We have a intermittently issue with GlobalProtect client and the local DNS resolution. We have conigured local dns servers on network services and we have established "Resolve All FQDNs Using DNS Servers Assigned by the Tunnel (Windows Only)": YE
This configuration is working fine, but intermittently, the local DNS servers are not available y the users can not acces to local resource by FQDN but it is possible by ip.
Could anybody help us with this issue?
Do the logs on the PAN show any reason as to why this traffic is blocked? I often see traffic to external DNS services such as 188.8.131.52, while I block it, it doenst disrupt the end user experiences. Check the unified logs to see if something is getting blocked or using the incorrect DNS server.
Just a thought.
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