I've an issue with HD channels on my DM800HD (second stage loader 70 + gemini2 4.0.0) with CCcam 2.0.11+ newcs 1.62

With free HD channels like Suisse HD, it's ok but the encrypted ones (eurosp.rt HD, Sk. HD) are freezing after 30s.
I have to zap and come back on this channel

Any idea to solve this problem ?