If you have a subscription card and a USB reader (e.g., Smargo), you must identify the device path (usually /dev/ttyUSB0 ).

[reader] label = cccam_peer protocol = cccam device = cccam.server.com,12000 user = my_cccam_user password = my_cccam_pass group = 4 inactivitytimeout = 30 cccversion = 2.1.2 ccckeepalive = 1

[reader] label = card_primary protocol = internal device = /dev/sci0 group = 10 fallback = 0

Remember: OSCam is highly sensitive to hardware quality. A poor-quality USB reader or oxidized smartcard contact will cause erratic behavior regardless of perfect configuration. Start simple, add complexity gradually, and always keep a backup of your working oscam.server .