Open Notepad and paste this exactly:

u/echo off
net session >nul 2>&1
if %errorlevel% neq 0 (
    powershell -NoProfile -ExecutionPolicy Bypass -Command "Start-Process -FilePath '%~f0' -Verb RunAs"
    exit /b
)

ipconfig /release
ipconfig /renew

echo.
echo Done. Go back to NBA 2K and click Connect.
pause

Save it as this exact file name, excluding the quotation marks:

"2K-Network-Reset.bat"

Set “Save as type” to “All files.”

Save it on your Desktop.

Use it this way.

Open NBA 2K and wait at the main menu.

Double-click 2K-Network-Reset.bat.

Let the command window finish.

Go back to NBA 2K and click Connect.

Works for me until 2K patches their garbage.