[Fixed] Error Code 727e66ac Issue on PS4 and Xbox One

Many players are facing error code 727e66ac on PS4 and Xbox One while playing the NBA 2K20 game. 2K error code 727e66ac could trigger through various reasons, most likely network connection related. Unfortunately, 2K games consider it as an unidentified error. However, we have posted some workarounds and fixes for this problem. Check out full details below.

How to Fix NBA 2k20 error code 727e66ac on PS4 and Xbox One

Fix 1

Try making another player. Upon making the player skip the prelude and your new player should load right up no issue. You can then quit to the main menu and load your original player up and the NBA 2K21 727e66ac error should be gone.

Fix 2

Check your Network Address Translation (NAT) Type settings

Open NAT Type will have fewer conflicts with other player systems and encounter less connectivity issues.

NAT Type Settings

1. Navigate to your console’s XMB
2. Push up on the left control stick
3. Navigate to the Settings panel and choose Network
4. Under the View Connection Status
5. Your NAT Type will be on the bottom of the next screen

Check your Firewall / Router for NAT Type restrictions

If you have a firewall or other network hardware, such as a router, you may need to access them to change your NAT type. Sometimes this configuration change is caused by opening or forwarding other network ports.

Check your Open Network Ports

PlayStation Network uses the following ports for communication with game servers:

• Port 465 (TCP)
• Port 983 (TCP)
• Port 1935 (TCP)
• 3478 (TCP)
• 3479 (TCP)
• 3480 (TCP)
• Port 3478 (UDP)
• Port 3479 (UDP)
• 10070 – 10080 (TCP)

Fix 3

Change your DNS and update it with the following.

1. Go to Settings
2. Select Network
3. Select Set Up Internet Connection
4. Select Wifi/LAN (depending on what you use to connect)
5. Select Custom

Select / Enter the following details

• IP Address Settings = Automatic
• DHCP Host Name = Do Not Specify
• DNS Settings = Manual

PRIMARY: 208.67.222.222 (Open DNS)
SECONDARY: 208.67.220.220 (Open DNS)

or

PRIMARY: 8.8.8.8 (google DNS)
SECONDARY: 8.8.4.4 (google DNS)

• MTU Settings: Automatic
• Proxy Server: Do Not Use

More fixes for error 727e66ac

Restart your console:

• Turn off your console and then turn it back on.

Make sure your game software is up to date:

• Go to the PlayStation home screen.
• Highlight the game you’re playing and press the Options button on your controller.
• Select “Check For Update” and install any updates that are available.

Make sure your PS4’s system software has the most recent update:

• Select Settings at the top of the PlayStation home screen.
• Choose “System Software Update” and allow any system updates to install.
• Reboot your PlayStation 4.

Clear your PS4’s cache to fix error 727e66ac:

PLAYSTATION 4

1. Press and hold the PlayStation button on your controller.
2. Select “Turn Off PS4”.
3. Let the PlayStation 4 to fully power down and wait for 10 to 20 seconds.
4. Restart the PlayStation 4.

XBOX ONE

1. Press the Guide button on your controller, go to Settings, and select Restart console. When prompted, select Restart.
2. Alternatively, if the console appears to be frozen or the Guide cannot be accessed, press and hold the Xbox button on the front of the console for about 10 seconds until the console turns off. After the console shuts down, press the Xbox button on the console again to restart.

NBA 2K20 error code 727e66ac on PS4 and Xbox One is a general error indicating that the game has crashed.