I am having the same issue, I have tried the recommended processes from Battle.net launcher crashing on startup - #2 by Zayssie
When I launch battle.net I have received a variety of errors such as (11B31E49-F8DC-40A2-AC1D-68B3CCE824DB). After my 2nd unsuccessful reinstall I have restarted my computer to ensure no background processes were keeping Battlenet app running in the background. No processes are running and the recommended process is not working. I have tried with a VPN to see if it might be a routing error but this also did not work.
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