Internet works fine from the MS Server 2012 R2 essentials server. For some reason all workstations do not have internet access unless I point the DNS in the workstation to the router IP. That only works for a few minutes and then it sets itself back on the workstation to the server IP address in the DNS to be used.
First, how can the workstation set itself back to the server IP address in the DNS field?
Second why does the server all the sudden not provide internet for all workstations.
Has worked for over a year now. Where do I go from here? Any help would be appreciated. I am not at the location at the moment, so I can't check anything right now but would appreciate some troubleshooting steps for when I get back to the office. Thank you and a happy new year.