Need advice on Xbox Music problem

My problem is not being able to play music. It throws up an error message with the code 0xc00d11cd (0x8004b82e). The first code gets me responses online. The second doesn't. The advice I've seen about the first code all seem relevant to my issue more or less. The troubleshooting methods given have all failed. I've played with account settings, region settings, updated apps, synced things, changed users, etc. I've even created registry entries where they didn't exist, because one suggestion was to change a value here and I didn't even have the setting to begin with. So, what next? How do I fix this, or where do I look for a fix?