Are you guys using Whatsapp with the same number in another device? That will invalidate the registration immediately.

If that's not the case then maybe new registrations are not working and Whatsapp must have changed something again. I don't know, I would have to test it, but right now I'm focusing in fixing bugs and making a stable client for current users, not new ones. I'm not sure when I would have the time to revisit registration issues again with Yappari.

Sorry.

Try deleting your yappari.conf file and registering again, since in the logs I've seen you register successfully but somehow Whatsapp invalidate your registrations and you appeared as "not registered" again in Whatsapp servers.

Now, if Whatsapp Inc. has a way to know that the registrations come from a third-party application and are invalidating those then you're out of luck and you will never be able to register.