eufyCam 2C not working with Alexa Skill

I have a severe problem with my two eufyCams 2C… I have Alexa Show 8 with eufySecurity-Skill on it and there is no cam stream on the display of the Alexa show. Alexa answers in German which means translated “I don’t know what went wrong”. I wrote an email to the Anker support but they told me that my connection is too weak, which cannot be the reason (440 mbit). As a further information: Logging into eufy Security plattform where I can choose my cameras to show a live stream I have the same problem - no stream with having a timeout message after a while. What can I do? The Alexa feature was one of the reasons I bought the system (eufyCam 2C with HomeBase 2). Has anyone of you similar problems and maybe a solution for this issue? Regards and thank you, Michael (from Germany, sorry for my bad English)…

https://communitysecurity.eufylife.com/

Above is an Eufy security specific forum.