@Kevin_Z Thanks for your reply but I figured it our - my Wifi (Meraki) was seeing the plug as a rogue AP and interfering with the traffic going to it. Once I whitelisted the MAC address in my wifi it...

HI There I have just bought x2 HS100's in a pack - have run through the setup and configuration of the 1st switch without any issues, Install Kasa App - Add device - go to wifi settings on phone and...