What could be the problem: Mobile Internet on the tablet does not work with sim from BeeLine, is it normal with the rest?

Question

Android

There is a tablet, a certain RoverPad Tesla 10.1 (MTK6572), Android 4.2.2
Wi-Fi works OK, 2G from Tele2 is OK, 3G from MegaFon is OK.
But the Internet does not work with Sims from BeeLine.
I checked on two SIM cards, the tariffs are different, one is zero. On other devices everything is fine, on this it does not work. At the same time, voice communication is normal, but there is no Internet = ( I checked
the Access Point settings several times - everything is normal and identical to other devices.
What could be the reason?
in the beeline at 0880 and order the settings via SMS, then on this tablet they say "the service is temporarily not available to you", I put the SIM card in another tablet - we will send all the rules now

Answer 1

I solved the problem, it turns out I had to choose the PAP authentication type. Why isn't this written anywhere?

Answer 2

maybe no internet settings?