我最近从华为 E153 USB 调制解调器升级到了E583C 移动 WiFi 路由器。
该设备允许我的其他设备通过 wifi 完美地访问互联网，直到我回到现在的办公室。五到三十分钟之间，我的相关计算机将失去 wifi 连接。
尝试重新连接将失败。任何尝试注册其 wifi 网络的新设备都将也失败。它需要很长时间才能“恢复”，wifi 适配器才能重新建立连接并重新获得互联网访问权限。我不得不插入 USB 电缆来维持有线网络连接。
我的同事有一个类似的 mifi 型号，华为 E5830，她遇到了完全相同的问题 - 外面很好，办公室里肯定会断线。
首先猜测是大楼里有太多其他 wifi 接入点，所以我尝试切换传输通道 1、6、11 甚至 13，但都没有更好的效果。在展开 Windows 网络诊断日志时，它显示该区域大约有 19 个网络，所以我猜干扰太大了，我的小型 mifi 设备根本无法竞争。即使我安装了延伸天线。
下面是诊断日志，我无法正确识别我可以做些什么来进一步排除故障并可能解决这个办公区域的问题？
Windows Network Diagnostics Publisher details
Issues found
Problem with wireless adapter or access pointProblem with wireless adapter or access point Detected
Reset the wireless adapter Not run
Investigate router or access point issues Not run
Refer to Windows Help and Support for more information about wireless connectivity problems Not run
Issues found Detection details
6 Problem with wireless adapter or access point Detected
Reset the wireless adapter Not run
Investigate router or access point issues Not run
If you're connected to a hotspot or domain network, contact the network administrator. Otherwise: 1. Unplug or turn off the device. 2. After all the lights on the device are off, wait at least 10 seconds. 3. Turn the device back on or plug it back into the power outlet. To restart a router or access point that has a built-in battery, press and quickly release the Reset button.
Refer to Windows Help and Support for more information about wireless connectivity problems Not run
Windows cannot resolve your wireless connectivity issue.
Detection details
Diagnostics Information (Network Adapter)
Details about network adapter diagnosis:
Network adapter Wireless Network Connection driver information:
Description . . . . . . . . . . : Intel(R) Centrino(R) Ultimate-N 6300 AGN
Manufacturer . . . . . . . . . : Intel Corporation
Provider . . . . . . . . . . . : Intel
Version . . . . . . . . . . . : 13.0.0.107
Inf File Name . . . . . . . . . : C:\Windows\INF\oem20.inf
Inf File Date . . . . . . . . . : Sunday, November 29, 2009 8:53:22 AM
Section Name . . . . . . . . . : Install_MPCIEX_Dell_6300_AGN_3x3_HMC_WIN7_64_MOW
Hardware ID . . . . . . . . . . : pci\ven_8086&dev_422b&subsys_11218086
Instance Status Flags . . . . . : 0x180200a
Device Manager Status Code . . : 0
IfType . . . . . . . . . . . . : 71
Physical Media Type . . . . . . : 9
Diagnostics Information (Wireless Connectivity)
Details about wireless connectivity diagnosis:
Information for connection being diagnosed
Interface GUID: 2e86690b-af98-44fd-bce9-af109040338a
Interface name: Intel(R) Centrino(R) Ultimate-N 6300 AGN
Interface type: Native WiFi
Profile: MYWIFI
SSID: MYWIFI
SSID length: 9
Connection mode: Infra
Security: Yes
Connect even if network is not broadcasting: No
Connection incident diagnosed
Auto Configuration ID: 148
Connection ID: 164
Connection status summary
Connection started at: 2011-08-12 19:11:44-685
Profile match: Success
Pre-Association: Success
Association: Success
Security and Authentication: Fail
List of visible access point(s): 19 item(s) total, 19 item(s) displayed
BSSID BSS Type PHY Signal(dB) Chnl/freq SSID
-------------------------------------------------------------------------
FE-FF-6F-40-07-3E Ad hoc b -70 10 A9F1BDF1DAB1NVT4F4F59
F4-C7-14-8A-58-71 Infra g -45 6 MYWIFI
54-E6-FC-A5-09-CA Infra g -89 11 AP2A
00-0B-85-87-5D-CF Infra g -89 6 Wireless@SG
00-1E-4A-32-1B-D0 Infra g -88 6 (Unnamed Network)
00-0B-85-87-5D-CD Infra g -88 6 (Unnamed Network)
00-1D-70-F2-55-70 Infra g -74 6 (Unnamed Network)
30-46-9A-8E-AA-DA Infra g -84 6 (Unnamed Network)
00-0B-85-87-5D-CC Infra g -89 6 Wireless@SGx
00-24-C4-2F-12-B0 Infra g -85 6 (Unnamed Network)
00-27-19-D5-1D-DA Infra g -89 7 AP1
00-1E-4A-32-16-F0 Infra g -70 1 (Unnamed Network)
00-1E-13-84-FA-10 Infra g -61 1 (Unnamed Network)
54-E6-FC-E5-54-26 Infra <unknown> -91 3 AP2B
00-1E-4A-32-26-E0 Infra g -46 1 (Unnamed Network)
00-1E-4A-32-1D-A0 Infra g -81 11 (Unnamed Network)
00-1E-13-85-06-70 Infra g -88 11 (Unnamed Network)
AE-80-83-1F-76-D1 Ad hoc g -91 4 Free Public WiFi
00-0B-85-91-6C-2F Infra g -92 1 Wireless@SG
Connection History
Information for Auto Configuration ID 149
List of visible networks: 11 item(s) total, 11 item(s) displayed
BSS Type PHY Security Signal(RSSI) Compatible SSID
------------------------------------------------------------------------------
Ad hoc b Yes 50 Yes A9F1BDF1DAB1NVT4F4F59
Infra g Yes 93 Yes MYWIFI
Infra g Yes 18 Yes AP2A
Infra g No 18 Yes Wireless@SG
Infra g Yes 91 Yes (Unnamed Network)
Infra g No 20 Yes (Unnamed Network)
Infra g No 26 Yes (Unnamed Network)
Infra g Yes 18 Yes Wireless@SGx
Infra g Yes 18 Yes AP1
Infra <unknown> Yes 16 Yes AP2B
Ad hoc g No 15 Yes Free Public WiFi
List of preferred networks: 2 item(s)
Profile: MYWIFI
SSID: MYWIFI
SSID length: 9
Connection mode: Infra
Security: Yes
Set by group policy: No
Connect even if network is not broadcasting: No
Connectable: Yes
Profile: icelava
SSID: icelava
SSID length: 7
Connection mode: Infra
Security: Yes
Set by group policy: No
Connect even if network is not broadcasting: No
Connectable: No
Reason: 0x00028002
Information for Connection ID 165
Connection started at: 2011-08-12 19:12:36-457
Auto Configuration ID: 149
Profile: MYWIFI
SSID: MYWIFI
SSID length: 9
Connection mode: Infra
Security: Yes
Pre-Association and Association
Connectivity settings provided by hardware manufacturer (IHV): No
Security settings provided by hardware manufacturer (IHV): No
Profile matches network requirements: Success
Pre-association status: Success
Association status: Success
Last AP: f4-c7-14-8a-58-71
Security and Authentication
Configured security type: WPA-PSK
Configured encryption type: CCMP(AES)
802.1X protocol: No
Key exchange initiated: Yes
Unicast key received: Yes
Multicast key received: No
Number of security packets received: 8
Number of security packets sent: 8
Security attempt status: Success
Information for Auto Configuration ID 148
List of visible networks: 12 item(s) total, 12 item(s) displayed
BSS Type PHY Security Signal(RSSI) Compatible SSID
------------------------------------------------------------------------------
Ad hoc b Yes 50 Yes A9F1BDF1DAB1NVT4F4F59
Infra g Yes 93 Yes MYWIFI
Infra g Yes 16 Yes AP2A
Infra g No 18 Yes Wireless@SG
Infra g Yes 90 Yes (Unnamed Network)
Infra g No 18 Yes (Unnamed Network)
Infra g No 26 Yes (Unnamed Network)
Infra g Yes 20 Yes Wireless@SGx
Infra g Yes 20 Yes AP1
Infra <unknown> Yes 16 Yes AP2B
Infra <unknown> Yes 16 Yes sandy
Ad hoc g No 15 Yes Free Public WiFi
List of preferred networks: 2 item(s)
Profile: MYWIFI
SSID: MYWIFI
SSID length: 9
Connection mode: Infra
Security: Yes
Set by group policy: No
Connect even if network is not broadcasting: No
Connectable: No
Reason: 0x00028006
Profile: icelava
SSID: icelava
SSID length: 7
Connection mode: Infra
Security: Yes
Set by group policy: No
Connect even if network is not broadcasting: No
Connectable: No
Reason: 0x00028002
Information for Connection ID 164
Connection started at: 2011-08-12 19:11:44-685
Auto Configuration ID: 148
Profile: MYWIFI
SSID: MYWIFI
SSID length: 9
Connection mode: Infra
Security: Yes
Pre-Association and Association
Connectivity settings provided by hardware manufacturer (IHV): No
Security settings provided by hardware manufacturer (IHV): No
Profile matches network requirements: Success
Pre-association status: Success
Association status: Success
Last AP: f4-c7-14-8a-58-71
Security and Authentication
Configured security type: WPA-PSK
Configured encryption type: CCMP(AES)
802.1X protocol: No
Key exchange initiated: Yes
Unicast key received: Yes
Multicast key received: No
Number of security packets received: 30
Number of security packets sent: 30
Security attempt status: Fail 0x00038012
Information for Connection ID 163
Connection started at: 2011-08-12 19:09:58-699
Auto Configuration ID: 148
Profile: MYWIFI
SSID: MYWIFI
SSID length: 9
Connection mode: Infra
Security: Yes
Pre-Association and Association
Connectivity settings provided by hardware manufacturer (IHV): No
Security settings provided by hardware manufacturer (IHV): No
Profile matches network requirements: Success
Pre-association status: Success
Association status: Success
Last AP: f4-c7-14-8a-58-71
Security and Authentication
Configured security type: WPA-PSK
Configured encryption type: CCMP(AES)
802.1X protocol: No
Key exchange initiated: Yes
Unicast key received: Yes
Multicast key received: No
Number of security packets received: 30
Number of security packets sent: 30
Security attempt status: Fail 0x00038012
Information for Auto Configuration ID 147
List of visible networks: 11 item(s) total, 11 item(s) displayed
BSS Type PHY Security Signal(RSSI) Compatible SSID
------------------------------------------------------------------------------
Ad hoc b Yes 51 Yes A9F1BDF1DAB1NVT4F4F59
Infra g Yes 95 Yes MYWIFI
Infra g Yes 20 Yes AP2A
Infra g No 23 Yes Wireless@SG
Infra g Yes 91 Yes (Unnamed Network)
Infra g No 23 Yes (Unnamed Network)
Infra g No 26 Yes (Unnamed Network)
Infra g Yes 21 Yes Wireless@SGx
Infra g Yes 23 Yes AP1
Infra <unknown> Yes 13 Yes AP2B
Infra <unknown> Yes 13 Yes sandy
List of preferred networks: 2 item(s)
Profile: MYWIFI
SSID: MYWIFI
SSID length: 9
Connection mode: Infra
Security: Yes
Set by group policy: No
Connect even if network is not broadcasting: No
Connectable: No
Reason: 0x00028006
Profile: icelava
SSID: icelava
SSID length: 7
Connection mode: Infra
Security: Yes
Set by group policy: No
Connect even if network is not broadcasting: No
Connectable: No
Reason: 0x00028002
Information for Connection ID 162
Connection started at: 2011-08-12 19:08:47-704
Auto Configuration ID: 147
Profile: MYWIFI
SSID: MYWIFI
SSID length: 9
Connection mode: Infra
Security: Yes
Pre-Association and Association
Connectivity settings provi
Diagnostics Information (Wireless Connectivity)
Details about wireless connectivity diagnosis:
For complete information about this session see the wireless connectivity information event.
Helper Class: Auto Configuration
Initialize status: Success
Information for connection being diagnosed
Interface GUID: 2e86690b-af98-44fd-bce9-af109040338a
Interface name: Intel(R) Centrino(R) Ultimate-N 6300 AGN
Interface type: Native WiFi
Profile: MYWIFI
SSID: MYWIFI
SSID length: 9
Connection mode: Infra
Security: Yes
Connect even if network is not broadcasting: No
Result of diagnosis: Problem found
Issue referred to: L2Sec Helper Class
Root cause:
Windows could not connect to "MYWIFI"
You can try to connect again.
Repair option:
Try connecting to "MYWIFI" again, or connect to a different network
If you still can't connect to the network and you are the administrator, turn off your wireless router or access point, wait at least 10 seconds, turn it back on, and then try connecting again.
Diagnostics Information (L2sec Helper Class)
Details about L2Sec Helper Class diagnosis:
For complete information about this session see the Wireless Diagnostic Informational Event.
Helper Class: Layer2 Security
Initialize Status: Success
Result of diagnosis: There may be a problem
Information for connection being diagnosed
Interface GUID: {2e86690b-af98-44fd-bce9-af109040338a}
Interface name: Intel(R) Centrino(R) Ultimate-N 6300 AGN
Interface type: Native WiFi
Profile: MYWIFI
SSID: MYWIFI
SSID length: 9
Connection mode: Infra
Security enabled: Yes
Connection ID: 164
Security settings provided by hardware manufacturer (IHV): No
Profile matches network requirements: Yes
Pre-Association and association status: Success
Security and Authentication:
Configured security type: Wireless Protected Access with pre-shared keys (WPA-PSK)
Configured Encryption type: CCMP (AES)
Security connect status: Fail 0x00038012
Number of security packets received: 30
Number of security packets sent: 30
802.1X protocol: No
Key exchange initiated: Yes
Unicast keys received: Yes
Multicast keys received: No
Network Diagnostics Log
File Name: 37A4332C-446B-4077-B61F-5E9434B7DA60.Diagnose.0.etl
Collection information
Computer Name: MYLAPTOP
Windows Version: 6.1
Architecture: amd64
Time: Friday, August 12, 2011 7:12:44 PM
Publisher details
Windows Network Diagnostics
Detects problems with network connectivity.
Package Version: 1.0
Publisher: Microsoft Windows
答案1
好吧，虽然这不能解决一般问题，但具体到我的情况，我的同事告诉我大楼里有一个无线入侵防御系统 (WIPS) - 它会果酱出现在范围内的未注册的无线接入点。