Polar mount or Az-El?
manually the dish for changing from one satellite to another.
Sounds like G3 may be weak in your area and your experiencing solar interference. The other satellites may be stronger and not be interfered with to a degree that causes them to 'disappear like G3.
and about 10 AM it dissapeared. - - -
3 Hours later, signal - - were back.
Think I'd -
Tune it up with your center (main) lnbf on G3 and watch it over the course of a few days. If it disappears and re-appears daily on 'schedule' think we can confirm to a reasonable degree that 'that's it'.
If so, think the only recourse is a larger dish. Higher gain and tighter beam width to minimize the effects.
It's also near solar outage season. When the sun appears to be directly behind the satellite you're aimed at.
One night I walked home very late and fell asleep in somebody's satellite dish.My dreams were showing up on TV's all over the world. -- Steven Wright
Openbox S9, Pansat 3500SD, 139w to 55.5W +30W
10Ft USS Steel BUD and an assortment of ChannelMaster dishes, (1)84e, (2).7m, (2)1.2m,(1)1.0M, (1)2.4m[8ft] offset in storage.