Hi, Aurelien, Thank you for looking into this. I really appreciate it. > Which nameserver do you use? Google DNS ( 8.8.8.8 and 8.8.4.4 ) > As the answer is probably large, it might > be interesting to check if it supports TCP connections as a fallback. > Alternative you might want to enable edns0 if it's not already done. I will definitely look into that. > Could you try with other nameservers, there are many public DNS servers > available to test. I’m sorry that I didn’t think of that. Everything works fine with OpenDNS ( 208.67.222.222 and 208.67.220.220 ). > Finally would it be possible to get a tcpdump trace of the issue? That > would likely help to understand the issue. Please see the attached pcap file.
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bad-gdns-lookups.pcap
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Please let me know if there is any other data I can provide. Kindest regards, Mike Przybylski