Red Dead Online Error Code 0x21002001 Troubleshooting on PlayStation 4
Last Updated: September 8, 2025
Question: What can I do about the following error while playing Red Dead Online on PS4?
You have been disconnected from Red Dead Online because the connection to Rockstar Games Services was lost [Error: 0x21002001]
Answer: This error is a result of a connectivity issue. If you are experiencing a poor connection while playing Red Dead Online on PS4, the following steps may help resolve the problem:
Check your network connection and Rockstar Games Service availability
Check to make sure your internet connection is working properly
Check the Rockstar Games Service Status for server outages or scheduled maintenance:
If the Red Dead Online Status currently says Up, the problem may be related to some connection types conflicting with other players or other problems with your network setup.
Check your internet connection speed
Go to Settings
Select Network
Select Test Internet Connection
Below are good targets for minimum upload and download speeds:
Download Speed: 7.5 Mbps
Upload Speed (recommended): 1 Mbps
Upload Speed (minimum): 0.5 Mbps
Note: If you are on a wireless connection and still having issues, try a wired connection.
Check your Network Address Translation (NAT) Type settings
Go to Settings
Select Network
Select View Connection Status
Scroll down to see your NAT Type. A more open NAT Type will have fewer conflicts and connectivity issues with other players. Below are definitions for the different NAT Types:
NAT Type 1 (Open): Can play games with any NAT Type
NAT Type 2 (Moderate): Can play games with open or moderate NAT Types
NAT Type 3 (Strict): Can only play games with open NAT Types
Check your open network ports
PlayStation Network uses the following ports for communication with game servers:
Port 80 (TCP)
Port 443 (TCP)
Port 3478 (UDP and TCP)
Port 3479 (UDP and TCP)
Port 3480 (TCP)
Red Dead Online requires the following ports to be open:
Port 6672 (UDP)
Port 61455 (UDP)
Port 61457 (UDP)
Port 61456 (UDP)
Port 61458 (UDP)
Change your Domain Name Servers (DNS)
Open the Home Screen
Go to Settings
Select Network
Select Set Up Internet Connection
Select Wi-Fi/LAN (depending on what you use to connect)
Select Custom
For IP Address Settings, select Automatic
For DHCP Host Name, select Do Not Specify
For DNS Settings, select Manual
Enter the following DNS addresses in their respective field:
Primary DNS = 8.8.8.8
Secondary DNS = 8.8.4.4
For MTU Settings, select Automatic
For Proxy Server, select Do Not Use
Reset your network router
You can reset your router by unplugging it and leaving it unplugged for about 10 minutes. Once you plug your router back in and can connect to the internet, launch Red Dead Online and check to see if your issue is resolved.