THIS WORKS FOR ME... Its a copy of other post!
Alright you guys .. I believe I found a solution.
This is to change the MTU setting on your PS4.
Navigate to [Settings] > [Network].
Here you will find four (4) options, Choose [Set Up Internet Connection].
Now choose either [Use Wi-Fi] or [Use LAN Cable]
If using Wi-Fi – Enter your existing access point password and continue below.
If using LAN – Continue below.
Choose [Custom] on the next screen.
Select your normal settings for IP Address Settings. (Note: If you do not know this setting use [Automatic].
Select your normal settings for DHCP Host Name. (Note: If you do not know this setting use [Do Not Specify].
Select your normal settings for DNS Settings. (Note: If you do not know this setting use [Automatic].
Select [Manual] for MTU Settings.
Press enter to pull up the keypad and enter a new value and press X.
First use the MTU value of 1473.
If the connection test is unsuccessful, try the MTU value of 1450.
Select [Next] to continue.
Select your normal settings for Proxy Server. (Note: If you do not know this setting use [Do Not Use].
Next – [Test Internet Connection]
You will see a value under (PSN Sign-In – Successful) if this process was successful.
If you've been having this problem, try this out! It worked for me and i Hope it works out for everyone!
yay! - changing the custom settings worked for me - thanks
but what is amazing is that we're buying this product 2 years later from these posts (on special offer from the playstore) and it is STILL is an issue that I had to spend one hour finding a solution for. And my son is having to play from my account because we still can't figure out the issue with his age restrictions even though he is 10.
Anyway - pleased I scrolled through to the third page of comments to find this!
