Good to see you have 'the' solution Paul, I have been/am having the same problems, seems to me my hummy gets warm and then refuses to see the remote, remote still works for the TV. Humax supplied a new remote (foc, great service) but either they both work or both don't. I have been using the web-if remote on smart phone, laptop and pad, invariably have one to hand, and find it perfect.
The loss of remote seems random, may be the hummy getting warm, could be cables or interference......................
Yesterday the web-if refused to connect. I can pull it up on the lappy screen so somethings going on, have rebooted, switched it all off/on a few times, re-install later I expect. But I can see the hummy going back with the 2 remotes, trying to avoid that at the moment.
Just now both the humax remotes are working again
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Later that same day.......... humax remotes still iffy, reinstall of custom firmware and software remote is back (took a couple of goes), for some reason I uninstalled the custom portal thinking I would be offered a chance to reinstall - but cannot find it, guess it will turn up. Quit now while I am ahead.
later again, looking for wrong thing - Portal Xtra 1 is what I want, reboot and it's back.
enough of highjacking this thread.