![\"\"](\"\/image.axd?picture=2012%2f8%2fLyncWIF.JPG\")
<\/p>\nWhen installing Lync server 2013 on a Windows server 2012 I got a missing prerequisite.<\/p>\n
<\/p>\n
All you have to do is to install the “Windows Identity Foundation” feature.<\/p>\n
Powershell: Add-WindowsFeature Windows-Identity-Foundation<\/p>\n
To install all of required Windows features :<\/p>\n
import-module servermanager
add-windowsfeature telnet-client,RSAT-ADDS,net-framework-45-core,windows-identity-foundation,Web-Static-Content,Web-Default-Doc,Web-Http-Errors,web-asp-net,web-asp-net45,Web-Net-Ext,Web-ISAPI-Ext,web-isapi-filter,Web-Http-Logging,Web-Log-Libraries,Web-Http-Tracing,Web-Windows-Auth,Web-Filtering,Web-Stat-Compression,Web-Dyn-Compression,Web-Mgmt-Console,Web-Scripting-Tools,Web-Client-Auth,server-media-foundation,MSMQ-Server,MSMQ-Directory,NET-WCF-HTTP-Activation45<\/p>\n
To add “add-windowsfeature Web-Asp-Net,Web-Net-Ext ” your computer needs access to internet.<\/p>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
When installing Lync server 2013 on a Windows server 2012 I got a missing prerequisite. All you have to do is to install the “Windows Identity Foundation” feature. Powershell: Add-WindowsFeature Windows-Identity-Foundation To install all of required Windows features : import-module servermanager add-windowsfeature telnet-client,RSAT-ADDS,net-framework-45-core,windows-identity-foundation,Web-Static-Content,Web-Default-Doc,Web-Http-Errors,web-asp-net,web-asp-net45,Web-Net-Ext,Web-ISAPI-Ext,web-isapi-filter,Web-Http-Logging,Web-Log-Libraries,Web-Http-Tracing,Web-Windows-Auth,Web-Filtering,Web-Stat-Compression,Web-Dyn-Compression,Web-Mgmt-Console,Web-Scripting-Tools,Web-Client-Auth,server-media-foundation,MSMQ-Server,MSMQ-Directory,NET-WCF-HTTP-Activation45 To add “add-windowsfeature Web-Asp-Net,Web-Net-Ext ” your computer needs access to internet. <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[6],"tags":[],"class_list":["post-65","post","type-post","status-publish","format-standard","hentry","category-lync"],"aioseo_notices":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_likes_enabled":false,"jetpack-related-posts":[{"id":526,"url":"https:\/\/www.vatland.no\/index.php\/error-installing-skype-for-business-server-2015\/","url_meta":{"origin":65,"position":0},"title":"Error installing Skype for Business server 2015","author":"Atle","date":"September 3, 2015","format":false,"excerpt":"Tried to install S4B server 2015 in my lab. Tried this from a computer with no internet access, also I did not install any prerequisites. \"Error: Prerequisite installation failed: Prerequisite installation failed: SqlInstanceRtc For more information, check your SQL Server log files. Log files are in the folder C:\\Program Files\\Microsoft\u2026","rel":"","context":"In "Lync"","block_context":{"text":"Lync","link":"https:\/\/www.vatland.no\/index.php\/category\/lync\/"},"img":{"alt_text":"installerror","src":"https:\/\/i0.wp.com\/www.vatland.no\/wp-content\/uploads\/2015\/09\/installerror.png?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.vatland.no\/wp-content\/uploads\/2015\/09\/installerror.png?resize=350%2C200 1x, https:\/\/i0.wp.com\/www.vatland.no\/wp-content\/uploads\/2015\/09\/installerror.png?resize=525%2C300 1.5x"},"classes":[]},{"id":205,"url":"https:\/\/www.vatland.no\/index.php\/publish-lync-2013-web-services-using-windows-2012r2\/","url_meta":{"origin":65,"position":1},"title":"Publish Lync 2013 web services using Windows 2012R2","author":"Atle","date":"June 10, 2014","format":false,"excerpt":"Do you want to publish Lync 2013 web services\u00a0using something\u00a0other than TMG or UAG now that they are getting closer to the end? Doug Deitterick has a nice how to guide. You will find this guide\u00a0on TechNet.\u00a0 Take a look at\u00a0 : http:\/\/blogs.technet.com\/b\/dodeitte\/archive\/2013\/10\/29\/how-to-publish-lync-server-2013-web-services-with-windows-server-2012-r2-web-application-proxy.aspx","rel":"","context":"In "Lync"","block_context":{"text":"Lync","link":"https:\/\/www.vatland.no\/index.php\/category\/lync\/"},"img":{"alt_text":"arr","src":"https:\/\/i0.wp.com\/www.vatland.no\/wp-content\/uploads\/2014\/06\/arr.gif?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":26,"url":"https:\/\/www.vatland.no\/index.php\/replacement-for-tmg-reverse-proxy\/","url_meta":{"origin":65,"position":2},"title":"Replacement for TMG reverse proxy.","author":"Atle","date":"January 7, 2014","format":false,"excerpt":"Are you looking for a replacement for TMG now that its end is nearing. You could buy a thirdparty reverseproxy from Sophos og some appliance. The simplest solution is probably to install a Windows server 2012(R2) and add ARR module to IIS.To install this module you would use the Microsoft\u2026","rel":"","context":"In "Exchange"","block_context":{"text":"Exchange","link":"https:\/\/www.vatland.no\/index.php\/category\/exchange\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":746,"url":"https:\/\/www.vatland.no\/index.php\/no-connectivity-with-any-of-web-conferencing-servers\/","url_meta":{"origin":65,"position":3},"title":"No connectivity with any of Web Conferencing Servers.","author":"Atle","date":"December 8, 2017","format":false,"excerpt":"This event started to appear every 20 seconds or so. The Skype for Business servers had recently been patched. In the patch list was updates to .Net framework. Included in these patches is a security update that resolves an security bypass feature. https:\/\/support.microsoft.com\/en-us\/help\/4014510\/description-of-the-security-and-quality-rollup-for-the-net-framework-4\u00a0. To solve this all I had to\u2026","rel":"","context":"In "Lync"","block_context":{"text":"Lync","link":"https:\/\/www.vatland.no\/index.php\/category\/lync\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.vatland.no\/wp-content\/uploads\/2017\/12\/SkypeEventID41026.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.vatland.no\/wp-content\/uploads\/2017\/12\/SkypeEventID41026.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/www.vatland.no\/wp-content\/uploads\/2017\/12\/SkypeEventID41026.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.vatland.no\/wp-content\/uploads\/2017\/12\/SkypeEventID41026.jpg?resize=700%2C400 2x"},"classes":[]},{"id":164,"url":"https:\/\/www.vatland.no\/index.php\/https-session-reset\/","url_meta":{"origin":65,"position":4},"title":"HTTPS\/SSL session reset.","author":"Atle","date":"May 14, 2014","format":false,"excerpt":"When Publishing a Windows 2012R2 web site using F5 it all works fine as long as you publish HTTP. 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