Slow internet connection after update to OS X Yosemite

Tried that and it didn't help. I used a wireless Ethernet jack instead of using WIFI and it works fine however. So it's definitely something to do with the WIFI only and not networking as a whole. It works with my phone as a hotspot as well.

Same here on both 2009 iMac and 2013 MacBook Pro retina... dog slow speeds. Apple airport extreme w/ Moto surfboard DOCSIS 3.0. (30MB/2MB turbo speed) Rebooted modern, called Brighthouse. Fixed for a couple hours, now back to super slow. Ugh....

Check if you system is automatically looking for and doing software updates --

It may also be doing many refreshes - so you have to check all your preferences.

If Apple is not putting a version of Yosemite that has the updates incorporated - thats really low.

Lived with it with Snow Leopard that I had 2 updates to install after installing software from media - and I was an early adopter.

I found some suggestions on another website... I had turned on bluetooth for "hand-off" last night to test.... and sure enough, that is when the slow internet & wifi began. Turned off bluetooth, ran 2 more speed tests at speedtest.bhn.net and it is back to over 30MB download speed. Will keep testing but, so far, Bluetooth seems to be the culprit!

Test #3 and still getting normal (fast) speeds.

I guess "Hand-off" is not ready from prime time, unsurprisingly... Turn it off and test your speeds, folks.

After deleting web history I was back up to 10mpbs download from 3mpbs. Turned off bluetooth/hand off and now it is at 20mbps. Its better but still have webpages hanging up.

I turn off bluetooth and the speed problem go away, then i turn on again and no more problem, thx!!!

I'm having a similar issue but unfortunately, turning off bluetooth and/or the hand-off feature isn't helping. Really frustrating. Bandwidth speed test was giving me ~1Mbps when I usually get around 20 (and am still getting that high on other computers in the house).

Same issue here.

Internet speed check in my iPad: 8 Mbps. Speed in my Macbook Air with Yosemite: 0.7 Mbps.

It's very frustrating!

same issue

Alright guys. I fixed the slow internet issue on Yosemite for me. I don't know if this is going to be helpful to any of you, since the cause, in my case, was rather... Peculiar.

My slow internet issues on Yosemite started happening "randomly" earlier today - To be more specific, at around the time I opened AirDrop to test it with my phone.

Turns out the problem was not so random after all.

After Googling for a while, I saw a lot of people recommending to turn off Bluetooth, since that seems to be causing with Wi-Fi. I use an iMac, so turning off Bluetooth is definitely not an option, since my mouse, tracked, and keyboard all connect to my Mac via Bluetooth.

Then I was doing some serious work on my Mac to see if it was some app sucking bandwidth like crazy. I found the Finder window that had AirDrop opened. It quickly flashed to my mind that AirDrop uses Bluetooth, so I thought that maybe closing that Windows was going to solve with my issue.

And it turns out it has. I killed the Finder window with AirDrop and my slow internet problems are now gone. Before you do any crazy fix, please make sure you don't have an AirDrop window opened anywhere.

Since I am a developer, I will be filling a bug with Apple and hopefully they will be able to use this info, since it is related to Bluetooth, to fix all Yosemite Wi-Fi problems for once and for all.

They needed to meet a date, so the software went out on that date, ready or not. And it was not ready.

I am having the same issue.

I upgraded yesterday to Yosemite on my MacBook Pro (Retina) and internet connection was VERY slow. I disabled Bluetooth and internet now works fine.

Trying to enable Bluetooth slows internet again. I guess I have to live without Bluetooth enabled devices (Apple Magic Mouse primarily) until a fix is issued or someone finds a better hack... :S

Try turning your bluetooth off. This was my issue and turning off bluetooth fixed it instantly. Your bluetooth has the same frequency as your wifi (2.4ghz) and is interfering. You can probably solve this and use both by getting a dual band router but until then bluetooth will need to be kept off.