Hi
That message is common for connectors accessing on-prem services like sql service. very unusual for a blob.
Anyway,
The correct values should be here:
#1 is where you find the storage account name and #2, make sure you copy the key if you pick "Access key" for "Auth type"
That worked for me
I tried to enter some wrong values and the closest error was this after i enter the wrong storage name:
Maybe something went wrong. try to delete old connections, create fresh and make sure you enter the correct values.
What settings your blob storage has under "networking"