Tvheadend

Hi,

when I'm scanning for services, I always get an error "scan no data, failed".

This is the log:

2018-03-11 21:36:10.484 mpegts: 402MHz in DVB-C Network - tuning on Silicon Labs Si2168 #0 : DVB-C #0
2018-03-11 21:36:10.484 subscription: 0024: "scan" subscribing to mux "402MHz", weight: 6, adapter: "Silicon Labs Si2168 #0 : DVB-C #0", network: "DVB-C Network", service: "Raw PID Subscription" 
2018-03-11 21:36:15.484 mpegts: 402MHz in DVB-C Network - scan no data, failed
2018-03-11 21:36:15.484 subscription: 0024: "scan" unsubscribing

I have a similar tvheadend setup on a different device with the same muxes which is working without any problems. So the muxes shouldn't be the problem.

Is it a problem with the tuner or the driver or did I do anything else wrong?

Thanks

EDIT: solved it, it was a missing firmware.