From one windows 7 machine I cannot connect anymore to any sql server instance that is in LAN and in same domain of this particular machine. I cannot connect from Management Studio, but also from any client server application.
I use sql serer autentication and this has always worked until a few days ago I installed some vpn software. Now I uninstalled it anyway the problem persisted.
I tried to do from the command prompt
ipconfig /fulshdns (I did "Run as administrator") but it didn't help.
What can it be? Is there a place where I can manually check?