I’m asking to Mikrotik pro to risolve this impossible situation.
Is possible that mikrotik equipment, using nv2 or 802.11, using 912 or 711 RB, can not guarantee stability for my customer when the AP 5ghz exceeds 1M upload??
More information:
I’ve tried to change everything, radio etc.
The PPPoE is on another server and not local.
It’s not possible! 
It is possible. It just takes practice, proper installation, and a little patience. Why don’t you post your exports and network diagram?
network diagrams u means this?
but this diagram too don’t show real Mbps i think!
nobody want to help me?
Ho 4000 clienti, se ci fosse questo problema sarei senza lavoro…
Controlla piuttosto l’installazione del diffusore, cavi, antenna, pigtail, FRESNEL, se è fatta bene e non ci sono disturbi da parte di radar o altri operatori.
Saluti a tutto lo staff della Wirtek 
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I have 4000 customers, if there was this problem I would be out of work …
Check the installation rather, if it is done well and there is no noise from radar or other operators.
Greetings to all the staff of Wirtek