My guess is that these units are trying to work at the limits of there wireless range. If possible get the two units closer together for a while and see if it helps.
We have a non-talking similar unit and it has the same kinds of issues. We got sick of it and gave up. I think the low power vs range isues just ain't solved properly yet. Remember fowle's first rule of capitalism, It doesn't matter if it works, it only matters if they can sell it. tom
