PS4 error NW-31194-8 is an error that usually occurs when there is a problem with the internet connection on the PS4.
Some of the solutions to this error include checking the PlayStation Network (PSN) for maintenance, checking your internet connection, and setting the network configuration to static.
Please see our in-depth walk-through solutions below.
Solution 1. Check PlayStation Network (PSN) for maintenance
“PS4 error NW-31194-8” may be caused by ongoing PSN server maintenance. Please see the link here to confirm. If the PSN server status is up, PSN server might be under emergency maintenance, check the link later for an update.
In addition, to confirm PSN server maintenance, check their official social media page and forums. If confirmed, the fix is to wait. If a report that says the server is up, please check for any PlayStation 4 System Update.
If the error persists after confirming that the server is up, your internet connection may be the cause.
Solution 2. Check Internet Connection
“PS4 error NW-31194-8” may also be caused by your home network or your internet service provider (ISP). To confirm, please see below.
Solution 3. Set Network Configuration to Static
“PS4 error NW-31194-8” may also be caused by unstable configuration. Please make your connection to static.
To set your Internet protocol (IP) address, go to “View connection” take a picture of it or copy it to a paper.
For the domain name system (DNS) server, call your ISP and ask for a DNS server. You may also use Google public DNS, which is 18.104.22.168 and 22.214.171.124.
Set Maximum Transmission Unit (MTU) to any of this range 1473 to 1500. This sets how large a packet you could send to your router.
To set the IP address to static and set a domain name system (DNS) using the router see this YouTube video here.