Unable to Connect to Online Services
Activision Call of Duty
Severity:What Does This Error Mean?
Unable to Connect to Online Services in Call of Duty means the game cannot reach Activision's servers. This is most often caused by an Activision server outage, a strict NAT type blocking multiplayer, or your network needing a restart. Check the Activision server status page before changing any settings.
Affected Models
- Call of Duty: Warzone
- Call of Duty: Modern Warfare II
- Call of Duty: Modern Warfare III
- Call of Duty: Black Ops 6
- Call of Duty mobile
Common Causes
- Activision server outage or scheduled maintenance
- Strict NAT type preventing multiplayer connections
- Router firewall blocking game traffic
- Account has been temporarily restricted by Activision
- Game needs an update before connecting to online services
How to Fix It
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Check the Activision server status at support.activision.com/onlinestatus. If servers are down, wait for Activision to restore service.
Server outages are the most common cause of this error — especially after a major game update or event. There is nothing you can fix on your end during an outage.
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Check your NAT type. On PlayStation go to Network > View Connection Status. On Xbox go to Settings > General > Network Settings. NAT should be Open or Moderate.
A Strict NAT type blocks many multiplayer connections. If your NAT is Strict, enabling UPnP on your router usually changes it to Open automatically.
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Restart your router and console or PC. Power off the router for 30 seconds, then restart your gaming device.
A network restart refreshes the IP address and DNS cache. This fixes many temporary connection errors that are not caused by server outages.
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Check for a pending Call of Duty update. Outdated game versions are often blocked from connecting to online services after a major patch.
On console, go to the game in your library and check for updates. On PC (Battle.net or Steam), the launcher should prompt you automatically.
Frequently Asked Questions
How long do Call of Duty server outages usually last?
Planned maintenance typically lasts 1-3 hours and is announced in advance on the Activision Twitter/X account. Unplanned outages after a big update can last a few hours. Check @CallofDuty on social media for live updates.
Can my account get banned for this error?
No — this error means you cannot connect to servers, not that your account is banned. If your account has been restricted you would see a different, specific error about your account status.