A few NBA 2k21 players are currently facing error 727e66ac while playing the game. NBA 2k21 error code 727e66ac could trigger through various reasons, most likely network connection related. Unfortunately, 2K games consider NBA 2K21 error 727e66ac as an unidentified error. Read more details below.
NBA 2K21 error 727e66ac is most likely network connection related problem. However, the game developers 2K games consider it as an unidentified error.
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.
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
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:
Change your DNS and update it with the following.
PRIMARY: 188.8.131.52 (Open DNS)
SECONDARY: 184.108.40.206 (Open DNS)
PRIMARY: 220.127.116.11 (google DNS)
SECONDARY: 18.104.22.168 (google DNS)
Restart your console:
Make sure your game software is up to date:
Make sure your PS4’s system software has the most recent update:
An upcoming update will fix NBA 2k21 error 727e66ac issue.