I replaced my batteries last fall in everything, consoles, ISS, Fars, anemometer transmitter.
When I got home from work, I set my upstairs console to retransmit my channel 2,8 singles from ISS and anemometer to channel 1. Then I changed my "suspect" data logger console to channel 1. Only lost 4 packets since midnight. So I'm suspecting either the downstairs console is flaking out, or it still has poor reception downstairs.
My upstairs console is an older unit I bought used from this forum. I have a Davis firmware updater on it's way to update the upstairs console to the DST version. Once that is done, I will swap the 2 consoles out and see if the reception issues follow, or go away. That'll be the last test really.
If the downstairs console doesn't get reception, I may have to consider changing out to a VP2. That would suck. Mostly because I have the anemometer unit too, plus I want 2 consoles still. And as long as I'm in for that kind of change, might as well get the ISS with 24 hour FARS, UV and solar rad. Right!?!