@mrhoangit Appreciate you posting about this. I’d recommend contacting the GlassWire Support team at help@glasswire.com so they can take a closer look and help troubleshoot the issue with you directly.
I have similar problem (and similar “solution“) with my local DNS Server (Technitium), Glasswire (3.8.1061) is blocking 127.0.0.1:53/UDP. I can use local DNS server with Glasswire 3.7.880