Safari DNS problem in Yosemite? Works, then slow death...

Same problem here. Retina 13" first gen, 10.10.1... and Safari times out on famous sites (eg.: citymapper). Chrome does the same. I wonder if it is an OS problem, since it happens with more than one browser. I had issues on 10.10, but they got even worse on 10.10.1. Apple, please, increase your quality controls on software, it's been a few years you're coming out with buggy stuff. Are you aiming to become the new Microsoft?

😟

I deeply hope 10.10.2 will solve it.

not all posts here are of same problem. In some cases (mine included) chrome continues to work well while safari seems as if it can't reach the interweb. This happens to me when my comp comes out of sleep. Recycling wifi off and wifi on again resolves the problem until next time.

Nobody tried this??? :

Flush the DNS cache:

in Yosemite (not the older OSX):

Open Terminal (in Utilities folder),

copy paste following command into Terminal

sudo discoveryutil mdnsflushcache;sudo discoveryutil udnsflushcaches;say flushed

and hit enter,

Quit Terminal

this should help immediately.

in older OSX:

dscacheutil -flushcache

Lex

No change, at least to me... 😟

Exactly same issue an latest update didn't fix anything.

When I started linking Safari over chrome all these issues..Ugghhh!

Apple are you reading this???

Since I haven't upgraded to iOS 8 I'm not affected but I am monitoring this thread so I will know when it is safe to upgrade...

My question: Are Apple Airport Extreme Base Stations (not the latest version...) susceptible or is the problem primarily with third-party routers? I don't recall seeing any mention of the AEBS but I could have missed it... I wouldn't upgrade to Yosemite/iOS8 even if Apple routers are immune but I am curious. If AEBS are usually not affected it could be a clue as to the cause of the WiFi problems.

This isn't an iOS 8 problem. This isn't a router problem. It's not a problem with Safari crashing immediately upon startup. It's a Safari 8 DNS problem in Yosemite (as the original discussion title suggests).

How is this most easily observed? I'd say when trying to browse to a website w/ Safari and getting a "Site Not Found" error, yet you are able to visit the site in Chrome/Firefox just fine.

Too many people on here are posting unrelated problems and it's detracting from the OP's discussion. Granted, this is pretty much the life story of Apple's discussion forums, but for the sake of everyone on here who is suffering from the ORIGINAL problem, please read a bit before posting every problem under the sun that you think is related.

I have this problem with an airport extreme. I'd say it's about 5 years old (the extreme).

Having this same problem. Yosemite 10.10.1. Retina iMac.

I've tried: clearing caches, clearing dns cache, disabling/deleting ipv6 addresses. Nothing helps

For me it's happening with one specific site right now, and sometimes only on https. If I open the page in Chrome it works without a problem.

After trying everything and nothing worked, I went into System Preferences > Network > [ServiceName] > Advanced > DNS and changed my DNS servers from the Google DNS servers:

8.8.8.8

8.8.8.4

to the Open DNS servers:

208.67.222.220

208.67.222.222

This immediately fixed the problem that I was having for a week, which was that craigslist.org was inaccessible on my Mac (same problem on all browsers: Safari, Chrome, Firefox).

I don't know if this will fix all of my problems, but it clearly fixed this one. I had been using Google DNS servers for years with little problem, but something went awry. Seems to be related to Yosemite, but can't swear to it.

This is depending on where you are: in Europe in general the OpenDNS you recommend are better, in USA in general GoogleDNS does better.

You have only one to put in, so why not take one of each !

There is a tool called Namebench that can suggest the best for your region by measuring all servers including the regional ones. Then it comes up with a suggestion of 3 DNS. Although if you run Namebench 2 times on one day, it often finds a different set (it takes in count the real throughput).

Worked for me! Thank you.

Hi Carolyn,

i did all you advised here and it didn't work for me. then i went to preferences -> network -> advanced -> proxies. there was a box "auto proxy discovery" ticked so i clean it, "the use passive ftp mode box" i left ticked, i didn't touch any other settings in network preferences and Safari is now working perfectly. i had problem with open anything on safari since installing Yosemite, only chrome and firefox worked. I don't know if i did the right think with proxy but my Safari is back 🙂 thanks a lot. Rgds/W

using MCP Retina Mid 2012 model

Yosemite

Safari / Chrome / Firefox - All slow lookup's on DNS (30 seconds avg) - Appears to popular sites - Facebook / Youtube / Other Google Products!

Amazon is fine!

Tried different DNS / Old mac use to use Mavericks, no problems, upgraded to Yosemite now it has the same problem.

sudo discoveryutil mdnsflushcache;sudo discoveryutil udnsflushcaches;say flushed

Is working for the moment, its a DNS stack issue for sure.

I had the same problem: everything working fine, then poof! Some apps that require Internet failed (prezi) and Safari wouldn't work at all. Shutting-down and starting my MacBook Air solved the problem. This is the second time in the post-Yosemite world that I had a similar problem to one described in the forums with complicated solutions proposed, and a restart did the trick.

My apologies if that was tried and failed by some of you. I didn't read every post.

Hope this helps.