Modern Warfare Unable to Access Online Services: How to Fix Bug

Modern Warfare tells players they are "unable to access online services," and it's not always apparent what's causing the disconnect. The problem could as easily be server-side as client-side. Here's how to find out whether the problem is your connection or server trouble.

Modern Warfare Unable to Access Online Services: How to Fix Bug

The first thing to check when receiving the "Unable to Access Online Services" message is the status of Call of Duty: Modern Warfare's servers. There are two reliable ways to do this. First, check Activision's official online services site here for word from the publisher itself. Second, a third-party site like Downdetector that relies on crowd-sourced reports can be checked.

If neither of these sources indicates a problem on the server side, the problem may be your own connection. Try restarting your console, resetting your router, and switching to a wired connection. If the problem persists, you may need to look into this port forwarding guide from Activision.