Wifi drops when phone is locked or goes to idle and reconnect when screen is on.
This happens after the last ios update.
Model :iphone 5.
iPhone 5, iOS 10.3.3
This is not anecdotal. I have been testing it with every iOS release. Nothing has changed. Here is how to actually test it:
Every time a major version is released I do this again. The response has never changed in 10 years.
Repeat the test with the phone plugged in; it won't go to sleep. It may wake up for a few seconds if the phone receives a notification such as a Push email alert, which is an external stimulus, but apps that originate communications will not wake it and will use cellular data.
Exactly and I will try for another time to Restore as NEW my iPhone X and try to see if the problem persists ! Others who have other iPhone models can try and then accordingly I will file a Bug Report about this !
After doing this I also realized that the iPhone responds to a PING command after a period of time!
Whereas if Auto-Login is Enabled then when Wi-Fi goes into Deep Sleep State once the iPhone Stops responding to PING command it never will acknowledge it henceforth and I believe that this Auto-Login is causing the Wi-Fi to Disconnect which shouldn't be the case and hence causing notifications to be delayed or missed as a result!
Yes ! Certain people will not get the option and certain people will ! I have tried to ask Apple why certain people get it but they just say it’s a security difference! Now I have tinkered with my security and have this option regardless!
I would like to know the answers from you to the following:
1)What is your Security Protocol for your Wi-Fi?
2)Do you have WPS enabled ?
Also these options showed up in my case only on iOS 11 so please confirm which iOS you are running !
Well. That’s interesting. I already recognised something familiar: When using Spotify to stream music it also stays connected. As well as using an App called constant WiFi. That’s using your location in the background to stay connected.
Nope, every one I've ever had (and every other similar BT device) drops the WiFi connection when it goes to sleep and is not on external charging.
Go to Settings -> Wifi -> Tap the " i " with the circle around it next to your network name and Toggle Off Auto-Login
Settings->WiFi-> Tap the “ i “ symbol next to your connected network and you will see the options !
If two devices after the update shows same symptoms its definitely a software issue. I am betting on that. I am not the only one with the same issue after the update. It wont be solved until apple address it .
Dude. The two devices i am referring 1 belongs to me and one SE model of my friend. We both facing same issue after the update. So stop being an apple fan boy and try to understand there is some serious glitch in this particular update.
Its just commonsense when two perfectly working device got messed up after the update, then the culprit is the update.
And to the people saying this is a feature of iOS, its not. Do a ping test for iphones working with iOS 10 or 9. Wifi wont drop when its locked. Verified by myself. This is completely annoying. I came here looking for answer but this thread has become a place to show they know better than anyone else.
There is an issue. Period.
No. You are wrong. Wifi will stay on even in locked. May be in iOS 7 or before your arguments may be correct.(There are apps to keep wifi active like "Constant wifi" just to overcome this issue back then but later iOS changed this option to constant connection) .Do the ping test and you will get constant feedback. The affected iphones will drop wifi immediately after locked.
Test it by yourself instead hanging on to your theory. I am doing this test with various iphones i have access to. Only mine is dropping the connection.
Still there is a 30 min window for timer. Our issue is wifi drop immediately after screen is locked. these 30 min theory is logical to save power. But immediate drop of wifi (say 10-15 seconds) after lock is never been a feature of iOS.
I know mine drops wifi - I'm not surprised it does (all my devices other than beta are 10.3.3).
And that documentation is NOT old. It was updated March 27th of this very year. It is current developers documentation for iOS 10.
Clearly you know all and see all, so I will not add more. This is not "theory" this is simple fact of how iOS works, and how iOS has always worked.
Just do the ping test like i suggested and see for yourself.(if you are running on ios10 or later). Seriously I write what i just did. Wifi is not dropping like my affected phone. My phone hardly keep wifi on for 20 seconds. A normal iphone i dont know for how long but it definitely not gonna drop wifi and disconnect from router after 20 seconds. Say what you want. If your phone wifi is dropping after 20 seconds its not a feature. period. No sane programmer will code like that.
"UIRequiresPersistentWiFi " the app is consider inactive when screen is locked.
Clearly mentioned wifi hardware goes to sleep only after 30 min after no app is requested that key.
It still gives a 30 min timer window.
The app is considered inactive, and although it may function on some levels, it(app) has no Wi-Fi connection.
Means the app wifi socket is closed not speaking about iphone wifi hardware. Hardware goes to idle only after 30 minutes.
No point arguing . I am watching what i explained with my naked eyes.
Going to hard reset and try my luck again.. Look like thats the only solution.
My active client list is refreshed every 10 second. Once connected it shows immediately shows active list and once disconnected it goes away. so I can see which device is connected. I tested in my office and my home and complete disconnection. Iphone without issue even after the request time out on normal ping shows on client list. And if i ping say whatsapp instant push notification while my phone simple sit there without any response. This is the exact issue we are facing. Once locked no more notification. And other iphone have (with mobile data off obviously). Does your wifi symbol greyed out then disappear and comes back after 5-6 seconds when screen is unlocked? I bet no.
//None of my devices every disappear from my router connection map, even when the device is not connected to WiFi. [Your router might not have an active client list]//
I noticed the same thing started happening maybe a month or so ago, with my iPhone 6 on iOS 10.whatever, and on two different WiFi networks. My phone is now on iOS 11 and doing the exact same thing. I'm not technical enough to do the ping stuff, but I do know that what I noticed started happening a month or so ago was new and different, because I am observant. At first I thought it was a router issue, but new routers in both locations (for unrelated reasons) and this still occurs.
I wake the phone, the WiFi icon appears momentarily (not grayed-out, though), then it disappears and is replaced with the 4G icon, then 3-6 seconds later the 4G icon disappears and the WiFi icon returns and stays. This happens with both iPhone 6 and iPad Air, and in iOS 10.whatever and now in iOS 11, and in both places where I'm located, with different ISPs and different routers.
Maybe mine is just useless anecdotal information and all the others who say this behavior is how it's always been are correct, but there seems to be something different happening over the past month-plus, IMO.
Wifi drops when phone is locked after 10.3.3 update
