Orange - no data transfer on ipv6


Jul 14, 2019
On my Redmi 5 I tried all possible options for ipv6 and no effect, the Internet does not work (including default APN settings)
Is it some kind of a software issue (I currently have a stable MIUI, doesn't this Redmi 5 support ipv6?
I changed SIM card into new one, made factory defaults with no effect.

Sometimes there was also a problem with ipv4, i.e. every few hours (regularly) mobile data "freezed". - I mean, there's no internet at full network coverage.
The mobile data must then be reset (e.g. by switching to airplane mode for a moment or switching off and back on the mobile data).

Do you have any ideas about this? Thank you in advance for your help.