Disconnect your router and modem for 60 seconds from the power outlet, then reconnect them to the outlet.Troubleshooting connection issues with your Router: Click on "Choose how updates are delivered.".Under "Windows Update," click on "Advanced options.".Click on the Windows’ Start button, then the Settings button (cogwheel icon).This can potentially cause some network connection issues.
Windows 10 allows users to download (and upload) updates from other Windows 10 users either locally on your network or over the internet using Peer-to-Peer connections.
For Alternate DNS Server, type: 8.8.4.4.For Preferred DNS Server, type: 8.8.8.8.Select "Use the following DNS Server addresses".Click once to select it, then click on the Properties button.Find the line called “Internet Protocol Version 4 (TCP/IPv4).Right click your active connection, then Properties.Type "ncpa.cpl" and press enter to open the Network Connections.On your keyboard, press the Windows key + R.
NOTE: If you are experiencing an "EFEAB30C" or "4B538E50" error code which prevents you from accessing any or all NBA 2K online features, please refer to this article: Verify that other devices on your network can connect to the internet.If you are experiencing disconnections, performance issues (lag) or other error messages when connecting or playing online modes in NBA 2K titles, please refer to the connection troubleshooting below: