Can't delete grayed-out DNS server addresses

I want to replace two grayed-out DNS server addresses from the Network panel (under the DNS tab in "Advanced…"), to replace them with OpenDNS settings. But they can't be selected/deleted. How do I get around this problem?

That is correct - those are provided by your router and can not be deleted - you can add Open DNS servers (click the + sign) or log into the router admin page (I recommend this way) and have your router use the Open DNS servers fro everything on your network (this will change the grayed out ones)
LN

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Hi, i am trying to setup back to my mac at home but I get the error "Back to my Mac isn't working properly because your DNS server isn't responding. Contact your ISP for an alternate DNS server address, and enter it in Network Preferences".
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Edit #1
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Edit #2
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http://support.apple.com/kb/TS1208

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Disclaimer: Apple does not necessarily endorse any suggestions, solutions, or third-party software products that may be mentioned in the topic below. Apple encourages you to first seek a solution at Apple Support. The following links are provided as is, with no guarantee of the effectiveness or reliability of the information. Apple does not guarantee that these links will be maintained or functional at any given time. Use the information below at your own discretion.
With the recent revelation of DNS server security issues, many have expressed a desire to use DNS servers they know to be secure rather than the servers specified by their routers via DHCP, which often are those of a particular ISP.
When you manually enter a DNS server address in Mac OS X Leopard's Network preference pane, the manually entered address(es) appear below any DHCP-provided addresses (which are shown in grey as they are unchangeable), leading one to assume that DHCP-provided addresses always have priority over any a user may specify.
However, a check of the /etc/resolv.conf file generated by Mac OS X shows that in fact user-provided DNS addresses will supercede any provided by DHCP.
As an example, if your router promotes itself as a DHCP server, its IP address, say "192.168.0.253," will appear, greyed out, in the Network->Advanced->DNS preferences pane.
If you then add, say, OpenDNS' addresses of "208.67.222.222" and "208.67.220.220," the preferences window will show:
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208.67.222.222
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Do you want to provide feedback on this User Contributed Tip or contribute your own? If you have achieved Level 2 status, visit the User Tips Library Contributions forum for more information.

That's very good to KNOW.
I figured it as such as I have some manual entries for the office and I don't use profiles, so it stays there when I go home.
I notice a slow-down when office DNS entries are used at home -as one would suspect.
I do like KNOWING that it's the case though - thanks for the info!
Scott

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Can't delete grayed-out DNS server addresses

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