Database Users

WiFi / battery efficiency

At home my cell coverage is a little spotty. It jumps between 1x and evdo frequently. I'm experimenting with WiFi (just set it up yesterday at home) and I haven't yet had a chance to see first hand, but my question is, if I have a solid WiFi connection, is it more battery efficient than solely using the cell radio? I know that just having wifi on will drain the battery hence my confusion.

Strong WiFi is generally better on battery than even a strong EVDO signal. You should be much better off using WiFi. Make sure to set the WiFi to never sleep in the advanced settings.

zesta said:
Make sure to set the WiFi to never sleep in the advanced settings.
Click to expand...
Click to collapse
Is this a new 2.1 option? I didn't even look for it because I am so used to having keepWiFi installed. Also, I have noticed that my wifi signal appears low even though I am only about 50 feet away from my router with only 1 wall in the way running on 802.11g on a dual band router. Also, my router has the ability to broadcast 2 SSIDs to allow for a guest network so you dont have to give out your WPA password to friends and it firewalls them away from your network. I have noticed that my phone has a problem with this. My netbook sees both SSIDs without any problems and stay connected to my main SSID. On my Hero, the main SSID appears and disappears constantly. I have to log onto my guest network because it is the one that my Hero likes for some reason.

In the WiFi setting, click menu and advanced option is available.
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Great info. Thanks!

Looking for a way to block specific WiFi signals.

I live very close to a hotel which has multiple SSID's that keep interfering with my ability to stay connected to my router.
I've tried hard coding a static ip on the phone, adding the mac address to router, even went as far as creating a separate unhidden network just for the phone. So far, nothing has worked.
So i was thinking that maybe there's a way to have the phone ignore certain signals, lock on to a preferred one or use WiFi but turn off the scanning feature. The only problem is that I haven't been able to find any settings or Apps that will allow me to do it.
So, if anyone has any ideas or suggestions as how, or if, I can make this work, I would greatly appreciate it.
I'm using a Droid 2 Rooted with 2.3.3 and have a Netgear N750 router.
BTW - none of the computers in the house are having this issue.
Sent from my DROID2 using XDA App

So, are you saying the phone constantly tries to leave your home wifi in favor of attempting to connect to the hotel's?

Yes, unless I'm within about 5 feet of my router, the hotel's signal makes the phone keep dropping and reconnecting over and over again.
Sent from my DROID2 using XDA App

Are the hotel's hotspots not WEP secured? That is so odd. If they're unsecured hotspots go over to the hotel and tell them to get their sh*t in order. Otherwise I'm out of ideas, sorry.

No, they are secure. WPA2 as is mine. I don't connect to them. My phone just detects them, drops my connection and tries to connect to them. So that leaves me with no connection and having to use 3G.
But there may be an easier solution to this. After spending a few hours on the Netgear site, it turns out that there is a bug in their firmware that causes signal strength fluctuations. They said a new release should be available in a few weeks.
In the meantime I've changed the channel on the router to auto select which seems to be helping.
I do appreciate you taking the time to assist.
Thanks!
Scott
Sent from my DROID2 using XDA App

Glad there's at least some kind of work around, wish I was of more assistance.

Having a similar problem with a samsung galaxy sii - current internet configuration is through AT&T U-Verse with built in Wireless G router in there Gateway. tried adding a Netgear dual band N router to my network and with the netgear's 2 wifi signals on then my phone just constantly goes into scanning mode and keeps trying to connect between the 3 - things work fine with the wifi turned off in the new netgear kind of defeating the purpose of me installing it - was hoping to have the phone use one of the N signals..

Block bt openzone connection pleaseee!
Desperately need an app for this? Is it not going to be possible for a way to block certain wifi signals because I'm actually going to rip next doors BT openzone router out of the wall and get a hammer to it! My HTC desire hd is insistent on connecting to its poor signal over our excellent one and the worst part is that you can't actually access the network unless you pay BT for a user account! Grrrr.... Please help

Try to connect the network you dont want, then go to wifi management in settings. Long press on the network you dont want and hit forget network. Then your phone shouldnt automatically connect to it unless you tell it to.

wifi issues on N4 possible fix?

for those with wifi 'broken' try to change your router settings to WPA2 personal (TKIP+AES) that seems to work for me now,
other settings 'broke' the wifi
this might be just an issue with must me and my router
*spoke too soon: still broken, it only works certain times, mostly it just spins when i try to connecto to online
the wifi icon keeps flashing a black dot... that means the wifi is NOT working right? it should be just a solid blue bars?
on wifi advanced settings, WPS Pin Entry - what is this and do i need to enter that pin on my router?

still no luck with wifi on my network after flashing back to stock 4.2 from 4.2.1
same 'broken' wifi
might be this phone's wifi hardware is incompatible with wDDRT router?
Firmware: DD-WRT v24-sp2 (10/10/09) std
my other wifi devices work perfectly fine, so im really stumped
in phones advance wifi settings it has this WPS entry - what is this and is it somehow not allowing me full wifi?
i can view playstore,, it checks and loads my gMail but it won't connect to websites
it takes so long to download and install apps from playstore, i have to hit cancel, redownload, reinstall to get it working,etc. its not 'instant' like normal 20Mbps wifi should be
ran speedtest.net app and it wont connect to any servers
if anyone has clues to why my wifi is broken, please PM me thanks
it get a blue 3 to 4 bars on wifi signal but it keeps having this 'black' dot flashing in that wifi signal bar, (what is that?)
shows connected to my wifi at 72Mbps at good strength

I found my solution: in my router I unchecked the option WMM (Wi-Fi-multimedia)-settings (2.4GHz b/g/n). After I activated it, my data speeds increased enormously. Try it & report!

danielvc said:
I found my solution: in my router I unchecked the option WMM (Wi-Fi-multimedia)-settings (2.4GHz b/g/n). After I activated it, my data speeds increased enormously. Try it & report!
Click to expand...
Click to collapse
thanks i will look for that option in my router but don't think i have it

Public wifi and my work wifi working perfect with n4. So it definitely my routers wddrt firmware issues with n4... still gottta figure it
Sent from my TC970 (Wi-Fi) using xda app-developers app

My n4 will not connect to any of the WPA2 AP's around here.

I have the opposite problem. I can connect to my WPA2 router at home just fine but cannot connect to the WEP wifi at work. Well, not reliably. I've gotten connected twice, but was unable to recreate the conditions.
-Matt

I had speed problems with my 5GHz band at home. Connected, but couldn't get over 1Mbps on my 30+ connection. Connected to the 2.4Ghz band and I get significantly faster speeds. Haven't had problems connecting though.

siscim23 said:
I had speed problems with my 5GHz band at home. Connected, but couldn't get over 1Mbps on my 30+ connection. Connected to the 2.4Ghz band and I get significantly faster speeds. Haven't had problems connecting though.
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Click to collapse
I've noticed similar behavior, seems like my 5ghz signal strength is much weaker than my 2.4ghz signal according to my n4.

So this n4 is picky about. Certain WiFi networks.configs
Sent from my Nexus 4 using xda premium

Sometimes, my N4 loses wifi connection at work. It's inconsistent. My work wifi is open but MAC filtered.
There have been 3-4 times when I noticed that it lost wifi connection. I had to turn off wifi radio and back on to reconnect.
OTOH, connection to home DD-WRT wifi router is rock solid.

Set lease time for as long as possible, it normally this is 2 weeks..
sent via xda premium with Nexus 7 or Nexus 4!

I flashed my stock recovery backup and my wifi is working again!

jim.k.yee said:
I flashed my stock recovery backup and my wifi is working again!
Click to expand...
Click to collapse
??????
very strange !!!!
can you test to flash back CWM recovery and test again the wifi ?

Hello, I am also having problems with WIFI. I've tried a lot of things (change the router configuration, the cellular exchange kernel, etc ...) but I could not fix this problem. Can you give any more ideas? I've even thought about buying another router but can be giving the same problem.
I used my wife's phone as a router and it works normally, but when I connect directly to the router from home and he trasfere data only for a few moments and then transferring data, although still seem the symbol of wifi connected.

I found changing a setting on the Nexus 4 seems to have remedied most of my WiFi issues. Forcing the WiFi frequency band to 2.4GHz only instead of Auto appears to have done the trick for me.
In WiFi if you select Settings and Advanced under Wi-Fi frequency band there is an option to force 5GHz or 2.4GHz with the default on Auto.

BigVDawgy said:
I found changing a setting on the Nexus 4 seems to have remedied most of my WiFi issues. Forcing the WiFi frequency band to 2.4GHz only instead of Auto appears to have done the trick for me.
In WiFi if you select Settings and Advanced under Wi-Fi frequency band there is an option to force 5GHz or 2.4GHz with the default on Auto.
Click to expand...
Click to collapse
Will try it, thanks.

BigVDawgy said:
I found changing a setting on the Nexus 4 seems to have remedied most of my WiFi issues. Forcing the WiFi frequency band to 2.4GHz only instead of Auto appears to have done the trick for me.
In WiFi if you select Settings and Advanced under Wi-Fi frequency band there is an option to force 5GHz or 2.4GHz with the default on Auto.
Click to expand...
Click to collapse
I tried but did not fix, thanks for trying to help.

Lucena04 said:
I tried but did not fix, thanks for trying to help.
Click to expand...
Click to collapse
for me too
anyways thanks for the help...

Samsung G935F - wifi problem

Hi ALL,
I noticed that my My Galaxy S7 Edge's Wifi constantly keeps turning off and on for some reason! does anyone else experience this on their phone?
Thank you.

Is their any known wifi issues on Galaxy S6 Edge (international variant)?
Can anyone help.

Could you be more specific? Do you have WiFi turned on while your screen is off? Maybe post your advanced WiFi settings so we can see if there is anything off
Sent from my Nexus 6P using Tapatalk

rxk said:
Hi ALL,
I noticed that my My Galaxy S7 Edge's Wifi constantly keeps turning off and on for some reason! does anyone else experience this on their phone?
Thank you.
Click to expand...
Click to collapse
Recently it happening to me also but don't know the solution.

tin2404 said:
Recently it happening to me also but don't know the solution.
Click to expand...
Click to collapse
The following things have generally helped:
- Set DIFFERENT SSIDs for 2.4 and 5GHz bands. I have found that most devices and routers do a terrible job dynamically switching between the networks if each as the same SSID - I think the chipset recognizes the SSID and constantly jumps from one band to the other depending on which had the strongest signal.
- Disable the bluetooth and wifi SCANNING feature (not bluetooth itself as one of the prior posters cited). This setting is found in "locations" and allows your phone to scan for recognized wifi and bluetooth networks even when wifi or bluetooth is turned off to pinpoint its location. Given that bluetooth only has about a 50 ft range, its puzzling why the bluetooth scanning is even an option
- Set the channel width in the router to 20 MHz or 40MHz. Some products can't recognize the 80MHz channel widths (my old S5 couldn't recognize my travel router if I had it set to 80MHz. Note that this may slow down your connection.
- Disable Smart Network Switch (in Wifi Advanced settings) or other similar setting that dynamically switches between Wifi and mobile data depending on network access
- Get 802.11ac-capable router. This may be less of an issue now, but for a couple years after the ac standard came out, a lot of ac clients would have issues with legacy non-ac routers. Obviously not ideal.

I don't have problem with my S6 Edge connecting to my home wifi.
I tried to disable some setting as Joku suggested and it minimized the wifi connection drops. I noticed that my S7E connected most on my 2.4GHz

rxk said:
I don't have problem with my S6 Edge connecting to my home wifi.
I tried to disable some setting as Joku suggested and it minimized the wifi connection drops. I noticed that my S7E connected most on my 2.4GHz
Click to expand...
Click to collapse
same problem with my S7 Edge

Having this problem only with certain routers (other phone models stay connected just fine). The router only has 2.4 GHz, and bluetooth is off, scanning is off, smart switch is off.
Router is a Verizon FIOS Router Actiontec MI424WR-GEN3I.
US T-Mobile GS7e, on latest firmware.

wifi suddenly wont connect to specific wifi anymore

I wokeup this morning and noticed my mia1 wasn't connected to wifi anymore.
when i went to settings->wifi-> saved networks i could see the target ssid
no matter what i did i couldn't get it to connect to the desired wifi, but it has no problems connecting to other wifi networks.
things i tried
- rebooting phone
- deleting ssid and readding
- rebooting router
- hiding/unhiding ssid in router settings
- toggle airplane mode
- toggle wifi
- connect to 2.4 and 5ghz. both failed.
Anybody have any ideas what the issue might be and how to resolve?

Do other devices connect to that particular wifi? If not, that means there is something wrong with the router, if they connect, there is something wrong with your phone... And I really don't know how to help you, because you listed all the things I would've tried
Sent from my Mi A1 using XDA Labs

You could try changing the wifi PW (router setup) to something short and without special characters.
Just to eliminate compatibility issues...