Resolution: Visual Studio Test Agent Unable to Connect to the controller. There is no agent registered...

Problem: I discovered a weird quirk with the Visual Studio Test Agents (a.k.a. TFS Test Agents). We were trying to set them up to do some load testing, and were getting the error below.

 Unable to connect to the controller on 'MyController:6901'. There is no agent with the name 'MyAgent' registered on the controller.

If you click on the "View Log" link after attempting to configure the Test Agent, you will see the follwing detailed error:

 V, 2013/10/28, 17:33:25.342, Observed that agent 'MyAgent' does not exist. Microsoft.VisualStudio.TestTools.Exceptions.EqtException: There is no agent with
the name 'MyAgent' registered on the controller.

Resolution: Error during encryption or decryption. System error code 997 in SharePoint

I was recently ran into an issue in SharePoint where my Central Administration web app disappeared. When I tried to redeploy Central Administration, I was confronted with the error below.

An exception of type System.ArgumentException was thrown.  Additional exception information: Error during encryption or decryption. System error code 997.

Everything I saw online said the only option was to create a new config database. Personally, I thought that seemed a bit extreme. Well, I found a better option that worked for me, and will probably work for you too.

SharePoint Navigation Limited to 50 Items

There is a limit set in SharePoint by default which only allows fifty links to show up in the navigation. If you add pages and/or subsites beyond the limit of 50, they stop showing up in the navigation.

The right thing to do would be to re-evaluate your SharePoint site structure at this point. Chances are though, that you will need a more immediate work around to get you past this issue in the meantime.

The limit is set in the PortalSiteMapProvider class in SharePoint. Microsoft’s explanation behind this limit is that “Showing a large number of items in the navigation menu is not useful and can have a negative impact on performance”.

Error! Windows - No Disk: Exception Processing Message c0000013 Parameters 75a851d8 979a26dc 75a851d8 75a851d8

This is one of those errors that doesn't really give you any information to go on. All you really get is this popup message that say Windows - No Disk: Exception Processing Message c0000013 Parameters 75a851d8 979a26dc 75a851d8 75a851d8.