I have had a somewhat similar experience. I get signal from the Forrest Town and Rosebank towers.
Forrest Town: -78db and 0 - 1 load (good signal and good tower)
Rosebank: -80db and 2 - 3 load (good signal and bad tower)
For some reason, Forrest Town's signal will sometimes weaken to -85 which makes me connect to Rosebank. All well and good except that Rosebank is overloaded to the point of standstill during the day.
I only managed to figure out that Rosebank was a problem once I got UTTRace* working. My solution was to focus signal on Forrest Town only.
Now I suspect that, that is what is happening to you. I think that without UTTrace* working it would be impossible to get an idea of where your best signal is. Have you got a friend with IBurst or a reseller that can bring their UTTrace* compatible modem in and help you to setup UTTrace* and find your sweet spot?
I think you said that you get 90% - 100% connection according to the IBurst software. I stand corrected but I think that if you don't get 100% signal from IBurst then you have terrible signal.
Good luck.
Forrest Town: -78db and 0 - 1 load (good signal and good tower)
Rosebank: -80db and 2 - 3 load (good signal and bad tower)
For some reason, Forrest Town's signal will sometimes weaken to -85 which makes me connect to Rosebank. All well and good except that Rosebank is overloaded to the point of standstill during the day.
I only managed to figure out that Rosebank was a problem once I got UTTRace* working. My solution was to focus signal on Forrest Town only.
Now I suspect that, that is what is happening to you. I think that without UTTrace* working it would be impossible to get an idea of where your best signal is. Have you got a friend with IBurst or a reseller that can bring their UTTrace* compatible modem in and help you to setup UTTrace* and find your sweet spot?
I think you said that you get 90% - 100% connection according to the IBurst software. I stand corrected but I think that if you don't get 100% signal from IBurst then you have terrible signal.
Good luck.