Skype Kuwait problems

Hello,

I am an online teacher and I have regular student in Kuwait.

However it has become impossible to use Skype to communicate. The connection breaks every five minutes and it is often difficult to reconnect.
Two weeks of discussion with the support did not help.
The student is one the most regular of all of mine students.

Does anyone know how to solve this?

We tried viber, imo, discord, all of that but we could not establish a decent connection.

I have good connection with all other students worldwide he has only problem with some of his other teachers.

Thanks for any kind of advice. The situation is dire.