Those are the correct settings to use for performing a scan as I requested earlier. You have said that you are receiving about 100 less channels than you should.
I far as I am aware it pulls in all the channels associated with the provider, So for example you scan sky one hd but your scan fails to see sky one sd it will still load it into your channel list. I am up for being correct on this.What does the network scan do? I select it too, but never really understood what it means.
Network scan reads the Network Information Table and scans all transponders listed in it. Each transponder is scanned individually and only services found on each transponder will be saved. Channels are only saved if the transponder can be received.
There are 2 ways to use network scan:
"Complete scan + network". This is the same as doing a "complete scan" except it can find unknown transponders not listed in satellites.xml.
"Single transponder + network". This is used to scan all transponders of one provider. For example, on 19E there are a lot of different providers and you might only want to scan one. Lets say you only want to scan transponders that carry the CanalSat package. Go on 19E, DVB-S, 11856 V 27500, 3/4 and select network. That scan will scan all the transponders that CanalSat transmits on. Maybe 7 or 8.
No reason why a Network scan should take a long time. And it won't scan in any channels on transponders it can't access.