Snow Leopard WiFi
2009-09-06 13:23:19
That thing about deleting the VPN profile turned out to be a red herring, the problem returned after a few hours. Finally solved it today, by setting the DNS server to my ISP, rather than my router/modem. Doing the same on my iPhone also solved its WiFi issues, which have been annoying me since the 2.1 OS update. I guess whatever DNS stack change was made on iPhone was backported to Snow Leopard, and it happens to interact poorly with my modem (Billion BiPAC 7300RA, for the record). I still don't quite understand where in the OS X software stack the problem is; since DNS lookups against the router work fine using nslookup; I'm guessing it's something in the Cocoa layer.Your comment:
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Austin writes:
Afaik, the issue is the mDNSResponder cache b0rking when it receives a certain TTL value for a DNS query