A client with a 2012R2 environment with a Virtual 2012R2 host with essential pack and a second virtual 2012R2 host with Exchange 2013 switch from internet provider.
They first had an ADSL connection with 3-4mbit down and 600kb up. They switched to a fiber connection with a 50/50 connection. The mail incoming and outgoing is working fine. Browsing on the fileserver works fine to.
The Windows 8 clients however have troubles reaching several sites. When i try these on the fileserver, they work correctly.
What could this be? What adjustments do i have to make to the DNS server after changing fro internet provider?