Freesat Karte nicht stabil unter OSCam am IPC

[beton]

Seit ich meine Smargos samt aktiven USB Hub von meiner Vu+ Duo2 hin zum Raspberry Pi 1 migriert habe, läuft meine britische FreesatFromSky Karte nicht mehr stabil unter OSCam. Einige Zeit scheint alles in Ordnung, dann bekomme ich ständig Meldungen "SR: buffer full" und "classD1 ins5C: failed", bis schliesslich der Reader ganz aussteigt.

oscam.server:

Spoiler

[reader]
label                         = freesatfromsky
description                   = /dev/ttyUSB1
protocol                      = smartreader
device                        = Serial:Reader 8AAD57E
smargopatch                   = 1
caid                          = 0963
boxid                         = 12345678
readtiers                     = 2
detect                        = cd
mhz                           = 534
cardmhz                       = 343
ident                         = 0963:000000
group                         = 1
emmcache                      = 1,3,2,0
blockemm-unknown              = 1
blockemm-g                    = 1

oscam.log:

Spoiler

2017/11/19 17:00:51 00000000      (reader) freesatfromsky [videoguard2] SR: buffer full
2017/11/19 17:01:02 08ACC294 r   (reader) freesatfromsky [videoguard2] classD1 ins5C: failed
2017/11/19 17:01:14 08ACC294 r   (reader) freesatfromsky [videoguard2] classD1 ins5C: failed
2017/11/19 17:01:26 08ACC294 r   (reader) freesatfromsky [videoguard2] classD1 ins5C: failed
2017/11/19 17:01:30 08ACC294 r   (reader) freesatfromsky [videoguard2] classD1 ins40: (-2) status not ok 08 00
2017/11/19 17:01:30 08ACC294 r   (reader) freesatfromsky [videoguard2] The card is not answering correctly! Restarting reader for safety
2017/11/19 17:01:31 00000000     (reader) freesatfromsky [videoguard2] SR: buffer full
2017/11/19 17:01:31 08ACC294 r   (reader) freesatfromsky [videoguard2] SR: smartreader closed
2017/11/19 17:01:31 08ACC294 r   (reader) freesatfromsky [videoguard2] creating thread for device Serial:Reader 8AAD57E
2017/11/19 17:01:31 129EF166 r   (reader) freesatfromsky [videoguard2] Smartreader device Serial:Reader 8AAD57E not found
2017/11/19 17:01:31 129EF166 r   (reader) freesatfromsky [videoguard2] Cannot open device: Serial:Reader 8AAD57E
2017/11/19 17:01:33 129EF166 r   (reader) freesatfromsky [videoguard2] Reader initialized (device=Serial:Reader 8AAD57E, detect=cd, mhz= AUTO, cardmhz=343)
2017/11/19 17:01:34 129EF166 r   (reader) freesatfromsky [videoguard2] card detected
2017/11/19 17:01:37 129EF166 r   (reader) freesatfromsky [smartreader] set flow control failed
2017/11/19 17:01:37 129EF166 r   (reader) freesatfromsky [smartreader] Setting new line property failed
2017/11/19 17:01:38 129EF166 r   (reader) freesatfromsky [smartreader] ATR: 3F FD 13 25 02 50 00 0F 33 B0 0F 69 FF 4A 50 D0 00 00 53 59 02
2017/11/19 17:01:38 129EF166 r   (reader) freesatfromsky [smartreader] Init card protocol T0, FI=1, F=372, D=4, N=2
2017/11/19 17:01:38 129EF166 r   (reader) freesatfromsky [smartreader] Calculated work ETU is 17.42 us reader mhz = 534
2017/11/19 17:01:38 129EF166 r   (reader) freesatfromsky [smartreader] Effective reader settings mhz =534 F= 372 D= 4 N=2 T=0 inv=1 parity=ODD
2017/11/19 17:01:38 129EF166 r   (reader) freesatfromsky [smartreader] ATR Fsmax is 5 MHz, clocking card to ATR Fsmax for smartreader cardspeed of 5.34 MHz (specified in reader->mhz)
2017/11/19 17:01:41 129EF166 r   (reader) freesatfromsky [smartreader] card system not supported
2017/11/19 17:01:41 129EF166 r   (reader) freesatfromsky [smartreader] Normal mode failed, reverting to Deprecated Mode
2017/11/19 17:01:45 129EF166 r   (reader) freesatfromsky [smartreader] ATR: 3F FD 13 25 02 50 00 0F 33 B0 0F 69 FF 4A 50 D0 00 00 53 59 02
2017/11/19 17:01:45 129EF166 r   (reader) freesatfromsky [smartreader] Init card protocol T0, FI=1, F=372, D=4, N=2
2017/11/19 17:01:45 129EF166 r   (reader) freesatfromsky [smartreader] Calculated work ETU is 69.66 us reader mhz = 534
2017/11/19 17:01:45 129EF166 r   (reader) freesatfromsky [smartreader] Effective reader settings mhz =534 F= 372 D= 1 N=2 T=0 inv=1 parity=ODD
2017/11/19 17:01:45 129EF166 r   (reader) freesatfromsky [smartreader] ATR Fsmax is 5 MHz, clocking card to ATR Fsmax for smartreader cardspeed of 5.34 MHz (specified in reader->mhz)
2017/11/19 17:01:48 129EF166 r   (reader) freesatfromsky [smartreader] card system not supported
2017/11/19 17:01:48 129EF166 r   (reader) freesatfromsky [smartreader] THIS WAS A FAILED START ATTEMPT No 1 out of max alloted of 1
2017/11/19 17:01:48 129EF166 r   (reader) freesatfromsky [smartreader] card initializing error