Network Credentials issue, win 8.1 client & Server 2008 AD

I have just replaced an old XP box with our first Windows 8.1 Pro client. Joined the domain (Server 2008 R2, using active directory), seamed quite normal. When I rebooted, I received the normal windows logon screen, user name & password, entered those and logged in. The problem being, all resources on the network required me to enter network credentials. For example, try and double click on file server get following 'Windows Security' window:
Enter network credentials. Enter your credentials to connect to: SERVER.
The system cannot contact a domain controller to service the authentication request. Please try again later

I have: unjoined and rejoined client to domain; Checked active directory and the computer is correctly registered. Nothing is helping. Please help.
Mark

According to Paul Thurrott you need to add the credentials by going into the Windows vault per method #2 in the link below. If you don't add the credentials to the vault then Windows won't remember them despite checking the box to remember credentials.

He is using Windows server 08 and Homegroups with Windows 8 and he shows both methods to access network shares on the server.

http://winsupersite.com/article/windows8/windows-8-tip-seamless-home-network-access-142716

No comment about the link I posed here>???

By the way I know this is solved, hoping you can come back to confirm this.