WiFi battery drain - Nexus 7 Q&A, Help & Troubleshooting

I have terrible battery at home, but ok at work. Looking at my graph, the first 2 and last wifi line is home, the 3rd is at work. Mostly screen off. What's going on? Is there a router setting I can change?
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tcat007 said:
I have terrible battery at home, but ok at work. Looking at my graph, the first 2 and last wifi line is home, the 3rd is at work. Mostly screen off. What's going on? Is there a router setting I can change?
Sent from my Nexus 7 using Tapatalk 4
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Click to collapse
I had bad battery life on my S4 right after release. I tracked it down to Multicast being ENABLED on one of my Access Points. I would recommend logging into your routers and/or) access points and look for anything related to Multicast and Disable it (or uncheck it).
Granted this was for a totally different device (note that my Nexus 7 was NOT affected by multicast) but it certainly cant hurt anything by disabling multicast..If it does, just enable it again.
My S4 was using approx 5%-8% of battery per hour with multicast enabled...once I disabled it, I now drain about 1% per hour.
This took me almost 2 weeks to discover...keeping in mind that my S4 never connected to the affected AP. I use that AP for older legacy devices.....just having it on the network affected my S4.
Give it a try..if it does not work..enable it again.

That does sound logical, and I've read about that in other threads. I have a WRT54G router and see nothing about multicast other than "filter multicast" under security (block LAN requests) which is checked to prevent multicast.
The other thing that has changed recently is I switched Cable modems from Cisco 2100 to Motorola SB6141. Not sure if I can change anything in it or if could cause problems.

tcat007 said:
That does sound logical, and I've read about that in other threads. I have a WRT54G router and see nothing about multicast other than "filter multicast" under security (block LAN requests) which is checked to prevent multicast.
The other thing that has changed recently is I switched Cable modems from Cisco 2100 to Motorola SB6141. Not sure if I can change anything in it or if could cause problems.
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I was running Tomato on the WRT54G and that is the setting I was referring to (but under tomato its in FIrewall - "Allow MultiCast"
It seems that you have the "correct" setting - To block multicast - As such, I'm sorry that my fix didnt work for you..
As far as the new Modem, it may be possible that multicast is enabled on the new one. Im not even sure if that is a setting you can change as those motorolas are locked down pretty tight by the ISP's

Related

D

.....10char
thanks. Imma try this at work.
I am confused. Did you not know the stock froyo did wifi tethering? Am I not understanding completely?
pwig said:
I am confused. Did you not know the stock froyo did wifi tethering? Am I not understanding completely?
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You're not understanding completely. My desktop computer does not have a built in wi-fi adapter, so I would have to use a wireless USB network adapter to get internet on this machine. Using this method, I was able to use the internet from my ISP (Cox Communications) rather than resort to using T-mobile's 3G network.
Let me do a flowchart for you:
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Yeah, okay I did understand.
The phone can tether the cellular signal or the wifi signal.
It was implemented in froyo.
What is really cool is how fast it is. My computer is hard wired into my home network and when I activate tethering and disable the wired connection, the difference in speed tests and pings is imperceptible. They are both the same. Very impressive.
I like what you've done. You are tethering your computer to your phone via USB and then using your phone's WiFi connection to connect to your home's WiFi router, then on to Cox and the Internet.
In your diagram, the Internet doesn't lie between your phone and the computer. The Internet lies beyond your ISP. Otherwise nice.
Lastly, the tethering features were added by 2.2 as pointed out already.
Edit: added a diagram
andonnguyen said:
Tips: Speeds are best when screen is left on (for some reason speed is bogged down dramatically when the screen is off - might be a power saving feature).
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By default wifi is set to sleep when the screen is off. Have you disabled this in wifi advanced settings?
Took me a few minutes to understand...
The point to note is: "tethering shares whatever internet connection is available"
1) Connect to the wifi network using your nexus one.
2) Share the internet via USB tethering.

Is this possible?

I have no Wireless networks around me, so I was wondering if it was possible to share my PC's internet with my phone.
I have this cable internet so no wireless :/.
No, just get a wireless cable router and connect the back of your modem to your router. Routers are quite cheap now starting at about £30. Now just use your wifi to connect to internet on phone without using your precious data.
You can also use your phone as a modem to connect your computer to the internet using your phones internet.
if you use xp see here http://www.microsoft.com/windowsxp/using/networking/setup/adhoc.mspx
and windows 7 here
http://lifehacker.com/5369381/turn-your-windows-7-pc-into-a-wireless-hotspot
or you could get a wifi router
and some wifi routers will let you use a Ethernet cable as input - just plug the cable into one of the ports on the back (at least my netgear dg834g will let me)
Holy crap!
I never knew anything about this!
Thanks so much man!
I tried it, and it first says ''Connecting'' and then just disconnects.
Can Fix that
D3VICE said:
Holy crap!
I never knew anything about this!
Thanks so much man!
I tried it, and it first says ''Connecting'' and then just disconnects.
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So, dude you got the router.
So can you tell me the specification or the features of the router
So that I can help you regarding your issue..
Its just a normal cable router.
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That one.
If you are on Windows 7, just use Connectify It's cheaper (free^^) than buying a router.
http://www.connectify.me/ easy to use
I used the AD-HOC thing, and it worked with CM.
it looks like cable modem only, no router.
jazzzy786 said:
No, just get a wireless cable router and connect the back of your modem to your router. Routers are quite cheap now starting at about £30. Now just use your wifi to connect to internet on phone without using your precious data.
You can also use your phone as a modem to connect your computer to the internet using your phones internet.
Click to expand...
Click to collapse
Or 100+ for the apple ones - and you need a modem for them to worl
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Nexus 7 doesn't see wifi connection (yet everything else can connect)

As the title indicates, I've got my wifi going from your typical Linksys WRT54 and the laptop I'm on right now is connected to it and working just fine. Wife's ipad is connected and my Mytouch4G sees it as well.
I've got the wifi analyzer app on my nexus 7 and even it shows a massively strong signal from that wifi connection here in the room but alas, there is no notification on the top status bar of the device allowing me to connect to it.
I've tired restarting the device but that didn't help. Is there anything I'm missing here?
i'm running bugless beast rom which is essentially stock android 4.1.2.
EDIT: FIXED
I figured it out. Those missing settings are revealed by long pressing where it says wifi. That opened up the new menu with all the standard wifi settings. Hit scan and it found the network right away.
Case closed!
Any other Wi-Fi connections to test it on?
Sent from my EVO using xda app-developers app
the wifi analyzer sees about 6 or 7 different networks but there seems to be no way to even attempt to connect to any of them.
at my house, first time connecting it would have up in the top left corner of the screen, the little wifi cone/signal icon with the ? in it indicating that there was a connection I could hop on but that's not there right now.
the wifi icon on the top right typically indicating signal strength is totally empty.
Rescan
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Omar04 said:
Rescan
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how?
I don't see that option anywhere in the settings menu. the wireless & networks section of the settings only has airplane mode, VPN, NFC and android beam.
fastredponycar said:
how?
I don't see that option anywhere in the settings menu. the wireless & networks section of the settings only has airplane mode, VPN, NFC and android beam.
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Settings - Wifi - rescan symbol between the ON switch and + (add).
????
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yet this is what wifi analyzer is showing me
Change the WiFi channel in your router. I had this problem with one of my phones, red that someone had solved it by changing the channel. It sounded to easy but it worked. I really really hate wifi standards.
Sent from my Nexus 7 using xda app-developers app
Fixed. Original post updated with the fix in case someone stumbles upon this thread.
fastredponycar said:
Fixed. Original post updated with the fix in case someone stumbles upon this thread.
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That fix you post it, it's what I was trying to tell you by "rescan". I should be more specific I thought you were more familiar with android.
Good you figured it out. :beer:
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Omar04 said:
That fix you post it, it's what I was trying to tell you by "rescan". I should be more specific I thought you were more familiar with android.
Good you figured it out. :beer:
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Yeah i knew what i needed to do but the only other android device i have is the. Mytouch4G running gingerbread and the wireless network settings are different so i was under the impression that something was missinv or i was doing something wrong.

Droid Turbo 2 WiFi problems

Is anyone having an issue where WiFi disconnects on its own and seems to disconnect the phone from Verizon's network as well.
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I haven't had that problem. I only had a problem with the advanced calling feature turned on during a call.
I did where the phone showed still connected but router showed disconnected. It is not a phone issue, it was an issue with my Linksys N router
Andyland said:
Is anyone having an issue where WiFi disconnects on its own and seems to disconnect the phone from Verizon's network as well.
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I'm having the same issue. The phone shows as connected but it really isn't.
waterninja21 said:
I did where the phone showed still connected but router showed disconnected. It is not a phone issue, it was an issue with my Linksys N router
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What was the issue with the router causing this? Did you fix it?
Thanks!
It seems to be a problem on both the Turbo and the Moto x pure, many people in the Motorola forums say they purchased a new router and it seemed to work. I personally won't be buying a new router just for this phone. Hopefully it will be fixed with the marshmallow update
Well I disconnected my Linksys Router and used the Comcast modem and setup WiFi with it and works great now
extremely frustrated with turbo 2 wifi
I'm having the same problem, and it's true on at least 3 different routers so far. I surely won't be replacing every router I ever need to connect to. As a frequent international traveler this is a HUGE problem for me and will result in my getting a different phone before my next international trip if it is not resolved quickly.
Are they all linksys
waterninja21 said:
Are they all linksys
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No. Haven't tested on any Linksys. All were Netgear routers, 2 with N (running DDWRT) and one with AC (factory firmware) protocol.
Don't know then. Mine has worked fine on a netgear R7000 on stock and dd-wrt.
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Question: Are others who are having this problem on open networks because I share am open network with other people who live at my residence and I don't have this problem when I am visiting my friend who has a secured WiFi connection.

5ghz wifi doesnt appear in my oneplus 5

In my oneplus 5 2.4ghz wifi is working smoothly but 5ghz SSID is not showing . However this 5ghz SSID is working for iphone and mac .
Here is my phone's about.
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Which channel are you using at 5ghz?
I had the problem with my huawei and now with my op5 with channels higher 100.
Try a lower channel - like me at the moment 36. Perfect for all my devices.
JimKnopf13 said:
Which channel are you using at 5ghz?
I had the problem with my huawei and now with my op5 with channels higher 100.
Try a lower channel - like me at the moment 36. Perfect for all my devices.
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still having same issue . Currently i am using Xiaomi router 3 .
Mhh, you can try: Settings -> Backup & Reset and selecting the Network Settings reset option. This will lead to your OnePlus 5 forgetting all Wi-Fi and paired Bluetooth devices.
After resetting the network settings, reboot your 5 and then try again. If this not fix your problems I don't know.
JimKnopf13 said:
Mhh, you can try: Settings -> Backup & Reset and selecting the Network Settings reset option. This will lead to your OnePlus 5 forgetting all Wi-Fi and paired Bluetooth devices.
After resetting the network settings, reboot your 5 and then try again. If this not fix your problems I don't know.
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i dnt know whats wrong tried a lot but doesn't working
I got this probleme on my samsung s tablet with France region software. Il look like the 144 and up wifi channels are only in us and some international devices ignore them. So I put a lower wifi channel 56 i think and it worked.
If you're using Magisk. You could check out (my) Magisk mod https://forum.xda-developers.com/apps/magisk/magisk-oneplus-5ghz-mod-t3656016 it changes the wifi region to 'EU'. I can see and connect to channel 149 for example with this mod.
OnePlus seems to have buggy 5G wifi support, this configuration works on mt OnePlus 5T: Band: 36 (5.180 GHz), Width: 80 Mhz, SideBand: Lower
My problem with 5Ghz wifi is slightly different. While it shows very nice download speed (260-300Mb), the upload is barely reaching 1Mb (while me standing 1 meter away from the router). It's not impossible to upload a photo to cloud or have a call over Viber for example. I tried this and it didn't work:
Resetting all networks settings and rebooting the device
Doing factory reset. I actually rooted my phone without a full backup lately.
My observation: phone shows very nice speed on 5Ghz WiFi without the SIM or when SIM data is switched off. Looks like OP5 modem messes the WiFi connection somehow when mobile data (4G) steps in.
My router is Xiaomi 4A Gigabit edition, by the way.
Did anyone face the same?
it work for me when change channel to 36 (36-48 worked fine)

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