have you tried a different web browsers? clear cookies?

[/FONT]hi empee, have you tried this beta utility? http://static.tp-link.com/beta_PowerlineUtility.zip @phone UK50, on the tplink website, there is powerline scan utility for windows, try that and...

no big difference, only the appearance is different.

are they in the same breaker? can you try different location or sockets to test? if no changes, it's suggested to submit a ticket to TP-Link support.

yes

i don't think that we can use alexa to discover scenes as they are only supported by kasa app. here is the link about all the commands alexa can do with tp-link smart bulbs....