@Melbart having the same problem with 5 hs100 smart plugs, the reply from support was unhelpful, they obviously have a problem they are not prepared to admit too with this version of the firmware.

Setup 5 of these plugs on my network, all worked fine till yesterday evening when Kasa app told me they were "device unreachable" and the light on all plugs turned red. As in the UK I'm using a BT...