Important note about SSL VPN compatibility for 20.0 MR1 with EoL SFOS versions and UTM9 OS. Learn more in the release notes.

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LLMNR disabled - DNS resolution no longer works over VPN

Hello all,

We have deactivated LLMNR via GPO. After that we had the problem that users who work via VPN have more DNS problems. No problems could be found in the internal network.

In 90% of the cases, internal resources can no longer be resolved. Sporadically it works again. Sometimes it also helped to deactivate IPv6 in the network adapter, but this did not always work.

We use the IPSec VPN with Sophos Connect (Sophos XG). The internal DNS servers are properly distributed to the clients via DHCP. After we enabled LLMNR, the DNS resolution worked properly again.

Thanks in advance!

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