When I try to connect to my friend, I get a connection error, and vice versa. I have a PlayStation 4, a friend has a PlayStation 4 too, both have successfully logged into their Microsoft account, there is a subscription to 'PlayStation +', a week ago everything worked and we played with it. Both tried to restart: PlayStation, Minecraft and the Internet. We also tried to delete and download the game again, nothing worked.
Related issues
Comments

Thank you for your report!
We're actually already tracking this issue at MCPE-58587, so I will resolve and link this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – ✍️ Feedback and Suggestions – 📖 Game Wiki