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User profile for user: emaz2006
emaz2006 Author
User level: Level 1
4 points

Yosemite 10.10.5 Frequent Wi Fi Drops

My brand new MacBook Pro with Yosemite 10.5.5 drops Wi Fi constantly.


As often as several times per hour, my Wi Fi signal is still there but I lose all Internet connectivity.


  • I have had the cable company replace the router (now using a brand new Ubee)
  • I exchanged my previous brand new MacBook for another new one, same problem, right out of the box
  • I tested this Mac on another ISP at a coffee shop for hours -- had some slowness due to their connection but never a drop
  • Turning Wi Fi off then back on again on the Mac reconnects me every time
  • Sometimes just waiting reconnects me as well, but it could be 2 mins or 20 mins, so I usually just restart Wi Fi on my Mac
  • Very little extra software is installed -- pretty much a stock machine for software development, using Coda.
  • Have run the Wi Fi diagnostics and watched the graphs, don't really see much of anything except "UNEXPECTED DROP DETECTED!!!" in the diagnostics log.
  • Changed my DNS to Google, in the off chance my ISP (Cox) happened to have some weird DNS issues, coincidentally right when I got this new Mac.
  • Also note: my iPhone %sdoesn't drop, nor does my iMac, and my older MacBook Pro (2010) didn't either. This only started on my brand new MacBook Pro with Yosemite.
  • I've set my router to a preset channel on 2.4GHz. There are around 23 signals in the area, evenly split between 2.4GHz and 5GHz. I'm the only one on my channel


I do find it odd that I didn't get a single drop at the coffee shop, which would make me think it's my ISP. On the other hand, they have replaced the router and my other devices don't drop, which makes me think it's this Mac.


Needless to say, this makes software development very very difficult. I have a ticket from Apple support but that goes nowhere because they really don't like to admit it could be Yosemite or hardware. And yet I see countless posts with others having a similar issue.


Could this be a production problem? Or is it Yosemite? Why is it so hard to get Apple to diagnose this at a higher level? Wireless diagnostics are producing a TON of data, why can't they analyze this?


Or could it be my ISP? How do I even debug this when everyone points fingers? Shouldn't there be a way to pinpoint this?

MACBOOK, Mac OS X (10.4.7)

Posted on Sep 24, 2015 2:10 PM

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User profile for user: emaz2006
emaz2006 Author
User level: Level 1
4 points

Posted on Sep 24, 2015 4:27 PM

I should also add that I have Bluetooth off, which fixed the issue for some. Not for me.


The fact that is a brand new computer, and upgraded to 10.5.5 is troubling. This is not the Apple I used to know.

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User profile for user: emaz2006
emaz2006 Author
User level: Level 1
4 points

Sep 25, 2015 2:22 PM in response to Eric Root

What does Wireless Diagnostics show?

Nothing useful that I can see:

09/24/15 11:25:47.9970FroggyFroggy / ch7 [RSSI=-45 dBm, Noise=-95 dBm, SNR=50, Tx=217 Mbps]
09/24/15 11:25:47.9970AWDL: Disabled [6 6 ]
09/24/15 11:25:53.0680LAN: WiFi interface can ping IPv4 router 192.168.0.1 . . . YES —— [1/1 (0% loss) min=28.5 max=28.5 avg=28.5]
09/24/15 11:25:53.1360WAN: WiFi interface can ping DNS server 17.254.0.50 . . . YES —— [1/1 (0% loss) min=47.5 max=47.5 avg=47.5]
09/24/15 11:25:53.1370FroggyFroggy / ch7 [RSSI=-50 dBm, Noise=-95 dBm, SNR=45, Tx=217 Mbps]
09/24/15 11:25:53.1370AWDL: Disabled [6 6 ]
09/24/15 11:25:58.2070LAN: WiFi interface can ping IPv4 router 192.168.0.1 . . . YES —— [1/1 (0% loss) min=4.1 max=4.1 avg=4.1]
09/24/15 11:25:58.2770WAN: WiFi interface can ping DNS server 17.254.0.50 . . . YES —— [1/1 (0% loss) min=48.7 max=48.7 avg=48.7]
09/24/15 11:25:58.2780FroggyFroggy / ch7 [RSSI=-49 dBm, Noise=-95 dBm, SNR=46, Tx=217 Mbps]
09/24/15 11:25:58.2780AWDL: Disabled [6 6 ]
09/24/15 11:26:00.0290Scan Cache Updated
09/24/15 11:26:00.2270Scan Cache Updated
09/24/15 11:26:00.4640Scan Cache Updated
09/24/15 11:26:03.3470LAN: WiFi interface can ping IPv4 router 192.168.0.1 . . . YES —— [1/1 (0% loss) min=24.6 max=24.6 avg=24.6]
09/24/15 11:26:11.4660WAN: WiFi interface can ping DNS server 17.254.0.50 . . . NO —— [0/1 (1% loss) min=0.0 max=0.0 avg=0.0]
09/24/15 11:26:11.4660FroggyFroggy / ch7 [RSSI=-47 dBm, Noise=-95 dBm, SNR=48, Tx=217 Mbps]
09/24/15 11:26:11.4660AWDL: Disabled [6 6 ]
09/24/15 11:26:11.4660UNEXPECTED DROP DETECTED!!!


I appreciate the other links and have tried every single step.


This has now happened on two Macs. It must be the router but nobody can tell me exactly what the router issue is. I've been through two routers already, a Cisco and a Ubee.

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User profile for user: kwrms
kwrms
User level: Level 1
4 points

Apr 18, 2016 12:00 PM in response to emaz2006

I have the same problem. It started the day after I upgraded to 10.10.5. Nothing else changed. My router is the same, my computer is the same, it is in the same place, I am in the same place (about 5 feet away from the router), and I did not suddenly grow a wall in between me and the router. I updated my iphone and my ipad to 10.10.5, and I don't have any issues with wifi with those two devices. It's only a problem on my MacBook Pro (Retina, 13-inch, Late 2013). I had the same problem when I upgraded to 10.10.1, and my internet provider was able to solve it by ... (sorry, I'm not familiar with the terminology) setting up a new location (?). She called it "home 10.10.1 fix." It worked perfectly from then on, until the 10.10.5 upgrade. I tried calling Cable One again to get help. and they keep telling me that they aren't allowed to help me, because it's a hardware problem. When I tell them that someone else from Cable One helped me solve this before, they said that she violated protocol.


It is easy to temporarily "fix" the problem. I just go to "open network preferences," click on "assist me," and then go through the diagnostics process. At the beginning of the process, the dots next to "internet" and "server" are yellow, instead of green. During the diagnostics, those two dots change to green, and then the computer tells me that there is nothing wrong with my connection. I close diagnostics, and indeed, my internet works again. For about 3 minutes. Then I have to go through the entire process again.

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Yosemite 10.10.5 Frequent Wi Fi Drops

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