[Support] Shelly Duo does not turn ON/OFF
**Describe your problem**
I have a Shelly Duo bulb, connected to the network and controllable via Shelly App.
It is visible in the plugin administration page and the Apple Home app but I cannot turn it ON of OFF via Home App.

I get the following error in Homebridge:
[12/30/2020, 2:35:54 PM] [Shelly] Failed to load device settings
[12/30/2020, 2:35:54 PM] [Shelly] Request timeout (device SHBDUO-1 D1611A, at 192.168.0.27)

Setting the Request Timeout to 0 the error changes to:
[12/30/2020, 2:49:05 PM] [Shelly] Failed to load device settings
[12/30/2020, 2:49:05 PM] [Shelly] Error: connect ETIMEDOUT 192.168.0.27:80 (device SHBDUO-1 D1611A, at 192.168.0.27)

**Describe what you have tried so far**
I have a Linksys Velop Mesh Wi-Fi System and tried to disable the firewall and searched the settings for something that might be blocking the connection but could not identify anything. 

**Environment:**
 - Shelly device(s): Shelly Duo
 - Plugin version: 0.16.0
 - Device running homebridge: Intel NUC running Windows 10
