OSX Lion (10.7.5). Network preferences has an option to set up (and order) DNS adresses. My router (Bell Connection Hub – Bell Canda) also has an option for specifying DNS addresses. Which takes precedence in ordinary, vanilla browser requests? In other requests? Are there special situations/considerations? Thanks!
MacOS – Specifying DNS: Router or PrefPane
dnsmacosrouter
Related Solutions
The TC router really isn't as great as it could be, I would go back to using the belkin as your wireless network and have the TC running from it.
I have a 500gb TC used on a SKY router, I have used it as a router, but also found it was slow.
Have you tried flushing the DNS cache? In Terminal.app, enter dscacheutil -flushcache.
It could be your DHCP router handing out IPv6 information incorrectly, which is especially annoying if you don’t need IPv6 — like at home. This seems like the most logical explanation, given that all browsers and applications are suffering from the speed issues.
Go to System Preferences → Network → WiFi → Advanced → TCP/IP and set “Configure IPv6” to “Link-local only”.
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Best Answer
If you specify DNS entries in your router's configuration, then any DHCP client of that router will receive those DNS addresses and perform lookups against them.
If you only specify DNS entries on your own Mac, then your lookup requests will be handled in the order listed.
You might want to consider running the excellent and free namebench to find the best DNS entries for your location and Internet connection.