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Yosemite WiFi works, but no internet. nslookup works, ping fails.

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May 7, 2014
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Motherboard
GA-X79-UP4
CPU
i7-4930K
Graphics
GTX 1060
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Classic Mac
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[SOLVED] Yosemite WiFi works, but no internet. nslookup works, ping fails.

Solution:
Code:
cd [COLOR=#000000][FONT=-apple-system-font]/System/Library/LaunchDaemons
[/FONT][/COLOR][COLOR=#000000][FONT=-apple-system-font]sudo mv com.apple.mDNSResponder.plist com.apple.mDNSResponder.plist.old[/FONT][/COLOR]
[COLOR=#000000][FONT=-apple-system-font]sudo mv com.apple.mDNSResponderHelper.plist com.apple.mDNSResponderHelper.plist.old[/FONT][/COLOR]

- Reboot
- Done.

More info:

As my problems seemed to be related to DNS found out that mDNSResponder was now obsolete and discoveryd had replaced it. Simply writing
Code:
[COLOR=#000000][FONT=-apple-system-font]sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.discoveryd.plist
[/FONT][/COLOR][COLOR=#000000][FONT=-apple-system-font]sudo launchctl load -w /System/Library/LaunchDaemons/com.apple.discoveryd.plist[/FONT][/COLOR]
fixed the internet, but only until the next boot.

To my surprise I found /System/Library/LaunchDaemons/com.apple.mDNSResponder.plist
and com.apple.mDNSResponderHelper.plist still there.

Renaming them (or deleting them, I would assume) fixes the problem permanently.


-----


Hi,

I've had mavericks working 100% (except iMessage stopped working after a while)

But after I upgraded to Yosemite (refering to tony's guide) everything works except one thing - the internet.
Don't get me wrong, the wifi works and connects to my networks (which do work on other devices).
I can even nslookup with success, but ping returns "ping: cannot resolve google.com: Unknown host".
I am able to access the router as well. It's simply "everything" else that's not working.

I have googled for days after DNS related issues and tried resetting DNS cache and more.


Any ideas?




Thank you




Regards
- Fred
 
Last edited:
I am also having this issue. Connects to my WiFi network, sees other computers on the network, can Airdrop, but can't connect to anything out side of my local net. Everything works fine on multiple other devices.
 
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