Q. How do I enable BranchCache?

Open a Group Policy Object.

Navigate to Computer Configuration, then Policies, Administrative Templates, Network, Lanman Server.

Double-click Hash Publication for BranchCache.

Set this to Enabled, then configure when the hash should be generated, as shown here. You can generate hashes if a folder is shared and enabled for cache (recommended), never generate a hash, or generate a hash for every shared folder. Make a choice and click OK.

Right-click the shared folder in Explorer and select Properties.

Select the Sharing tab.

Click the Advanced Sharing button.

Click the Caching button.

Check the Enable BranchCache option, as shown here, and click OK to close all dialogs.

Navigate to Computer Configuration, then Policies, Administrative Templates, Network, BranchCache.

Double-click Turn on BranchCache and set it to Enabled.

Because you're using distributed BranchCache, double-click Set BranchCache Distributed Cache mode and set it to Enabled.

You can also configure the latency required before caching is used. You probably don't want to cache data if the connection is very fast, so you might only cache if the latency is over 70 ms. Double-click Configure BranchCache for network files, set it to Enabled and set the latency. In the example here, I set latency to 0, so everything is cached.

Note that you can also set the amount of disk space to be used for the cache on clients. The default value is 5 percent. Use the Set percentage of disk space used for client computer cache option to set this value.

Navigate to Computer Configuration then Policies, Windows Settings, Windows Firewall with Advanced Security, Inbound Rules.

Select New Rule from the right-click menu.

Under HTTP, Port, TCP 80, create a rule to allow all profiles (or just a domain, depending on environment). Also create a rule under WS-Discovery, Port, UDP 3702 to allow all profiles (or, again, just a domain), as shown here.

Close the GPO