NW-35978-2 Error on PS4 or PS5? Here’s the Fix!

Do you see an NW-35978-2 error code on your PS4 or PS5?

The Playstation 4 is one of the most successful models of the entire franchise, and the PS5 promises to have a lot of potential in the coming years. One of the best features of these consoles is wireless connectivity. 

This allows its users to connect to the internet without the need for LAN cables. It is also easier to place your console anywhere in the house since you connect to the internet using Wi-Fi. 

However, if you’re here, you probably wonder why an NW-35978-2 error code occurs on your PS4 or PS5 when connecting to your home network. 

As it turns out, this problem might be due to server related issues, or the current version of your system has a bug or glitch related to wireless connectivity. 

To help you out, we’ve decided to make a guide for fixing the NW-35978-2 error code on your PS4 or PS5. 

Let’s jump right in!

1. Check Playstation’s Servers. 

Before making any changes to your PS4 or PS5, the first thing that you should do is confirm if the problem is on your end or PSN’s side. You can do this by visiting their dedicated status page, where you can check the availability of their services. 

PSN Status

If the servers are down, there’s nothing you can do right now since you can’t address server-related issues on your end. 

On the other hand, you can proceed to the following solution below if there’s nothing wrong with PSN’s servers. 

2. Restart Your PS4 or PS5. 

If your Playstation refuses to connect to the Wi-Fi, you may be experiencing a temporary bug or glitch. To rule this out, restart your device to reload its resources and eliminate any errors in the process. 

For the PS4, you can restart it by doing the following steps: 

  1. On your controller, press and hold the PS button to access the Quick Menu.
  2. Now, navigate to the Power tab and highlight Restart PS4
  3. Finally, press the O or X button on your controller to confirm your action. 
Restart PS4

If you are using a PS5, here’s how you can restart your console: 

  1. First, get your controller and press the PS button
  2. After that, select Restart PS5.
  3. Lastly, press the O or X button and wait for your PS5 to restart.
NW-35978-2 error code on PS4 or PS5

Once done, try connecting to your wireless network again to check if the problem is solved. 

3. Connect Other Devices. 

Another thing that you can do if you see the NW-35978-2 error code on your PS4 or PS5 is to check if other devices can connect to your network. This way, you can identify if the problem is on your console or your network. 

If other devices can connect to your network, it means that the issue is with your PS4 or PS5. 

4. Check If You’re Using the Correct Password. 

You may have mixed up your wireless network’s password, which caused your console not to connect with your router or modem. Since most devices stay connected to wireless networks, it is common for users to forget their Wi-Fi’s password from time to time. 

To check if you are using the correct password, try connecting other devices using the same credentials. You can also ask other persons in your house and see if they recall your network’s password. 

PS4 Wifi Password

Finally, you can also get in touch with your network admin and ask them to reset your Wi-Fi password, or you can do it yourself if you know how to. 

5. Restart Your Modem/Router.

If other devices also refuse to connect with your wireless network, it means that the problem is with your modem or router. Power cycle your network router to reload its firmware and refresh the connection with your ISP. 

Check out the steps below to restart your modem or router: 

  1. First, locate the Power Cable of your Router and unplug it from the outlet. 
  2. After that, wait for around 5 to 10 seconds
  3. Lastly, reconnect the Power Cable to the wall outlet to restart your Modem or Router.
Restart Router

Once done, go back to your PS4 or PS5 and try connecting to the Wi-Fi again. 

6. Check for Signal Interruptions. 

Another reason your PS4 or PS55 won’t connect to your wireless connection is that it’s not getting enough signal. If your console is too far away from the modem or router, consider repositioning your modem or Playstation. 

You can also check if any devices interfere with your router’s signal, such as radios, microwaves, and other wireless devices. 

NW-35978-2 error code on PS4 or PS5

On the other hand, you can also use a LAN cable if moving your console and router closer is not possible. 

7. Update Your PS4 or PS5. 

Your PS4 or PS5’s current system version may have an underlying issue related to wireless connectivity, which causes your console not to connect to the Wi-Fi. To fix this, simply update your Playstation to the latest version possible.

Before doing this, take note that you have to use a LAN cable to connect to the Internet.

On the PS4, you can check for updates by doing the following: 

  1. First, go to Settings and click on System Software Update
  2. After that, click on the Update Now button. 
  3. Lastly, click the Accept button if there’s an available update and follow the on-screen prompts. 
NW-35978-2 error code on PS4 or PS5

If you are using a PS5, check out the steps below to update your console: 

  1. On your device, go to the Settings and open the System tab. 
  2. Now, navigate to System Software > System Software Update and Settings > Update System Software
  3. Finally, click on Update Using Internet and wait for the process to finish.
NW-35978-2 error code on PS4 or PS5

After updating your device, go back to the Settings and see if the NW-35978-2 error code would still occur while connecting to the Wi-Fi.

8. Report the Problem to Playstation. 

For your last resort, we suggest that you seek the help of the experts if none of the solutions above worked out for you. 

Visit Playstation’s official support page and get in touch with their team to report the problem with your PS4 or PS5. Provide all the necessary details on your report, including a screenshot of the error to help their team understand the situation faster. 

NW-35978-2 error code on PS4 or PS5

You can also visit the nearest service center in your area and have your Playstation checked by professionals for possible hardware failure. 

If you are using a Playstation 4, you can check our detailed guide for fixing the PS4 if it refuses to connect to the Wi-Fi.

This brings us to the end of our guide for fixing the NW-35978-2 error code on the PS4 or PS5. If you have any questions, please don’t hesitate to leave a comment below, and we’ll do our best to help you out. 

If this guide helped you, please share it. 🙂


  • John Sixto

    John is a staff writer at Saint and comes from a SAP ABAP development background. He has a Bachelors in IT and has been writing since 2018, with over 500 posts published. He loves to build PCs and has a deep curiosity in understanding how different components and configurations work. John spends hundreds of hours at a time, researching and testing the software and apps, before he proceeds to write about it. LinkedIn X (Twitter) Website

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