I have experienced the same issue: Pause Pandora (Chrome Browser) / Computer Sleep Mode / Return 12+ hours later / Pandora Ad Blocker pop-up appears. I clicked on the "Show Me How" to change my ad blocking settings and it went to a generic Pandora home page. I had to type "ad blocker" into the search function. I don't see a solution from Pandora in this thread form October 2020? Really enjoy Pandora. Thanks.
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