TP numbers are different between receivers. Since you did a factory default, chances are that your receiver does not have the
VTV4 transponder as it's newly added to the satellite (2005).
You want to make sure you have frequency 11966 stored into your receiver. If not, then you'll have to add it. (network configuration .. Add TP) then scan it.
There is no way to change the default transponder on coship. This does not mean you do not have the better signal you see on other transponder. The transponder is there but the receiver goes back to the default transponder for showing overall signal. of course you can delete TP1 to have TP2 as a default (still TP1).