Symptoms
Consider the following scenario:
-
You have a Windows 7-based computer that uses mobile broadband connection.
-
You apply the KB2813956 update on the computer.
-
You roam through different network providers. For example, this occurs when you are traveling.
-
You manually register with a network provider on the computer.
In this scenario, the connection fails and the View Available Networks UI (VAN UI) freezes.
Note You can restart the Wireless Wide Area Network (WWAN) AutoConfig service (WWANSvc) to recover from this issue.
For more information about KB2813956, click the following article number to view the article in the Microsoft Knowledge Base:
2813956 Mobile broadband network provider disappears from VAN UI in Windows 7
Cause
This issue occurs because of a problem in the WWAN AutoConfig service.
Resolution
Update information
How to obtain this update
Microsoft Update
This update is available from the Microsoft Update website:
Microsoft Download Center
The following files are available for download from the Microsoft Download Center:
|
Operating system |
Update |
|---|---|
|
All supported x86-based versions of Windows 7 |
|
|
All supported x64-based versions of Windows 7 |
For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591 How to obtain Microsoft support files from online services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.
Prerequisites
To apply this update, you must be running Windows 7 Service Pack 1 (SP1).
For more information about how to obtain a Windows 7 or Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
976932 Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2
Registry information
To apply this update, you do not have to make any changes to the registry.
Restart requirement
You must restart the computer after you apply this update.
The global version of this update installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.
The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows 7" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.
For all supported x86-based versions of Windows 7
|
File name |
File version |
File size |
Date |
Time |
Platform |
|---|---|---|---|---|---|
|
Wwanprotdim.dll |
8.1.7601.18113 |
40,960 |
19-Mar-2013 |
03:33 |
x86 |
|
Wwansvc.dll |
8.1.7601.18380 |
185,344 |
28-Jan-2014 |
02:07 |
x86 |
|
Wwan_profile_v1.xsd |
Not applicable |
6,201 |
10-Jun-2009 |
21:42 |
Not applicable |
|
Wwanprotdim.dll |
8.1.7601.22583 |
40,960 |
28-Jan-2014 |
02:10 |
x86 |
|
Wwansvc.dll |
8.1.7601.22583 |
185,344 |
28-Jan-2014 |
02:10 |
x86 |
|
Wwan_profile_v1.xsd |
Not applicable |
6,201 |
10-Jun-2009 |
21:42 |
Not applicable |
For all supported x64-based versions of Windows 7
|
File name |
File version |
File size |
Date |
Time |
Platform |
|---|---|---|---|---|---|
|
Wwanprotdim.dll |
8.1.7601.18113 |
48,640 |
19-Mar-2013 |
05:53 |
x64 |
|
Wwansvc.dll |
8.1.7601.18380 |
228,864 |
28-Jan-2014 |
02:32 |
x64 |
|
Wwan_profile_v1.xsd |
Not applicable |
6,201 |
10-Jun-2009 |
21:03 |
Not applicable |
|
Wwanprotdim.dll |
8.1.7601.22583 |
48,640 |
28-Jan-2014 |
02:40 |
x64 |
|
Wwansvc.dll |
8.1.7601.22583 |
228,864 |
28-Jan-2014 |
02:40 |
x64 |
|
Wwan_profile_v1.xsd |
Not applicable |
6,201 |
10-Jun-2009 |
21:03 |
Not applicable |
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
More Information
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates
Additional file information for Windows 7
Additional files for all supported x86-based versions of Windows 7
|
File property |
Value |
|---|---|
|
File name |
Update.mum |
|
File version |
Not applicable |
|
File size |
1,625 |
|
Date (UTC) |
28-Jan-2014 |
|
Time (UTC) |
07:10 |
|
Platform |
Not applicable |
|
File name |
X86_f1b605dd7ffb2ee416d14901b2b908fb_31bf3856ad364e35_6.1.7601.22583_none_a52b5868897f57c0.manifest |
|
File version |
Not applicable |
|
File size |
695 |
|
Date (UTC) |
28-Jan-2014 |
|
Time (UTC) |
07:10 |
|
Platform |
Not applicable |
|
File name |
X86_f638ce6d0f3010b19510a1db358d1d67_31bf3856ad364e35_6.1.7601.18380_none_41ff71cbb310910b.manifest |
|
File version |
Not applicable |
|
File size |
695 |
|
Date (UTC) |
28-Jan-2014 |
|
Time (UTC) |
07:10 |
|
Platform |
Not applicable |
|
File name |
X86_microsoft-windows-wwansvc_31bf3856ad364e35_6.1.7601.18380_none_a32635a77d9518a6.manifest |
|
File version |
Not applicable |
|
File size |
51,347 |
|
Date (UTC) |
28-Jan-2014 |
|
Time (UTC) |
07:13 |
|
Platform |
Not applicable |
|
File name |
X86_microsoft-windows-wwansvc_31bf3856ad364e35_6.1.7601.22583_none_a3b2d53696b0019c.manifest |
|
File version |
Not applicable |
|
File size |
49,377 |
|
Date (UTC) |
28-Jan-2014 |
|
Time (UTC) |
02:36 |
|
Platform |
Not applicable |
Additional files for all supported x64-based versions of Windows 7
|
File property |
Value |
|---|---|
|
File name |
Amd64_3ab53a61f8fa1c3ace7bc8a46a94008c_31bf3856ad364e35_6.1.7601.18380_none_f3ff88acb4f8f46d.manifest |
|
File version |
Not applicable |
|
File size |
699 |
|
Date (UTC) |
28-Jan-2014 |
|
Time (UTC) |
07:10 |
|
Platform |
Not applicable |
|
File name |
Amd64_5e1d582fb6c64efb6926ce68cc36bdee_31bf3856ad364e35_6.1.7601.22583_none_1a03a9436c0ec826.manifest |
|
File version |
Not applicable |
|
File size |
699 |
|
Date (UTC) |
28-Jan-2014 |
|
Time (UTC) |
07:10 |
|
Platform |
Not applicable |
|
File name |
Amd64_microsoft-windows-wwansvc_31bf3856ad364e35_6.1.7601.18380_none_ff44d12b35f289dc.manifest |
|
File version |
Not applicable |
|
File size |
51,351 |
|
Date (UTC) |
28-Jan-2014 |
|
Time (UTC) |
07:10 |
|
Platform |
Not applicable |
|
File name |
Amd64_microsoft-windows-wwansvc_31bf3856ad364e35_6.1.7601.22583_none_ffd170ba4f0d72d2.manifest |
|
File version |
Not applicable |
|
File size |
49,381 |
|
Date (UTC) |
28-Jan-2014 |
|
Time (UTC) |
03:07 |
|
Platform |
Not applicable |
|
File name |
Update.mum |
|
File version |
Not applicable |
|
File size |
1,635 |
|
Date (UTC) |
28-Jan-2014 |
|
Time (UTC) |
07:10 |
|
Platform |
Not applicable |
