4K resolution cannot be used to display videos in a Miracast session in Windows

Applies To
Windows Server 2012 R2 Datacenter Windows Server 2012 R2 Standard Windows Server 2012 R2 Essentials Windows Server 2012 R2 Foundation Windows 8.1 Enterprise Windows 8.1 Pro Windows 8.1 Windows RT 8.1

This article describes an issue that occurs when you try to use Wi-Fi Direct in Windows RT 8.1, Windows 8.1, or Windows Server 2012 R2. A hotfix is available to resolve this issue. The hotfix has a prerequisite.

Hotfix information

Important Do not install a language pack after you install this hotfix. If you do, the language-specific changes in the hotfix will not be applied, and you will have to reinstall the hotfix. For more information, see Add language packs to Windows.

 A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

If the hotfix is available for download, there is a "Hotfix Download Available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft website:

http:⁠//support.microsoft.com/contactus/?ws=support Note The "Hotfix Download Available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix, you must have April 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 (2919355) installed in Windows 8.1 or Windows Server 2012 R2.

Registry information

To use the hotfix in this package, you do not have to make any changes to the registry.

Restart requirement

You may have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The global version of this hotfix 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.

Windows 8.1 and Windows Server 2012 R2 file information and notes

Important Windows 8.1 hotfixes and Windows Server 2012 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 8.1/Windows Server 2012 R2" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

  • The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:

    Version Product Milestone Service branch
    6.3.960 0.17xxx Windows 8.1 and Windows Server 2012 R2 RTM GDR
  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very important to maintain the state of the updated components. 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 8.1

File name File version File size Date Time Platform
Nwifi.sys 6.3.9600.17415 375,808 29-Oct-2014 02:00 x86
Proximityservice.dll 6.3.9600.17415 248,832 29-Oct-2014 00:56 x86
Report.system.wireless.xml Not applicable 59,620 18-Jun-2013 12:37 Not applicable
Rules.system.wireless.xml Not applicable 159,934 18-Jun-2013 12:37 Not applicable
Wfdprov.dll 6.3.9600.17415 24,064 29-Oct-2014 00:58 x86
Wlan.mof Not applicable 12,880 18-Jun-2013 12:37 Not applicable
Wlanapi.dll 6.3.9600.17415 238,080 29-Oct-2014 00:53 x86
Wlanhlp.dll 6.3.9600.17415 11,264 29-Oct-2014 02:04 x86
Wlanmsm.dll 6.3.9600.17415 304,128 29-Oct-2014 00:49 x86
Wlansec.dll 6.3.9600.17415 383,488 29-Oct-2014 01:01 x86
Wlansvc.dll 6.3.9600.17728 1,326,080 13-Mar-2015 02:23 x86
Wlansvc.ptxml Not applicable 31,352 21-Aug-2013 23:39 Not applicable
Wlansvcpal.dll 6.3.9600.17415 14,848 29-Oct-2014 01:02 x86

For all supported x64-based versions of Windows 8.1 and of Windows Server 2012 R2

File name File version File size Date Time Platform
Nwifi.sys 6.3.9600.17415 445,440 29-Oct-2014 02:45 x64
Proximityservice.dll 6.3.9600.17415 301,568 29-Oct-2014 01:14 x64
Report.system.wireless.xml Not applicable 59,620 18-Jun-2013 15:09 Not applicable
Rules.system.wireless.xml Not applicable 159,934 18-Jun-2013 15:09 Not applicable
Wfdprov.dll 6.3.9600.17415 28,672 29-Oct-2014 01:17 x64
Wlan.mof Not applicable 12,880 18-Jun-2013 15:09 Not applicable
Wlanapi.dll 6.3.9600.17415 302,080 29-Oct-2014 01:10 x64
Wlanhlp.dll 6.3.9600.17415 11,264 29-Oct-2014 02:49 x64
Wlanmsm.dll 6.3.9600.17415 374,272 29-Oct-2014 01:03 x64
Wlansec.dll 6.3.9600.17415 445,952 29-Oct-2014 01:23 x64
Wlansvc.dll 6.3.9600.17728 1,547,264 13-Mar-2015 02:37 x64
Wlansvc.ptxml Not applicable 31,352 22-Aug-2013 06:45 Not applicable
Wlansvcpal.dll 6.3.9600.17415 18,944 29-Oct-2014 01:25 x64
Wfdprov.dll 6.3.9600.17415 24,064 29-Oct-2014 00:58 x86
Wlan.mof Not applicable 12,880 18-Jun-2013 12:37 Not applicable
Wlanapi.dll 6.3.9600.17415 238,080 29-Oct-2014 00:53 x86
Wlanhlp.dll 6.3.9600.17415 11,264 29-Oct-2014 02:04 x86
Wlanmsm.dll 6.3.9600.17415 304,128 29-Oct-2014 00:49 x86
Wlansec.dll 6.3.9600.17415 383,488 29-Oct-2014 01:01 x86
Wow64_wlansvc.ptxml Not applicable 31,352 21-Aug-2013 23:39 Not applicable

For all supported Windows RT 8.1

File name File version File size Date Time Platform
Nwifi.sys 6.3.9600.17238 336,896 24-Jul-2014 09:40 Not applicable
Proximityservice.dll 6.3.9600.17278 224,768 16-Aug-2014 00:17 Not applicable
Report.system.wireless.xml Not applicable 59,620 18-Jun-2013 15:09 Not applicable
Rules.system.wireless.xml Not applicable 159,934 18-Jun-2013 15:09 Not applicable
Wfdprov.dll 6.3.9600.16384 23,040 22-Aug-2013 02:11 Not applicable
Wlan.mof Not applicable 12,880 18-Jun-2013 15:09 Not applicable
Wlanapi.dll 6.3.9600.17728 207,872 13-Mar-2015 02:12 Not applicable
Wlanhlp.dll 6.3.9600.17041 11,264 06-Mar-2014 07:08 Not applicable
Wlanmsm.dll 6.3.9600.17728 271,872 13-Mar-2015 02:09 Not applicable
Wlansec.dll 6.3.9600.17728 317,440 13-Mar-2015 02:18 Not applicable
Wlansvc.dll 6.3.9600.17728 1,216,512 13-Mar-2015 02:10 Not applicable
Wlansvc.ptxml Not applicable 31,352 21-Aug-2013 23:33 Not applicable
Wlansvcpal.dll 6.3.9600.17238 14,336 24-Jul-2014 08:07 Not applicable

Additional file information

Additional file information for Windows 8.1 and for Windows Server 2012 R2

Additional files for all supported x86-based versions of Windows 8.1

File property Value
File name X86_1cfee498fef7de977f266e2af35dd9ca_31bf3856ad364e35_6.3.9600.17728_none_47498659a314f192.manifest
File version Not applicable
File size 705
Date (UTC) 13-Mar-2015
Time (UTC) 15:05
Platform Not applicable
File name X86_295933a67c0cc14314b6ea81e14687eb_31bf3856ad364e35_6.3.9600.17728_none_a4a788340c4c0108.manifest
File version Not applicable
File size 1,039
Date (UTC) 13-Mar-2015
Time (UTC) 15:05
Platform Not applicable
File name X86_microsoft-windows-native-80211_31bf3856ad364e35_6.3.9600.17728_none_e3ed3f17aa57e771.manifest
File version Not applicable
File size 68,300
Date (UTC) 13-Mar-2015
Time (UTC) 15:08
Platform Not applicable
File name X86_microsoft-windows-proximity-service_31bf3856ad364e35_6.3.9600.17728_none_14cf8057bb284882.manifest
File version Not applicable
File size 3,517
Date (UTC) 13-Mar-2015
Time (UTC) 15:08
Platform Not applicable
File name X86_microsoft-windows-wlansvc_31bf3856ad364e35_6.3.9600.17728_none_3128d85a204b8269.manifest
File version Not applicable
File size 237,229
Date (UTC) 13-Mar-2015
Time (UTC) 15:08
Platform Not applicable

Additional files for all supported x64-based versions of Windows 8.1 and of Windows Server 2012 R2

File property Value
File name Amd64_3ea87af0fbbbd6345c35776d341fb9d1_31bf3856ad364e35_6.3.9600.17728_none_f9b5dd8ed89cbb38.manifest
File version Not applicable
File size 709
Date (UTC) 13-Mar-2015
Time (UTC) 15:05
Platform Not applicable
File name Amd64_be2c4c32d6e98c1fb4005186c7385685_31bf3856ad364e35_6.3.9600.17728_none_7894d8646211249b.manifest
File version Not applicable
File size 699
Date (UTC) 13-Mar-2015
Time (UTC) 15:05
Platform Not applicable
File name Amd64_c5bd7f1fe484377c275b23dfd62d40be_31bf3856ad364e35_6.3.9600.17728_none_b74eb2294710354b.manifest
File version Not applicable
File size 1,045
Date (UTC) 13-Mar-2015
Time (UTC) 15:05
Platform Not applicable
File name Amd64_microsoft-windows-native-80211_31bf3856ad364e35_6.3.9600.17728_none_400bda9b62b558a7.manifest
File version Not applicable
File size 68,304
Date (UTC) 13-Mar-2015
Time (UTC) 15:11
Platform Not applicable
File name Amd64_microsoft-windows-proximity-service_31bf3856ad364e35_6.3.9600.17728_none_70ee1bdb7385b9b8.manifest
File version Not applicable
File size 3,519
Date (UTC) 13-Mar-2015
Time (UTC) 15:11
Platform Not applicable
File name Amd64_microsoft-windows-wlansvc_31bf3856ad364e35_6.3.9600.17728_none_8d4773ddd8a8f39f.manifest
File version Not applicable
File size 237,233
Date (UTC) 13-Mar-2015
Time (UTC) 15:11
Platform Not applicable
File name Wow64_microsoft-windows-wlansvc_31bf3856ad364e35_6.3.9600.17728_none_979c1e300d09b59a.manifest
File version Not applicable
File size 231,376
Date (UTC) 13-Mar-2015
Time (UTC) 15:11
Platform Not applicable

Additional files for all supported Windows RT 8.1

File property Value
File name Arm_86207a8e32dd18c1cdde4433eacc55fb_31bf3856ad364e35_6.3.9600.17728_none_912aebb7c576d309.manifest
File version Not applicable
File size 1,039
Date (UTC) 13-Mar-2015
Time (UTC) 15:05
Platform Not applicable
File name Arm_b1947365396f1ca43de38796522e790f_31bf3856ad364e35_6.3.9600.17728_none_c853d14003a1db37.manifest
File version Not applicable
File size 705
Date (UTC) 13-Mar-2015
Time (UTC) 15:05
Platform Not applicable
File name Arm_microsoft-windows-native-80211_31bf3856ad364e35_6.3.9600.17728_none_e3efb16faa550637.manifest
File version Not applicable
File size 68,300
Date (UTC) 13-Mar-2015
Time (UTC) 15:05
Platform Not applicable
File name Arm_microsoft-windows-proximity-service_31bf3856ad364e35_6.3.9600.17728_none_14d1f2afbb256748.manifest
File version Not applicable
File size 3,517
Date (UTC) 13-Mar-2015
Time (UTC) 15:05
Platform Not applicable
File name Arm_microsoft-windows-wlansvc_31bf3856ad364e35_6.3.9600.17728_none_312b4ab22048a12f.manifest
File version Not applicable
File size 237,229
Date (UTC) 13-Mar-2015
Time (UTC) 15:05
Platform Not applicable

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

Cause

This issue occurs because the typos in the association frame parser cause the maximum data rate for 4K connections to be interpreted incorrectly.

References

See the terminology that Microsoft uses to describe software updates.