Yep.....i have had this issue with the remote even getting it on in the first place.... sometimes have to restart the Kemper 6 or 7 times, unplug and re-plug the remote back in to get it on.
I have tried so many bloody ethernet cables and still the same crap.
Every gig is a crapshoot and a headache with this remote issue. One would think that Kemper, being such an amazing company could have sorted this issue out ages ago..... I guess the small things are not that important to them, but at least it sounds good.