Tvheadend

Hi, i got a strange problem, i can watch for example history channel hd but when i try to record it i get "can not descramble service", any ides? It works both ways for another hd channel but for some i get this problem and tvheadend is almost unreachable through the webinterface, totally locks up just during the record

May 10 11:07:15 server tvheadend³⁴⁷⁵: dvr: entry 124 "The Legend Of Shelby The Swamp Man" on "History Chnl HD" starting at 2014-05-10 10:58:00, scheduled for recording by "pedda"
May 10 11:07:15 server tvheadend³⁴⁷⁵: dvr: "The Legend Of Shelby The Swamp Man" on "History Chnl HD" recorder starting
May 10 11:07:15 server tvheadend³⁴⁷⁵: subscription: "DVR: The Legend Of Shelby The Swamp Man" subscribing on "History Chnl HD", weight: 300, adapter: "3s", network: "Telenor", mux: "Telenor: 12,015,000 kHz Horizontal (Default (Port 0, Universal LNB))", provider: "Telenor", service: "History Chnl HD", quality: 100
May 10 11:07:15 server tvheadend³⁴⁷⁵: cwc: Can not descramble service "History Chnl HD", access denied (seqno: 1304 Req delay: 4 ms)
May 10 11:07:15 server tvheadend³⁴⁷⁵: cwc: Can not descramble service "History Chnl HD", access denied (seqno: 1302 Req delay: 4 ms)
May 10 11:07:16 server tvheadend³⁴⁷⁵: cwc: Delete ECM (PID 7164) for service "History Chnl HD"
May 10 11:07:16 server tvheadend³⁴⁷⁵: cwc: Delete ECM (PID 7162) for service "History Chnl HD"
May 10 11:07:16 server tvheadend³⁴⁷⁵: cwc: Delete ECM (PID 7163) for service "History Chnl HD"
May 10 11:07:16 server tvheadend³⁴⁷⁵: cwc: Delete ECM (PID 7161) for service "History Chnl HD"
May 10 11:07:16 server tvheadend³⁴⁷⁵: cwc: Delete ECM (PID 7165) for service "History Chnl HD"