What should I do if DNS/URL Threat filter service is unavailable on H series
Zyxel_Kevin
Posts: 875 Zyxel Employee
Symptom:
Sometimes for some reason the Firewall cannot query the type of website. It may cause delays in opening web pages
Solution:
With uOS 1.30, you can enable Category Query Fail-open. It bypass category check for DNS/URL Threat Filter, Content Filter when category service is unreachable.
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