Connection to remote SQL server breaks when upgrading web server to .net framework 4.6.1

Question

We\'re currently working on updating our asp.net web application (hosted on IIS 7.5) from .net framework v4.5 to v4.6.1. On small lower environments/local development in which S

Answer 1

First of all - this issue appears only when you're using Active Directory authentication.

I've managed dirty-fix: add your MSSQL server to your local (machine which can not connect to MSSQL server) hosts file (%windir%\system32\drivers\etc\hosts).

For example: 192.168.0.5 mssqlserver

It realy doesn't matter the name. It also works well if you have multiple SQL servers on one IP address (connecting through NAT).

This dirty-fix will also fix slow loading using SQL Management Studio issue.