 darciliciousCyber LibrarianPremium
join:2001-01-02
Forest Grove, OR
kudos:2
 ·Frontier FiOS
| reply to metrodust
Re: iOS loses WiFi when sleeping If the wifi connection isn't being actively used while the screen is locked (e.g. streaming audio) then the wifi connection probably should drop. The issue I had previously, is that wifi wouldn't reconnect automatically as it should. I literally had to go into Settings and turn it off and back on before I had active wifi again.
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♬ Music is life ♬ |
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 haroldo
join:2004-01-16
united state
kudos:1
 ·Comcast
| said by darcilicious:If the wifi connection isn't being actively used while the screen is locked (e.g. streaming audio) then the wifi connection probably should drop. ...
I don't agree, it shouldn't drop as iCloud automatic backup requires the phone to be plugged in and connected to WiFi to do it's thing. In addition, iTunes WiFi automatic sync requires the phone to be on WiFi. If I'm not mistaken, it slept in WiFi before upgrading. |
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 not quite rightI'm not cool enough to be a Mac person
join:2001-06-23
Puyallup, WA
kudos:1
 ·Vonage
·Comcast
| Just out of curiosity how do you know it's dropping Wi-Fi? Is it not updating? What are the symptoms? Does it show a cellular data connection every time you wake it? Are you not seeing it in iTunes?
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Not many people know this, but I happen to be quite famous... |
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haroldo
join:2004-01-16
united state
kudos:1 Reviews:
·Comcast
| said by not quite right:Just out of curiosity how do you know it's dropping Wi-Fi? Is it not updating? What are the symptoms? Does it show a cellular data connection every time you wake it? Are you not seeing it in iTunes?
It doesn't appear in iTunes (iTunes only recognizes iDevices in WiFi).
When you touch the device to wake it, it shows 3G. Only when you slide the bar and start to unlock it will it toggle to WiFi.
It shows 3G >90% of the time on wake up...maybe more. |
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darciliciousCyber LibrarianPremium
join:2001-01-02
Forest Grove, OR
kudos:2 Reviews:
·Frontier FiOS
| reply to haroldo
said by haroldo:said by darcilicious:If the wifi connection isn't being actively used while the screen is locked (e.g. streaming audio) then the wifi connection probably should drop. ...
I don't agree, it shouldn't drop as iCloud automatic backup requires the phone to be plugged in and connected to WiFi to do it's thing. In addition, iTunes WiFi automatic sync requires the phone to be on WiFi. If I'm not mistaken, it slept in WiFi before upgrading. How are you determining that an iCloud backup needs to happen and is not? If an iCloud backup is not needed, why would wifi have to be on/active when the iDevice is otherwise idle?
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♬ Music is life ♬ |
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not quite rightI'm not cool enough to be a Mac person
join:2001-06-23
Puyallup, WA
kudos:1 Reviews:
·Vonage
·Comcast
| reply to haroldo
said by haroldo:said by not quite right:Just out of curiosity how do you know it's dropping Wi-Fi? Is it not updating? What are the symptoms? Does it show a cellular data connection every time you wake it? Are you not seeing it in iTunes?
It doesn't appear in iTunes (iTunes only recognizes iDevices in WiFi). When you touch the device to wake it, it shows 3G. Only when you slide the bar and start to unlock it will it toggle to WiFi. It shows 3G >90% of the time on wake up...maybe more. Ok I'm sure you know what I'm going to suggest ... but before we go down that road though let's try deleting your Wi-fi account from your iPhone, then reboot both your phone, and your Airport extreme. Re-astablish your Wi-Fi account on your iPhone, again reboot both the phone & the router.
Now once both have finished rebooting open up iTunes plug in your iPhone, make sure the box" sync this iPhone over wi-fi" is checked, and preform a manual sync, when the sync finishes do not eject the iPhone from iTunes just simply unplug it.
If this has not resolved your problem ... Restore As New! 
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Not many people know this, but I happen to be quite famous... |
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haroldo
join:2004-01-16
united state
kudos:1 | As far as restore is concerned, I recently restored my iPad, for a non-related issue, and the bug still exists.
As far as your suggestion, I'll give it a shot. |
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not quite rightI'm not cool enough to be a Mac person
join:2001-06-23
Puyallup, WA
kudos:1 Reviews:
·Vonage
·Comcast
| said by haroldo:As far as restore is concerned, I recently restored my iPad, for a non-related issue, and the bug still exists.
As far as your suggestion, I'll give it a shot.
As new or from a back up?
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Not many people know this, but I happen to be quite famous... |
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haroldo
join:2004-01-16
united state
kudos:1 | from a backup (D'oh!) |
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not quite rightI'm not cool enough to be a Mac person
join:2001-06-23
Puyallup, WA
kudos:1 Reviews:
·Vonage
·Comcast
| said by haroldo:from a backup (D'oh!)
Exactly ... lets try the other method first though. 
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Not many people know this, but I happen to be quite famous... |
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haroldo
join:2004-01-16
united state
kudos:1 Reviews:
·Comcast
| Thanks!!!
Both iDevices woke up in wifi this morning!
Of course, the process was not without a few hitches, including losing Internet after rebooting Aorport Extreme router (I made the wife call Comcast so it was pain free to me)...yes, I tried a power cycle.
In addition, for some reason iTunes cable sync failed. I googled it and found I needed to delete (preferences/devices) the backup.
But other than those minor glitches, it worked.
FWIW, on iPhone, I followed your instructions. However, on iPad, all I did was forget the network, reboot iPad and cable sync to iTunes. I didn't want to have router issues again and I assumed that since I already rebooted the router once, what ever magic this step performed was already done.
In any event, thanks for your help! |
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not quite rightI'm not cool enough to be a Mac person
join:2001-06-23
Puyallup, WA
kudos:1 Reviews:
·Vonage
·Comcast
| said by haroldo:Thanks!!!
Both iDevices woke up in wifi this morning!
Of course, the process was not without a few hitches, including losing Internet after rebooting Aorport Extreme router (I made the wife call Comcast so it was pain free to me)...yes, I tried a power cycle.
In addition, for some reason iTunes cable sync failed. I googled it and found I needed to delete (preferences/devices) the backup.
But other than those minor glitches, it worked.
FWIW, on iPhone, I followed your instructions. However, on iPad, all I did was forget the network, reboot iPad and cable sync to iTunes. I didn't want to have router issues again and I assumed that since I already rebooted the router once, what ever magic this step performed was already done.
In any event, thanks for your help!
Nothing too technical about all the rebooting. All we were doing was deleting the old connection, and letting all of the devices get a fresh new handshake with each other. Glad to hear your iWorld is back in order.
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Not many people know this, but I happen to be quite famous... |
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 not
@comcast.net | What you're describing is normal behavior for the device. It's always done this, even under iOS 4 and 5. You might just not have noticed it. Also, keep in mind that if you connect to a new WIFI (or in this case, delete the home WIFI and reconnect it), it'll remain attached to that WIFI for as long as you don't move away from it. Once you get out of reach from it and it no longer becomes the last attached and last connected WIFI hotspot, the device will default back to turning off WIFI when sleeping.
It's a pattern I noticed a long time and and it hasn't changed its behavior in quite a few iOS versions. Also, you don't have to unlock it to bump it back into WIFI mode when it's sleeping. Just wake it... it just takes a few seconds to connect back up, but it'll do it even if it's still locked. |
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not quite rightI'm not cool enough to be a Mac person
join:2001-06-23
Puyallup, WA
kudos:1 Reviews:
·Vonage
·Comcast
| said by not :What you're describing is normal behavior for the device. It's always done this, even under iOS 4 and 5. You might just not have noticed it. Also, keep in mind that if you connect to a new WIFI (or in this case, delete the home WIFI and reconnect it), it'll remain attached to that WIFI for as long as you don't move away from it. Once you get out of reach from it and it no longer becomes the last attached and last connected WIFI hotspot, the device will default back to turning off WIFI when sleeping.
It's a pattern I noticed a long time and and it hasn't changed its behavior in quite a few iOS versions. Also, you don't have to unlock it to bump it back into WIFI mode when it's sleeping. Just wake it... it just takes a few seconds to connect back up, but it'll do it even if it's still locked.
OK ya you're wrong. When you wake the device and it's displaying a Cellular data symbol it was connected to a cellular data network plain & simple. When on a wi-fi network the iDevice should stay on that network until the signal degrades to the point of dropping the signal and switching to a stronger wi-fi signal or cellular data signal.
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Not many people know this, but I happen to be quite famous... |
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haroldo
join:2004-01-16
united state
kudos:1 Reviews:
·Comcast
| reply to not
said by not :What you're describing is normal behavior for the device. It's always done this, even under iOS 4 and 5. You might just not have noticed it. Also, keep in mind that if you connect to a new WIFI (or in this case, delete the home WIFI and reconnect it), it'll remain attached to that WIFI for as long as you don't move away from it. Once you get out of reach from it and it no longer becomes the last attached and last connected WIFI hotspot, the device will default back to turning off WIFI when sleeping...
I don't believe this is so, since there are functions that are designed to occur only when the phone is locked, powered off and connected to WiFi. |
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not
@comcast.net | reply to not quite right
said by not quite right:OK ya you're wrong. When you wake the device and it's displaying a Cellular data symbol it was connected to a cellular data network plain & simple. When on a wi-fi network the iDevice should stay on that network until the signal degrades to the point of dropping the signal and switching to a stronger wi-fi signal or cellular data signal.
No I'm not wrong. When the device is in Sleep mode AND NOT PLUGGED IN, it'll drop off WIFI and back to 3G or whatever other cellular signal you're connected to. It's like this by design. |
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not
@comcast.net | reply to haroldo
said by haroldo:I don't believe this is so, since there are functions that are designed to occur only when the phone is locked, powered off and connected to WiFi.
Like I said above. The requirements for WIFI sync to iTunes, etc. all require that you're plugged into power. When an iPhone is plugged into power, WIFI remains on when the phone gets locked and goes into Sleep. When unplugged from power and locked/Sleep mode, WIFI gets turned off and it's back to cellular only connectivity until you wake it up, at which point it reconnects to known WIFI networks in range that it's been connected to before.
This is how the normal behavior is. The defining variable here is having the phone plugged into a power source. |
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haroldo
join:2004-01-16
united state
kudos:1 Reviews:
·Comcast
| said by not :...
Like I said above. The requirements for WIFI sync to iTunes, etc. all require that you're plugged into power. When an iPhone is plugged into power, WIFI remains on when the phone gets locked and goes into Sleep. When unplugged from power and locked/Sleep mode, WIFI gets turned off and it's back to cellular only connectivity until you wake it up, at which point it reconnects to known WIFI networks in range that it's been connected to before... Except mine was sleeping while plugged in and always lost WiFi connectivity, so... |
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not quite rightI'm not cool enough to be a Mac person
join:2001-06-23
Puyallup, WA
kudos:1 Reviews:
·Vonage
·Comcast
| reply to not
said by not :said by not quite right:OK ya you're wrong. When you wake the device and it's displaying a Cellular data symbol it was connected to a cellular data network plain & simple. When on a wi-fi network the iDevice should stay on that network until the signal degrades to the point of dropping the signal and switching to a stronger wi-fi signal or cellular data signal.
No I'm not wrong. When the device is in Sleep mode AND NOT PLUGGED IN, it'll drop off WIFI and back to 3G or whatever other cellular signal you're connected to. It's like this by design. Yes you are most definitely wrong iPhones, and dare I say all smartphones have always been designed to stay on a known Wi-Fi signal. Reasons being Wi-Fi for the most part is historically faster than cellular data (unless one has LTE), and has a stronger more reliable signal causing significantly less battery drain because the cellular radio is not constantly trying to connect to a more distant cell tower, so as you can see it makes absolutely no sense for the phone to constantly be switching between Wi-Fi and cellular data unless there was an issue with the Wi-Fi connection. This seemed to be the problem the OP was having, so the first step in trouble shooting a Wi-Fi issue would be to "flush" the old connection from the system and establish a new connection between the device and the network. The OP then preformed this procedure achieving the desired results of not switching between the two data formats on two iDevices thus becoming happy with their now properly preforming devices, and proving my point at the same time.
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Not many people know this, but I happen to be quite famous... |
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not
@comcast.net | Nope. WIFI on an iPhone when active actually uses more power than cellular. Also, when WIFI is On on the iPhone, it doesn't shut cellular off. Where did you get that idea? What do you think it uses for calls and text message that aren't data based (i.e. iMessage)? It remain connected to both cellular and WIFI when WIFI is used. An iPhone actually never turns cellular off to save power.
Also, go read the Apple requirements for WIFI Sync to iTunes. It requires the device to be connected to power and be attached to a WIFI network. The reason being is that it requires that power plug to be connected in order to keep WIFI on. Sure, you can trigger a manual WIFI sync without power connected to it, but that's because when the device is away, it'll connect to WIFI due to the user actually using it. Being connected to power is the only thing that'll keep an iPhone from dropping off WIFI to save power. Plain and simple. |
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