)
Google Talk Plugin Google 2.5.6.4871
Google 地球 Google 6.1.0.5001
HD Tune 2.55 EFD Software
HttpWatch Basic 7.1.34 Simtec Limited 7.1.34
iColorFolder
Intel(R) Management Engine Components Intel Corporation 7.0.0.1144
Intel(R) Processor Graphics Intel Corporation 6.14.10.5328
iSpring Free 5 iSpring Solutions Inc. 5.7.0
Java 2 Runtime Environment, SE v1.4.1_02
Java Web Start
Java(TM) 6 Update 26 Oracle 6.0.260
Java(TM) 7 Update 1 Oracle 7.0.10
Java(TM) SE Development Kit 7 Update 1 Oracle 1.7.0.10
K-Lite Codec Pack 7.7.0 (Full) 7.7.0
Macromedia Dreamweaver 8 8.0.0.2766
Macromedia Extension Manager 您的公司名稱 1.7.277
Media Player Classic v6.4.9.1
Microsoft .NET Framework 2.0 Service Pack 2 Microsoft Corporation 2.2.30729
Microsoft .NET Framework 3.0 Service Pack 2 Microsoft Corporation 3.2.30729
Microsoft .NET Framework 3.5 SP1 Microsoft Corporation
Microsoft .NET Framework 4 Client Profile Microsoft Corporation 4.0.30319
Microsoft .NET Framework 4 Client Profile 繁體中文語言套件 Microsoft Corporation 4.0.30319
Microsoft .NET Framework 4 Extended Microsoft Corporation 4.0.30319
Microsoft .NET Framework 4 Extended 繁體中文語言套件 Microsoft Corporation 4.0.30319
Microsoft Office Professional Plus 2010 Microsoft Corporation 14.0.4763.1000
Microsoft Silverlight Microsoft Corporation 4.0.60831.0
Microsoft Visual C++ 2005 Redistributable Microsoft Corporation 8.0.61001
Microsoft Visual C++ 2008 Redistributable - KB2467174 - x86 9.0.30729.5570 Microsoft Corporation 9.0.30729.5570
Microsoft Visual C++ 2008 Redistributable - x86 9.0.30729.17 Microsoft Corporation 9.0.30729
Microsoft Visual C++ 2008 Redistributable - x86 9.0.30729.4148 Microsoft Corporation 9.0.30729.4148
Microsoft Visual C++ 2008 Redistributable - x86 9.0.30729.6161 Microsoft Corporation 9.0.30729.6161
Microsoft Visual Studio Tools for Applications 2.0 - ENU Microsoft Corporation 9.0.30729
Microsoft Visual Studio Tools for Applications 2.0 Language Pack - CHT Microsoft Corporation 9.0.30729
Microsoft Visual Studio Tools for Applications 2.0 Runtime Microsoft Corporation 9.0.30729
Microsoft Visual Studio Tools for Applications 2.0 Runtime Language Pack - CHT Microsoft Corporation 9.0.30729
Microsoft WinUsb 1.0 Microsoft Corporation
MSXML 4.0 SP2 (KB954430) Microsoft Corporation 4.20.9870.0
MSXML 4.0 SP2 (KB973688) Microsoft Corporation 4.20.9876.0
Nero 8 Micro 8.2.8.0 Updatepack.nl 8.2.8.0
No-IP DUC Vitalwerks Internet Solutions LLC 3.0.4
Notepad++ 5.9.6.2
NVIDIA Drivers NVIDIA Corporation 1.9
PCMan Novus PCMan Team Novus
PdaNet for Android 3.02 June Fabrics Technology Inc
PDF-Viewer Tracker Software Products Ltd 2.0.40.7
Picasa 3 Google, Inc. 3.8
PPStream V2.7.0.1248 Final PPStream, Inc. 2.7.0.1248
QuickTime Alternative 2.2.0 2.2.0
RC語音 raidcall.com 6.1.4-1.0.2010.214
Real Alternative 1.7.5 Lite 1.7.5
RealPlayer RealNetworks
Ruby 1.9.1-p430 RubyInstaller Team 1.9.1-p430
SDExplorer 3.0 CloudStorageExplorer.com 3.0
SmartSound Quicktracks 5 SmartSound Software Inc. 5.1.8
Stellarium 0.10.2
The KMPlayer (remove only)
Ulead MediaStudio Pro 7.0 Ulead Systems, Inc. 7.0
Unlocker 1.9.0 Cedrick Collomb 1.9.0
V-Ray for SketchUp ASGVIS 1.48.91
VIA 平台裝置管理員 VIA Technologies, Inc. 1.34
VistaSwitcher NTWind Software 1.1.4
VLC media player 1.1.11 VideoLAN 1.1.11
Windows Live 上載工具 Microsoft Corporation 14.0.8014.1029
Windows Live 登入小幫手 Microsoft Corporation 5.000.818.5
Windows Live 程式集 Microsoft Corporation 14.0.8117.0416
Windows Media Format 11 runtime
Windows Media Player 11
Windows Media 編碼器 9 系列
WinRAR 壓縮工具
X3D Core Functionality 1.1.2 X3D Technologies GmbH 1.01.0002
數位板 Wacom Technology Corp.
虾米电台 UNKNOWN 0.01

●有下載Android SDK也有eclipse( 免安裝所以上表無顯示 )