Image drops on Astra 19.2E 12.722H with Premium?

Hello,

I have non stop drops on this transponder (but 85% SNR and no BER)????? With a SatLink I have 89% Signal and 60% Quality ... It's a high frequency on DVB-S2 8PSK

Is a Azbox Tuner problem or a firmware (E2) problem?

Thanx!