Sea of Thieves Error Code CinnamonBeard: How to Fix It

Medium 15-45 minutes Medium Severity Verified June 2026
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Error Code
CinnamonBeard
Brand
Popular Games
Product Type
game
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
15-45 minutes
The CinnamonBeard error code in Sea of Thieves means your network is actively blocking the game's connection to its servers. This is typically caused by a firewall, router settings, or network configuration that is preventing Sea of Thieves from communicating properly. The good news is that this error is almost always fixable with a few network adjustments on your end.
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Tools You'll Need

How to Fix Error Code CinnamonBeard

  1. Restart Your Router and Console or PC

  2. Check Sea of Thieves Server Status

  3. Disable Your Firewall Temporarily to Test

    Never leave your firewall permanently disabled. Only turn it off briefly to test, then re-enable it and add a proper exception instead.

  4. Add Sea of Thieves as a Firewall Exception (PC)

  5. Open Required Network Ports on Your Router

    Use your device's static local IP or assign a reserved IP in your router's DHCP settings to ensure port forwarding rules stay accurate over time.

  6. Enable UPnP on Your Router

  7. Set Your Console or PC to the DMZ (Last Resort)

    Placing a device in the DMZ exposes it directly to the internet. Only do this for gaming consoles, and ensure your console's own firewall is active. Do not place a PC in the DMZ without understanding the security implications.

  8. Flush DNS and Reset Network Stack (PC Only)

  9. Try a Wired Connection Instead of Wi-Fi

  10. Check for VPN or Proxy Interference

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When to Call a Professional

If you have tried all the steps below and the error persists, contact your Internet Service Provider (ISP) to check whether they are blocking specific gaming ports at the network level. If you are on a university, school, or corporate network, contact the network administrator — these networks often block gaming traffic by policy and cannot be unlocked by the end user.

Frequently Asked Questions

What does the CinnamonBeard error mean in Sea of Thieves?
CinnamonBeard is a Sea of Thieves network error that means your device cannot connect to the game's servers because a network component — such as a firewall, router, or ISP — is blocking the connection. It is not a server outage error; it is specific to your local network or internet configuration.
Is CinnamonBeard a server-side or client-side error?
CinnamonBeard is primarily a client-side (your end) error caused by network blocks. However, it is always worth checking the official Sea of Thieves server status first, as server-side issues can sometimes produce similar connection errors. If servers are confirmed online, the problem is on your network.
Why does CinnamonBeard only happen on Wi-Fi?
Some routers apply different firewall rules or NAT settings to wireless devices compared to wired ones. If CinnamonBeard only occurs on Wi-Fi, try switching to a wired Ethernet connection and check your router's wireless isolation or AP isolation settings, as these can block gaming traffic.
Can a VPN cause the CinnamonBeard error in Sea of Thieves?
Yes. VPNs frequently cause CinnamonBeard and other Sea of Thieves connection errors because they route your traffic through servers that may be blocked by Rare's network, create additional network layers that interfere with UDP gaming traffic, or trigger geo-blocking systems. Disable your VPN before playing Sea of Thieves.
How do I fix CinnamonBeard on Xbox?
On Xbox, start by restarting your router and console. Then check your NAT type in Xbox Network Settings — it should be Open for best results. Enable UPnP on your router, or manually forward the required Sea of Thieves ports (TCP/UDP 3074, UDP 88, UDP 500, UDP 3544, UDP 4500, TCP 443) to your Xbox's local IP address in your router's admin panel.

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