Depends on what are you are in. Are you sure you are not VOD/Teleport????? Some areas will only get front row 1-9 and there is nothing we can do about that. TBH the bruteforce files wont help much anyway as they only contain the same frequencies that the normal scan does.
Check your other box gets all front row channels
if it does transfer the bouquet and service file from it and put them in the other box they go in var\tuxbox\config\zapit
refresh channel list or reboot the box
then your channel menus should be the same on both boxes
your readings are ok so you should get them.
wen i don a scan thru the cable sym6592 or 6887, i got no front rows at all, at the moment i was tinkin VOD time has come. but then i tried the bruteforce, PIKD UP EVRY SINGLE CHANELS INC. FRONT ROW.. ALL OF THEM. 1-50 plus front row guide. lol