[tthaler]

The problem is solved.
I had to remove the NDS servers of my ISP in the DHCP setting and enter them as forwarders.
Now it works again.

[tthaler]

Did you get a new router with the change to cable from xdsl?
I ask you that because I have the same problem and figured out that this problem is not a provider problem but a router problem. What exactly needs to be done , I don’t know, but I know for sure that it is a problem of the router.

Kind regards from Switzerland
Thomas

[tthaler]

[QUOTE][u]Quote by: MacTroll[/u][p]Your DNS server is attempting to use DNS-SEC, for validated DNS lookups. This requires a larger UDP packet size, >512 bytes, than your firewall seems to like. It then has to wait to both decide it needs to reduce packet size /and/ to get a negative result on the lookup.

I would imagine that the DNS resolver on OS X client doesn’t bother to do a DNS-SEC lookup, and hence no issue.[/p][/QUOTE]

Thank you for your feedback.
How can I change this behavior on Mac OS X Snow Leopard Server DNS?

[Author]

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