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Wifi disconnect during sleep

[ Promote]
10093 74 |
10:54, Nov-16-2015 | From PC
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Go to reply no.
Device
Redmi Note 2/Prime
MIUI Version
V7.0.7.0.KHIMICI
Reproduce rate
100%
ROM version
Global Stable ROM
Country/Region
Hong Kong
Description
WiFi disconnected during sleep for some time.
Steps to reproduce
Idle it say for 1 or 2 hours, wifi will be disconnected itself. Awake the phone and wifi will be connected again.
Screenshot
--
Log
--
This post was edited by juskocf at 10:56, Nov-16-2015

The version of my redmi note 2 is     MIUI 7.0 stable 7.0.7.0 (LHMMICI)

The one shown in the table is not correct as I don't have the correct choice.
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MIUI 2015MIUI 7Redmi Note 2Thanksgiving DayAndroid Guru

11:26, Nov-30-2015 | From PC
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This post was edited by linuxovios at 11:27, Nov-30-2015

After extensive tests I can say undoubtedly that after upgrade to 5.11.26 wifi works normally in sleep mode.

However I dealt with the problem of not receiving notifications (over wifi) from a number of apps. While I was receiving notifications from facebook and facebook messenger apps, there were no notifications from all google apps (gmail, hangouts, google+) and tapatalk. Apparently these apps are using GCM (google cloud messaging) which was malfunctioning over wifi. (Everything worked ok over 3g and 4g).

I verified the problem using the push notification checking app which allows the user to test in a second whether GCM notifications are passing through or not. It was very strange, because on other devices (cube u65gt tablet, samsung galaxy s3 smartphone, samsung galaxy core smartphone and galaxy tab pro 10.1 tablet) GCM notifications worked ok. After trying various solutions, I found out that GCM uses ports 5228-5230 to work flawlessly. So I manually set port forwarding in my router's settings for these ports and finally GCM worked fine for my redmi note 2!!!! (my router is ZTE H168N vdsl)

However the question remains why other devices worked fine and redmi note 2 needed manually port forwarding? Maybe there is still a bug in redmi note's software that relates to wifi...

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pedali + 1 Great!

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MIUI 2015MIUI 7Redmi Note 2Thanksgiving DayAndroid Guru

12:29, Nov-20-2015 | From PC
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same problem, even though I have set "keep wlan on during sleep" ---> always

I have posted a detailed bug here --> http://en.miui.com/thread-185699-1-1.html

Please confirm

Rated by 1 person   Experience Reason  

amlbuton + 2 Agreed!

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17:02, Jul-20-2016 | From PC
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Wi-Fi disconnects during sleep although in settings Wi-Fi is ON during sleep

This post was edited by Ragesh at 17:24, Jul-20-2016

Highly irritant bug. Eight months since this bug was initially reported and still the team has not been unable to resolve this. The bug still persists after the latest update to "MIUI Global 7.5 | Stable 7.5.1.0(MXDMIDE)"

To concur, under Advanced Wi-Fi settings, the "Keep Wi-Fi on during sleep" is ON, but when the screen goes into sleep mode, the Wi-Fi disconnects within a couple of minutes, disabling all notifications from apps like WhatsApp, Facebook, Instagram, and a bunch of many apps and thus losing connect completely.

Kindly take this bug report into serious consideration guys.

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12:50, Nov-25-2015 | From PC
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while trawling the forums, somebody posted that in ver 5.11.1, the wifi sleep death bug did not exist and i have downgraded back to 5.11.1 from 5.11.19. so far the bug seems to be fixed. i suspect it's the battery saver apk\module that is causing the problem, hopefully the xiaomi team can take a look at it, otherwise it's a good phone for the price.

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07:58, Nov-24-2015 | From PC
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redmi note 2 and wifi sleepy.

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11:57, Nov-16-2015 | From PC
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Go to Wifi Settings > Advanced Settings > Keep Wifi On During Sleep > Always.

Please Mention if your problem is solved.

Regards,
Fauwaz Ansari

Kindly use [Reply] button while replying, so that i will be notified and I can respond back faster.

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16:24, Nov-16-2015 | From PC
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This post was edited by firmanwahyu at 22:54, Nov-23-2015

have the same problem.. but in dev rom. 5.11.12. already checked the setting.. but still no luck..


Update..
i don't know about others, but mine been solved in 5.11.19, already tested several days....
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 Author| 17:47, Nov-16-2015 | From PC
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Hi, Fauwaz Ansari, I have already set the  " Keep Wifi On During Sleep > Always."  But wifi still disconnected during sleep.

Regards

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20:09, Nov-16-2015 | From PC
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Same here: sometimes WiFi stays on, but, it loses Wifi network's authentication, so I must tap again on my wifi and it connects again,  Dev rom. 5.11.12, Redmi Note 2 Prime here.
____________

Can I root that?
[Oldslowdiver on XDA]

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23:30, Nov-17-2015 | From PC
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Same problem.
China stable 7.0.8.0

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21:50, Nov-20-2015 | From PC
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This bug is present on latest developer build 5.11.19 so I'll confirm it. Although its not 100% reproduce rate, it happens from time to time, maybe 40% in my case

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23:33, Nov-20-2015 | Via mobile
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100% confirmed bug. Dev rom 5.11.12, redmi note 2

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14:02, Nov-22-2015 | Via mobile
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also confirming this bug

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