Hi there,
We have recently sporadic DNS issues that are of short duration max. 2min.
Affected are only "external" domains, internal domains can be resolved without problem.
If this problem exists, pinging to the IP address of the affected domain is successful.
In the XG there are two entries for DNS server, first the internal DNS server in the DMZ and second Google 8.8.8.8.
The log file of the XG you see nothing that indicates this problem.
We have the feeling, that this has probably arisen since the upgrade from MR8 to MR9.
Does anyone have any idea what that might be and how to analyze the problem, as it will only appear for a short time?
regards
Stefan
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