PS4 error NP-31928-3 is an error that usually occurs when the remote Network Server the console is trying to connect to is unavailable thus making it unable to load the game data.
Some of the solutions to this error include turning your PS4 and modem router off, and checking for a System Software Update.
Please see our in-depth walk-through solutions below.
PS4 error NP-31928-3 may be caused by your PS4 or modem router. If you are removed from the party chat due to this error, you may want to refresh your connection towards your internet service provider (ISP). Please turn off then unplug your modem router and your PS4 for at least three minutes to flush out the cache in the device's memory. If you are playing with friends, ask them to do a power cycle, too to make sure the error was not caused by their end.
If the power cycle did not work, try to connect to your mobile phone data internet connection. Or, if your neighbor has a different ISP, ask for their permission to connect your PS4 for troubleshooting purposes only. If the error did not occur, it is possible that the error NP-31928-3 is due to your ISP. Call your ISP may also help.
To check for updates, go to settings and look for System Software Update.
If no update was found, double check it by accessing Safe Mode using this YouTube video tutorial here or see steps below.
Step 1. Access Safe mode
Step 2. Select Update System Software
If there was no available update, you may want to wait for PlayStation to fix this issue.
If PS4 error NP-31928-3 still appears, try to manually update your PlayStation 4 using the instruction below or watch it here on YouTube. You will need a USB flash drive and a computer to manually install the system update.