Solved

Server 2012 R2:  .NET framework does not work

Posted on 2016-09-06
4
51 Views
Last Modified: 2016-09-07
Hi,

I am facing issues with .NET framework 2 or possibly 3.5
A production RDP server showed THOUSANDS of app crashes after the installation of a static database (phonebook-style) on friday.  Administration tools such as PowerShell, Server Manager or certain Snap-Ins for MMC cannot be started.  The machine boots just fine and runs applications such as Office or browsers without complaint.  Eventlog cannot be opened.

Support of the presumably offending applications shrugs off all help.  No issues are known.  Support of Datev, a popular and complex German bookkeeping software suite sais only that .NET framework seems to be damaged, which I already knew.  

I am finding many tools to download, install and repair .NET framework, but none of them seem to apply to Server 2012 R2, where .NET framework is a feature of the OS and is not installed from downloads.

Is there anything I can do other than reinstall?  No backup, unfortunately.

Thanks,
Ralph
0
Comment
Question by:Ralph Scharping
  • 2
  • 2
4 Comments
 
LVL 33

Accepted Solution

by:
it_saige earned 500 total points
ID: 41786608
Server 2012 R2 has both .NET 3.5 and .NET 4.5.1 as features of the operating system.  Reinstalling .NET 3.5 is fairly straightforward:

http://www.danielclasson.com/install-net-framework-35-server-2012/
http://blog.dbi-services.com/winows-server-2012-r2-failed-to-install-net-framework-35/

.NET 4.5.1, on the other hand, presents a problem when trying to reinstall as the Windows Graphical Interface is directly depended upon it.  So if you need to reinstall .NET 4.5 you will need to use the following instructions in order to reinstall the .NET 4.5.1 framework:

https://blogs.technet.microsoft.com/askcore/2014/04/24/removing-net-framework-4-54-5-1-removes-windows-20122012r2-ui-and-other-features/

-saige-
0
 
LVL 2

Author Comment

by:Ralph Scharping
ID: 41786779
Well... as I said above, I cannot open the server manager...
0
 
LVL 33

Expert Comment

by:it_saige
ID: 41786984
The first link provides a command line method to install the .NET 3.5 framework as does this technet article:

https://technet.microsoft.com/en-us/library/dn482069.aspx

Most links found provide both a command line method as well as the gui method because not all instances of Server 2012 are running the GUI, take server core for instance.

-saige-
0
 
LVL 2

Author Closing Comment

by:Ralph Scharping
ID: 41787336
The command-line tool seems to use the same things "under the hood" that are failing in the GUI.  Anyway - I got nowhere and reinstalled the machine.
Thanks anyway.
0

Featured Post

How Do You Stack Up Against Your Peers?

With today’s modern enterprise so dependent on digital infrastructures, the impact of major incidents has increased dramatically. Grab the report now to gain insight into how your organization ranks against your peers and learn best-in-class strategies to resolve incidents.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Background Information Recently I have fixed file server permission issues for one of my client. The client has 1800 users and one Windows Server 2008 R2 domain joined file server with 12 TB of data, 250+ shared folders and the folder structure i…
Restoring deleted objects in Active Directory has been a standard feature in Active Directory for many years, yet some admins may not know what is available.
This tutorial will walk an individual through the process of configuring basic necessities in order to use the 2010 version of Data Protection Manager. These include storage, agents, and protection jobs. Launch Data Protection Manager from the deskt…
This tutorial will walk an individual through the process of configuring their Windows Server 2012 domain controller to synchronize its time with a trusted, external resource. Use Google, Bing, or other preferred search engine to locate trusted NTP …

713 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question