You're welcome. This just reminded me of the IT Crowd... Have you tried turning it off and on again.
By disconnecting / reconnecting by trying the APN switch, it might've just put you on a different P-GW that has a different traffic shaping configuration or current state.
By disconnecting / reconnecting by trying the APN switch, it might've just put you on a different P-GW that has a different traffic shaping configuration or current state.