How can I get a Managed Service Account to use internet proxy settings from Group Policy?

I have a service running on a Windows 2012 R2 domain member server that requires internet access. The service is configured to run under a Managed Service Account and the account is granted local administrator priveliges on the domain member. Group Policy Preferences are used to configure the web proxy settings for all users and the relevant group policy is linked at the domain top level.

The managed service account exists in the default container for such accounts under the top level, however it does not seem to get these settings applied to it's registry hive under HKEY_USERS, and manually adding the settings to the relevant hive does not seem to have any effect either. How can I apply proxy settings to a managed service account in the same fashion as any other normal domain account?

Policies don't really apply to services because they don't have an interactive login. There are exception like a password policy, but that is because the policy is actually being applied to the DC.

My guess is you have logged into the server at some point with the OLD credential, and that is why there is a profile and a policy applied to that profile.

If your needing the service to use specific networking settings, you will need to apply those settings to the actual server since a service login normally does not have a full profile established for it.