How to fix DMZ instance inventory is idle error in Modern Warfare 3

Want to know how to fix the DMZ doesn't work due to instance inventory is idle error in Modern Warfare 3? It's a common issue, especially early on, so you're not alone.

While the game hasn't been officially out, a lot of players have gotten their hands on early access to try out all the features within the game, one of them being DMZ missions. These are narrative-based missions that provide exclusive rewards and a lot of XP.

Sadly, a lot of players are getting hit by the aforementioned DMZ instance inventory is idle error. Similar to the recent occurrences of error code Chastise, let's help you find a solution for this on Modern Warfare 3.

Credit: Activision

Modern Warfare 3 - DMZ instance inventory is idle error fix

This is not a new error in Call of Duy games, with it being a known bug in recent entries. Some of the solutions we could find online include:

• Exit the DMZ mode and head out to the main menu. Wait a few seconds then go back to the DMZ menu but don't start the match. Theoretically, this should fix the issue
• If the above doesn't work, players have reported that this error often resolves automatically. So it may be for the best to just to wait it out.
• If you have crossplay off, you might want to try enabling it to see if this makes the error go away as well. Even if you're not in the mood for using this feature, try doing it and loading up a match, then disable it for the next round, there should be no DMZ instance inventory is idle message again.

As you can see, there's not a lot you can do on your, end since this isn't a specific bug with a known solution. It's simply one that pops up every now and then, disrupting players who want to enjoy some time grinding out DMZ missions.