Push - While Asleep

[spyz88]

Just tested, iPhone 2G is asleep in the cradle for 15min, and I wake it up, no service, WiFi is 100% connected.

tested again and WiFi is disconnected when off the cradle. You are right. My suggestion is to leave it in the cradle in your basement.

You really need to realize that WiFi is completely OFF when your phone wakes up. 90 people have told you so and I am the 91st.

 

[CD3660]

Just tested, iPhone 2G is asleep in the cradle for 15min, and I wake it up, no service, WiFi is 100% connected.

tested again and WiFi is disconnected when off the cradle. You are right. My suggestion is to leave it in the cradle in your basement.

Are you saying that the wifi symbol is there the moment your screen lights up to come out of sleep mode?

 

[Ori]

reading the apple forums, I am starting to think the issue is my PIN lock. When the PIN lock activates, email push stops. I actually do get notified when asleep but before my PIN lock (15 mins).

Any replicate this?

Tried this for you with my mobileme push account. Still received push notifications while the phone was in sleep and pin locked.

Best thing to do is to switch to fetch notification, then switch phone off then on. Turn back onto push. Delete the account from iphone. Off then on, then load up account again. See if that solves the problem although if you don't have a cell signal and are relying on wifi then I think that could be your issue as Wifi does switch off while asleep and will only switch back on while asleep during a "fetch" send/receive not push!

 

[abnospam]

do we know which protocol is used to notify new email and then download email?

I seem to recall activesync using hidden SMS to notify the phone of new changes. The phone then pulls the changes (a real hack compared to blackberry, but nevertheless...).

If this is the case, my phone, without a signal, never gets that activesync sms and thus never downloads the new email. WiFi may be able to download the email changes, but it needs to know there is a change in the first place.

any thoughts on this theory?

 

[sibruk]

Just tested, iPhone 2G is asleep in the cradle for 15min, and I wake it up, no service, WiFi is 100% connected.

tested again and WiFi is disconnected when off the cradle. You are right. My suggestion is to leave it in the cradle in your basement.

This might suggest that WiFi does stay connected when the phone has a power source plugged in, but disconnects in sleep when it is just on the battery. This would seem a sensible choice by Apple to me. I'll have to try it both ways.

 

[nm1213]

do we know which protocol is used to notify new email and then download email?

I seem to recall activesync using hidden SMS to notify the phone of new changes. The phone then pulls the changes (a real hack compared to blackberry, but nevertheless...).

If this is the case, my phone, without a signal, never gets that activesync sms and thus never downloads the new email. WiFi may be able to download the email changes, but it needs to know there is a change in the first place.

any thoughts on this theory?

There is no SMS anymore.. it is all done via RPC/HTTP and heartbeats.

N.

 

[abnospam]

Check my thread out on this:
https://forums.macrumors.com/showthread.php?p=5929174&posted=1#post5929174

Call Apple and let them know. They told me they have not heard about this before and may want me to pay for enterprise support to troubleshoot Exchange. I doubt this is an Exchange server side problem though... more like an activesync bug like what happened with the HTC Kaiser. The link to that issue is linked in the above post.

N.

If you follow this link to another link:
http://www.howardforums.com/showthread.php?t=1399459&page=2&pp=15

you will see people narrow it down to this....
1. Wifi Connection On
2. Cell Signal Available
3. Phone goes to deep sleep (about 1 hour)

It seems the wifi gets shut off, but the phone doesn't defer to the cell network. If you turn off wifi this doesn't happen apparently. I havent test it though.

 

[nm1213]

If you follow this link to another link:
http://www.howardforums.com/showthread.php?t=1399459&page=2&pp=15

you will see people narrow it down to this....
1. Wifi Connection On
2. Cell Signal Available
3. Phone goes to deep sleep (about 1 hour)

It seems the wifi gets shut off, but the phone doesn't defer to the cell network. If you turn off wifi this doesn't happen apparently. I havent test it though.

I've had wifi off, but with the same issue.

N.

 

[abnospam]

There is no SMS anymore.. it is all done via RPC/HTTP and heartbeats.

N.

good to know, thanks

 

[bbotte]

Are you saying that the wifi symbol is there the moment your screen lights up to come out of sleep mode?

Yes on the cradle charging it is there, not on the cradle and laying on a table the WiFi icon is not there upon wake up.

I could take a video tonight to prove it once I get home....

I also navigate to a web page and there is no lag like it is reconnecting when on the cradle.

I haven't tried to leave the phone off for an hour yet, I will now and test again.

 

[abnospam]

I continue to have mail just stop updating. It seems related to sleep, changing connection methods (wifi, 3g, edge), uptime or something else.

I have found today that if I hold home while in mail, it cleans it up and mail will start working again for a bit.

 

[abnospam]

NEW INFO...

so if I hold home for 10 secs in mail and leave it, it continues to get push while asleep and pin locked (on wifi + edge).

It seems suspending the mail app is a problem in this scenario.

 

[MattZani]

WiFi is on when asleep!

Since the 2.0 update, my touch's battery goes down in sleep, and a friends router disconnects after 3 hours of no use, with the touch asleep, it will never shut off, because the touch is using it.