I have installed a Shelly 2.5 in Roller/Shutter-Mode to open and close my electrical "roof-window".
Shelly is connected to Shelly-Cloud. Shelly-Skill is installed into Alexa and "roof-window" is imported as device into into Alexa.
Alexa-Device-Info tells me that "roof-window" is an activated device connected via "Allterco Robotics" with a description of "Shelly 25 relay" and is of type "shutter"
I have connected two push-buttons to shelly to be able to open and close the roof-window by pushing a button next to my light-switch. This works perfect without problems.
I am able to open and close the roof-window with the shelly-app on my mobile phone (it does no mather if wifi is turned on or off, so opening and closing is also possible when using a mobile connection like LTE or 3G)
BUT: When I ask Alexa to open or close the roof-window, Alexa opens or closes the roof window in about 30 % of the cases. In the other 70% of cases Alexa tells me, that "roof window does not respond".
Even if Alexa tells me that "roof-window does not respond" - I am able to open or close the roof-window using the Shelly-App on my mobile-phone.
Any ideas?