How do I turn on the pinging feature which stopped working?

Hello fugitivo,

Thank you for posting in the Apple Support Communities. It sounds like notifications aren't working right on your iPhone. We're here for you.

We recommend following the steps in the below support article since they have resolved similar concerns in the past:

Change notification settings on iPhone

If your issue isn't related to notifications, you might consider providing more information about what you’re experiencing. Including the following details in your post may be helpful:

1. What’s happening? If you receive an error message, what does it say?
2. What device is this happening with? Which software version?
3. Are you able to reproduce the issue with other apps? What actions do you take to reproduce it?

The more information you provide, the better chance the community will be able to offer some additional guidance.

Have a great day!