Hello, My software probe has been connected for about ten days now. It is in an IPv6-only network and was assigned IPv6 capable, works and stable system tags. But it was not assigned any DNS resolution tags yet, neither positive nor negative. I'm not aware of any DNS issues and its measurements seem okay. I searched for similar probes and it seems that all IPv6-only software probes are affected. Software probes with working IPv4 do have DNS tags, so do IPv6-only hardware probes. Cheers, Maurice