I too have this happening have done all the steps they messed up something I’m afraid ,
I think what truly “fixed” it for me, was going into my virus protection / firewall (Windows defender) and putting in exceptions to allow both WoW.exe, as well as the launcher/patcher, then relaunching the patcher and telling it to scan+repair.
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I just got it working by shutting defender off and then scanning repairing. Thankyou
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