Oscam stürzt in unregelmäßigen abständen ab

Cards: [LOG653]2014/01/23 20:55:29  98A25D8 c user (09C4&000000/012F/002B/B3:E29404E777E227C0BEE5114D8524A7C8): timeout (5001 ms) by skyv13 - Sky Cinema +24
Cards: [LOG654]2014/01/23 20:55:30  9860F58 r um02 [nagra] Resync error: readtimeouts 0/0 (max/min) us, writetimeouts 0/0 (max/min) us
Cards: [LOG655]2014/01/23 20:55:33  98A42A8 c userum (1838&000000/0000/6219/92:CCCC7CB82AC08B9218C30182D7A1C2D4): timeout (5001 ms) by um02 - 13TH STREET HD
Cards: [LOG656]2014/01/23 20:55:34  98A42A8 c userum (1838&000000/0000/0014/92:62628D44A0FD376A3A3F1046F98C7B5D): timeout (5001 ms) by um02 - Sky Emotion
Cards: [LOG657]2014/01/23 20:55:34  98A42A8 c userum (1838&000000/0000/002B/92:ECECDD834F4D7032AB49BEAB1C23347A): timeout (5001 ms) by um02 - Sky Cinema +24
Cards: [LOG658]2014/01/23 20:55:34  985F168 r skyv13 [videoguard2] classD0 ins40: (-2) status not ok 1b 30
Cards: [LOG659]2014/01/23 20:55:34  985F168 r skyv13 [videoguard2] The card is not answering correctly! Restarting reader for safety
Cards: [LOG660]2014/01/23 20:55:41  9860F58 r um02 [nagra] T1 Resync command error, trying to reactivate!
Cards: [LOG661]2014/01/23 20:55:43  9860F58 r um02 [nagra] ATR: xxxxxx
Cards: [LOG662]2014/01/23 20:55:43  9860F58 r um02 [nagra] Init card protocol T1, FI=9, F=512, D=16, N=255
Cards: [LOG663]2014/01/23 20:55:43  9860F58 r um02 [nagra] Setting baudrate to 115200 bps
Cards: [LOG664]2014/01/23 20:55:43  9860F58 r um02 [nagra] Calculated work ETU is 8.94 us reader mhz = 358
Cards: [LOG665]2014/01/23 20:55:43  9860F58 r um02 [nagra] ATR Fsmax is 5 MHz, clocking card to wanted user cardspeed off 3.58 MHz (specified in reader->mhz)
das wiederholt sich dann etwa 3-4 mal, das letzte was im log ist, ist folgendes

Cards: [LOG873]2014/01/23 21:02:10  9860F58 r um02 [nagra] ERROR: not ready to write, timeout=1 ms
Cards: [LOG874]2014/01/23 21:02:10  9860F58 r um02 [nagra] Timeout in IO_Serial_WaitToWrite, delay=0 us, timeout=1242 us