I am using version: 2.99.782.0 64-bit (November 2021).
I sign in account in PBI Desktop and can see the list of live datasets, but when picking any of them (even the very small size for testing purpose) then the PBI freeze. This issue just happens today, I still connect as usual last week.
I did tried reinstalling PBI Desktop several times but no success. I even try installing the latest version: 2.99.862.0 64-bit (November 2021), but the issue is still there.
First glad to hear that this issue has been resolved by changing network environment and thanks for your feedback.
'Microsoft team can make a notification in the PBI Desktop to tell "Fail to connect to live dataset because...'
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