A colleague of mine has installed DNN8 on his local PC and moved it to our Server (SBS 2011 Standard). After setting up the Apppools the website would load with all the content it had before the move.
The problem I'm now facing is, that when trying to login it will take a couple of seconds and then prompt me with "Der Dienst ist nicht verfügbar." - ("The service is not available"). The database moved with the installation (MSSQL 2012).
I suspected it to be an issue with moving the installation so I created a new one from scratch on the server directly but lo and behold the same issue reappeared.
The logs for ease of use on pastebin: http://pastebin.com/ds04w3A
.NET Framework v4.6.00081 (installed)
IIS uses .NET v4.0.30319
MSSQL Server 2012
SBS 2011 Standard
The weird thing is that DNN9 works perfectly fine with the same apppool in IIS