[Support] shellies rgbw2 not discovered 
**Describe your problem**
I have the newest node and Homebridge installed as well as the Homebridge-Shelly plugin. 

Unfortunately, no devices are discovered. I have the latest firmware on my Shelly rgbw2 s and both are reachable from the Shelly app. Can someone help me out?

**Describe what you have tried so far**
I have switched between multicast and Unicast on one of the Shellys, I have traced the Shelly on my raspberry pi 3. I have executed „Shellies listen“ on my pi and the shellies are found no problems.

**Environment:**
 - Shelly device(s): rgbw2 newest firmware


Help is very much appreciated! Thank you!
