Windows 10: Why did Win Update cause Alexa app for PC to malfunction?

I was using the Amazon Alexa app on my PC for over a year without any issues.I was first using it on windows 10 and then I 'upgraded' joke!! to windows 11 and it still worked fine for months.Then, suddenly, in early December, a windows 11 update occurred and now I cannot Drop-In, Call or Video Call anymore!- in Alexa app!I can do those things in WhatsApp and Zoom on my PC, so I know its not my camera.Yet the cameras in Alexa PC app work fine, I can see what my 2 Amazon Echo Show devices' live cameras show me, but I cannot drop in which uses video or use the video-call or call features. Onl

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Amazon Alexa App on my pc

The Amazon Alexa app on my windows 10 computer shows "offline". There isn't a network/wifi settings option listed under settings in the app. How do I get Alexa on my pc connected to wifi?

 

Alexa App

The font in the Alexa app for PC is too light I can barely see the text in the app. I have changed the font in Windows yet I cannot change the font in the Alexa app for PC. Does anyone have a suggestion for correcting the problem?

Thank you

 

Alexa App on Win10.

Win10 1909. Strange problem with Alexa app from MSoft Store.

Alexa on Win10 is the only Alexa device that will not play BBC Radio.

Me: (To DESKTOPPC Alexa) "Alexa, play BBC Radio 2"
Alexa: "Here's Radio 2"
App: (On DESKTOPPC) "BBC Sounds"
Silence.

Me: (To Echo Alexa in the Hallway) "Alexa, play BBC Radio 2 on DESKTOPPC"
Alexa: "Here's XXX" (A completely different TuneIn station)
App: (On DESKTOPPC) Plays the TuneIn station that I did not ask for!

I have the BBC Skill on the app. So I say...
Me: (To DESKTOPPC)... Open BBC.
Alexa: Choose a station or program.
Me: Play Radio 2.
Alexa: Here's Radio 2.
Silence. The above works fine on other devices.

I'm thinking this may be a Win10 settings problem, although I have no idea which. When I go into Sound Settings on Win 10 and choose "App volume device preferences" the volume slider against Alexa is greyed out. All other media/music apps are shown in blue and the slider can be adjusted. Kind of strange in that Alexa works (voice-wise) in all respects other than BBC radio. So for example if I say to DESKTOPPC.. Alexa Play Music ...it plays music. Despite that the App volume slider in Win10 settings is still inactive. This suggests the Alexa Win10 app installer is not installing properly.