Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

WiFried: iOS 8 WiFi Issue

medium.com

Post reply on HN
Print view View original

11–20 of 71 posts

Re: WiFried: iOS 8 WiFi Issue

#11

Post by canadev »

In a related but different issue, my iPhone 4S has not been able to connect to wifi since I upgraded to 8.0. 8.1 didn't fix it. It notified me of some patch today; I hope it works.

I tried a few different tricks I found by Googling, like "Reset Network Settings", but they didn't work. It's weird, after upgrading to 8.1, I had Wifi for a short period, then the next time I came back to my phone it was back to being completely gone. As in the Settings app won't even let me turn it on.

Pretty frustrating.

Re: WiFried: iOS 8 WiFi Issue

#12

Post by petemc_ »

canadev wrote: post #11

In a related but different issue, my iPhone 4S has not been able to connect to wifi since I upgraded to 8.0. 8.1 didn't fix it. It notified me of some patch today; I hope it works. I tried a few different tricks I found by Googling, like "Reset Network Settings", but they didn't work. It's weird, after upgrading to 8.1, I had Wifi for a short period, then the next time I came back to my phone it was back to being com…

In my experience, the wifi icon being greyed out can often mean the hardware on your device is no longer functioning. There are plenty of cases of this, seemed to happen most to 4S phones on upgrade from ios6 to 7 but also to iphone 5 as well. Not generally fixable despite people trying crazy things like blowing hair dryer down the headphone socket etc.

Re: WiFried: iOS 8 WiFi Issue

#13

Post by canadev »

petemc_ wrote: post #12
canadev wrote: post #11

In a related but different issue, my iPhone 4S has not been able to connect to wifi since I upgraded to 8.0. 8.1 didn't fix it. It notified me of some patch today; I hope it works. I tried a few different tricks I found by Googling, like "Reset Network Settings", but they didn't work. It's weird, after upgrading to 8.1, I had Wifi for a short period, then the next time I came back to my phone it was back to being com…

In my experience, the wifi icon being greyed out can often mean the hardware on your device is no longer functioning. There are plenty of cases of this, seemed to happen most to 4S phones on upgrade from ios6 to 7 but also to iphone 5 as well. Not generally fixable despite people trying crazy things like blowing hair dryer down the headphone socket etc.

I'm definitely hoping that's not the case... I did have this "no wifi" experience happen once before with this phone on, I think, iOS 6, and I did the "Reset Network Settings" trick and it worked again.

EDIT: After installing iOS 8.1.1, I have wifi back... for now. :)

EDIT 2: Gone again after a reboot, which I did because wifi died. I believe it may have actually crashed my cable modem/router before I rebooted it.

Re: WiFried: iOS 8 WiFi Issue

#14

Post by fit2rule »

Bonjour over Wifi is used for more than Airdrop - its also used for virtualized CoreMIDI endpoints, and Audio too .. maybe there's something to be said about paring down the Bonjour refresh interval or something, but then we'd all be complaining about how long it takes to connect our studio gear to the fancy set of iPads whose soul purpose is to rock and roll ..

Re: WiFried: iOS 8 WiFi Issue

#15

Post by Too »

petemc_ wrote: post #12
canadev wrote: post #11

In a related but different issue, my iPhone 4S has not been able to connect to wifi since I upgraded to 8.0. 8.1 didn't fix it. It notified me of some patch today; I hope it works. I tried a few different tricks I found by Googling, like "Reset Network Settings", but they didn't work. It's weird, after upgrading to 8.1, I had Wifi for a short period, then the next time I came back to my phone it was back to being com…

In my experience, the wifi icon being greyed out can often mean the hardware on your device is no longer functioning. There are plenty of cases of this, seemed to happen most to 4S phones on upgrade from ios6 to 7 but also to iphone 5 as well. Not generally fixable despite people trying crazy things like blowing hair dryer down the headphone socket etc.

The har dryer + fridge trick actually worked for me, but 3 days later the problem came back again. I thought the OP would be about that issue since it is more similar of the WiFi being fried for real.

Re: WiFried: iOS 8 WiFi Issue

#16

Post by refulgentis »

fit2rule wrote: post #14

Bonjour over Wifi is used for more than Airdrop - its also used for virtualized CoreMIDI endpoints, and Audio too .. maybe there's something to be said about paring down the Bonjour refresh interval or something, but then we'd all be complaining about how long it takes to connect our studio gear to the fancy set of iPads whose soul purpose is to rock and roll ..

I loved the homonym misuse of soul for sole, soul actually fits better for the metaphor.

Re: WiFried: iOS 8 WiFi Issue

#17

Post by mrgordon »

Yeah when are they going to fix these issues? Everything was great until iOS 8 & Yosemite. My Mac with Yosemite can no longer use Airplay and my Airport Express no longer shows up as a supported Apple device in Airport Utility (despite the wifi still working)

Re: WiFried: iOS 8 WiFi Issue

#18

Post by PakG1 »

I gotta say that this is annoying. I currently work for a place where we're all Macs and iOS. Many, many devices all over the place, all broadcasting for AirDrop and AirPlay. We're a school, they are useful features. Everything connects to a mesh wifi network. Neighbouring APs are of course on different channels.

It's like we're the perfect environment to experience this problem on a massive scale. We've tested and replicated OP's test results. So now we have a choice between good wifi and AirDrop/AirPlay? This sucks.

Re: WiFried: iOS 8 WiFi Issue

#19

Post by ralucam »

pkaye wrote: post #8

What is the impact on Yosemite if I don't actively use AirDrop. Does it still cause WiFi issues? I'm not clear on the severity of the issue.

The amount of usage doesn't seem to matter in my testing. I didn't share anything (and I also set the discoverable setting to 'no one'), and I see a big difference in the throughput: 38 Mbps (awdl0 interface up) vs ~80 Mbps (awdl0 interface down). Yikes. This was a TCP test using iperf, between the laptop and another machine on the lan.

Turning off bluetooth didn't help, so it looks like it's easy to be affected by the performance hit.

Re: WiFried: iOS 8 WiFi Issue

#20

Post by Osiris »

I have been suffering some really bizarre WiFi issues on my rMBP since upgrading to 10.10. I'll suddenly get latencies of a second or more. Switching WiFi networks or even turning WiFi off and back on again will solve the problem for a short period of time.

I just tested this fix to do sudo ifconfig awdl0 down and my ping times are consistently low.

Post reply on HN