Fix 0XC00D2775 NS_E_DRM_UNABLE_TO_GET_SECURE_CLOCK

Windows Media DRM can't reach the time server it needs to validate licenses. Usually a blocked port, dead WMP Network Sharing service, or bad proxy. Here's the fix.

You've got a DRM-protected WMV that played fine last week. Now Windows Media Player throws NS_E_DRM_UNABLE_TO_GET_SECURE_CLOCK_FROM_SERVER (0XC00D2775) the moment you hit play. The file isn't corrupt. The license is still valid. What happened is your machine couldn't reach Microsoft's secure clock server to verify "now" — and without a trustworthy clock, DRM refuses to grant playback.

I had a client hit this last month on a Windows Server 2019 box serving training videos to field techs. They'd tightened firewall rules over the weekend, blocked outbound HTTP from a service account, and Monday morning every DRM clip was dead. Took ten minutes to trace once I knew where to look.

What the error is actually telling you

DRM licenses have expiry dates, and expiry needs a clock you can trust. Your local system clock is trivially spoofable, so Windows Media DRM fetches time from a Microsoft-hosted secure clock server instead. If that fetch fails — timeout, blocked port, DNS issue, proxy interception, or the WMP service that performs the fetch is dead — you get 0XC00D2775. The error name is literal: NS (namespace) _ E (error) _ DRM _ UNABLE _ TO _ GET _ SECURE _ CLOCK _ FROM _ SERVER.

Common triggers I've seen:

Outbound TCP 80 blocked at the firewall (the clock server uses plain HTTP, not HTTPS)
WMP Network Sharing Service stopped or disabled
Corporate proxy that requires auth but WMP isn't configured with credentials
A VPN split-tunnel that advertises bad DNS for the Microsoft time endpoint
Windows Server Core installs where the media feature set was never fully installed

The clock server endpoint is http://drmlicense.one.microsoft.com/Indivsite/en/Indivit.asp in most configurations. If that URL is unreachable, the error is guaranteed.

Fixes, in order

Confirm the failure. Open a command prompt and run
```
curl -v http://drmlicense.one.microsoft.com/Indivsite/en/Indivit.asp
```
If you get a timeout or connection refused, you've found the problem. If it returns HTML, the endpoint is fine and you should jump to step 5.
Check the firewall and proxy. Allow outbound TCP 80 from the machine (or the service account running WMP). If you're behind a proxy, set it explicitly. In WMP: Tools > Options > Network > Configure Proxy. Uncheck "Use proxy" first to test — if it works without a proxy, that's your culprit. Re-enable it and enter working credentials.
Restart the WMP Network Sharing Service. Even though it sounds unrelated, this service handles DRM handshakes. Open services.msc, find Windows Media Player Network Sharing Service, set Startup Type to Automatic, and start it. I've seen this alone clear 0XC00D2775 on a dozen machines.
Reset the DRM store. If the local DRM cache is corrupt, it can't talk to the server correctly. Close WMP, then rename (don't delete — you might want it back) this folder:
```
%LOCALAPPDATA%\Microsoft\DRM\
```
WMP will rebuild it on next launch. On older Windows Server 2008 R2 boxes the path is %SystemDrive%\Documents and Settings\All Users\DRM\.
Verify DNS. Run nslookup drmlicense.one.microsoft.com. If it doesn't resolve, or resolves to something odd (a sinkhole, an internal web filter), fix DNS on that NIC. Split-tunnel VPNs are notorious for this — the VPN pushes a DNS server that doesn't know Microsoft's domains.
Re-individualize the DRM components. Microsoft's individualization page rebuilds the secure clock components. Visit http://drmlicense.one.microsoft.com/Indivsite/en/Indivit.asp in Internet Explorer or Edge with IE mode enabled. It'll prompt you to upgrade the DRM security components. Say yes. This alone fixes cases where the local DRM binaries are outdated and refuse to negotiate the secure clock protocol.

If it still fails

Check the system time and timezone. A wildly wrong local clock — more than a few hours off — can confuse the DRM subsystem's initial handshake even though it doesn't rely on the local clock for the final value. Sync it:

w32tm /resync

Then check the Windows event log under Applications and Services > Microsoft > Windows > Media Foundation for the exact failure detail. If you see NS_E_DRM_NEEDS_INDIVIDUALIZATION (0xC00D2768) nearby, you skipped step 6.

One last thing. If this is a virtual machine that got cloned or restored from a snapshot, the DRM hardware binding can break silently. Re-run individualization inside the VM. I've burned an hour on that exact scenario before I learned to check it first.