I think I have a workable multi connection model worked out . it doesn't like a few browsers esp some Linux/android ones at this stage its been done in C
if anyone is interested PM me and you can get the ip address and have a go (its probably prudent not make it public) and you're welcome to the code too.
after playing with these things for days I think a multi connection version for pbp is not worth the effort and not necessary for me anyway . I really just want to monitor remote things and maybe tweak a few of their settings on the fly . one connection is amply for most if not all my requirements ,and it will be great just being able to set the time on the solar tracker for daylight savings time changes without having to get on the roof and plug the laptop into the tracker