Database Develop

My Razr i makes WiFi drop/crash

Hi folks !
Recently I started to experience some troubles using my WiFis connections. The problem is simple, the connection drops, the WiFi network disappears from all the devices, and a few seconds later it comes back.
At first I thought it was a problem with the router of my work. But then I started to experience the same things at home. Then I decided to test the WiFi without connecting my Razr i to it and it worked like a charm. Now, as soon as I connect my Razr i to a WiFi, it crashes a few seconds/minutes later and keep doing it until I disconnect my phone from the WiFi.
Did someone experience the same thing ? Have you any idea for solving the problem ?
Thanks anyway.
PS : I only use 5Ghz WiFis. I'll try with 2.4 soon but the 5Ghz compatibility was one of the reasons why I bought this phone...

We have also issues with our WLAN at home, which is sometimes (but not always) very unstable in connection with a Samsung 5 Laptop (regular reboots shortly after activating the laptop Wifi).
I did not experience this problem yet with my Razr i, but I will keep it in mind over the next days (we have a complex setup with several computers, phones and Android entities based around a Fritzbox 7390, so error identification and validation takes very long and is not finished yet).
BTW - if you look for help here, please specify your WLAN router in detail as well as your provider and general IT-setup.

Tevac said:
We have also issues with our WLAN at home, which is sometimes (but not always) very unstable in connection with a Samsung 5 Laptop (regular reboots shortly after activating the laptop Wifi).
I did not experience this problem yet with my Razr i, but I will keep it in mind over the next days (we have a complex setup with several computers, phones and Android entities based around a Fritzbox 7390, so error identification and validation takes very long and is not finished yet).
BTW - if you look for help here, please specify your WLAN router in detail as well as your provider and general IT-setup.
Click to expand...
Click to collapse
Well ! Thanks for the reply.
My router that provides the two WiFis is a Cisco Linksys WRT61N.
My setup is kinda complex but works well. Got another router provided by my ISP, which is the DHCP server. This router is connected to a port of the WRT61N switch. Not to the internet port. Every connection that enters in the ISP router goes to the Linksys, and then is NATed by it. I don't think those informations are very relevant but anyway here they are. That's a complex setup but it works well (needed to do that because I have cable connection, and the cable modem/router have very limited configuration).
The devices that use my two WiFi are :
2.4Ghz : My Razr i right now.
5Ghz : Two iPads, and the HTC 8X of my girlfriend.
I made some other tests, one the Razr i there is an option for switching on or off a kind of network frequency. So instead of both enabled, I enabled only the 2.4Ghz WiFi frequency and connected my phone to my 2.4Ghz WiFi. No problems detected. Stable connection. Right now I'm at work, and everything works well in 2.4Ghz. So there is clearly a problem with the 5Ghz frequency on my Razr i.
Anyway, during those tests, I discovered something very interesting. My battery life had a huge improvement with the desactivation of the 5Ghz WiFi frequency.

Thanks for the details - especially on the 2.4/5 GHz topic.
I am also at work right now, but will check it at home and keep you posted.

WPA2
I had the same problem, I think it was triggered everytime the phone went to "sleep". It was changing the security encryption that fixed it for me. I can't remember what i had on the router as default, and I'm not at home right now to check what I'm running, but I believe it's WPA2. After the change, I had no trouble whatsoever. Hope this helps, good luck!
EDIT: nevermind what i said, i just logged into my router and remembered it wasnt the encryption type settings, but rather the wifi standard used, it used to be 802.11 b+n+g, and now i got it sitting at 802.11 b+g, which equals to 2.4 GHz. Meaning the razr has apparently a problem with the 5 GHz spectrum..

I too have a RAZRi which is connected by wi-fi at home to a Fritz!Box 7390. I noticed that when the RAZRi went into sleep mode with wi-fi connected (keep wi-fi on setting) it would have lost any internet connection on waking, requiring a disconnection/reconnection to reset. More annoyingly there was also a loss of connection (IP address) at laptops also connected to the router by w-fi on both 2.4GHz and 5GHz connections, which needed a reboot of either the PC or the router to re-establish a connection. The router GUI would show them all as remaining connected.
By using the manual setting on the router to restrict 2.4GHz connections to b+g (not b+g+n), it looks so far as though both problems are avoided, and the RAZRi can be set to use either the available 2.4GHz or 5GHz (a+n) connection on the Fritz! successfully without problems. EDIT big problem is though that disabling "n" on 2.4GHz seems to cause wi-fi throughputs to crash by more than 50% on both frequencies (which for me negates the benefit of having VDSL) - they recover if I re-enable, but then the lockups start if the phone is connected. A hobsons choice.
Thanks guys.

CM11. Connects to one router but not the other?

Hello folks.
I upgraded my nook hd+ from 10.2 to cm11 the other day, and it is suddenly not connecting to one of my routers. I checked the PW on the router multiple times and it connects to my phone and laptop with no problem. On the WIFI settings menu, it repeatedly shows "connecting" but no connection actually occurs.
The router I can no longer connect to, which is on my floor, uses 2.4 GHz frequency with 108 Mbps features. The router that I CAN connect to is downstairs and uses 5GHz frequency.
Both routers use WPA2 for security and there is no difference in password length or complexity.
Thanks for your help.

My first thought is that you may need to upgrade the firmware in the uncooperative router.
My second thought its that this may be somewhat normal since 2.4GHz has greater range than 5GHz.
My third thought is total confusion over how you can connect to an 802.11a router with an 802.11b/g/n device?

wthelicopt said:
Hello folks.
I upgraded my nook hd+ from 10.2 to cm11 the other day, and it is suddenly not connecting to one of my routers. I checked the PW on the router multiple times and it connects to my phone and laptop with no problem. On the WIFI settings menu, it repeatedly shows "connecting" but no connection actually occurs.
The router I can no longer connect to, which is on my floor, uses 2.4 GHz frequency with 108 Mbps features. The router that I CAN connect to is downstairs and uses 5GHz frequency.
Both routers use WPA2 for security and there is no difference in password length or complexity.
Thanks for your help.
Click to expand...
Click to collapse
You cannot connect the nook @ 5GHz. There is no 5GHz antenna in the nooks. My phone (and yours probably too) has one but the nook hd+ does not.
Addition: There's only one antenna in the nook hd+ as well. No mimo and its garbage single bgn max 65Mbits @ 2.4GHz only.
Wifi in cm11 is a bit flakey at times - its a borked/early cm rom currently with lots of work to go.
Toggle wifi on and off if it doesn't work - this works when the password is good and it didn't connect.
At other times it takes a minute or two to connect.
wellersl said:
My third thought is total confusion over how you can connect to an 802.11a router with an 802.11b/g/n device?
Click to expand...
Click to collapse
5GHz is not just a. Its also for edit:n. Ergo don't need an a router. Something like bg @ 2.4Ghz and na @ 5ghz.
Here's an na 5ghz only ap: http://www.amazon.com/Ubiquiti-UniF...id=1391548701&sr=8-13&keywords=ubiquiti+unifi

[Q] How do you prioritize wifi access points on the N6?

Here's the problem. I have an 802.11ac router at my apartment, with two access points, one of them on the 5GHz band, the other on the 2.4GHz band.
I want my N6 to be forced to go on the 5GHz AP every time, and shun the 2.4GHz AP. This is because at my apartment complex, everyone's got a 2.4GHz router, so even though my N6 thinks it gets a stronger signal in the 2.4GHz band, it will get ****ty bandwidth from the 2.4GHz bands, because everyone in my complex is watching Netflix at the same time. The 5GHz bands are clean, so I get get far more bandwidth there.
So how do I force my Nexus 6 to use my 5GHz AP, and not my 2.4GHz AP?
Yes, I know, you can go into the settings, and tell it to use only 5GHz APs, or only 2.4GHz APs. I'm looking for the setting that says "Strongly prefer 5GHz APs, and only use 2.4GHz when absolutely desperate." That way, I don't have to remember to go into the settings so I can get wifi when I go out for coffee.
I don't want to constantly fiddle with my phone. I want an automated way to make my N6 Do It My Way.
I used to be able to prioritize access points in Kit Kat, but Google thinks we're idiots, so they omitted that feature from Lollipop.
Also, being able to prioritize access points means your phone doesn't log into your neighbor's ****ty wifi that you used once when you went over for beer, when you'd prefer it used your own wifi.
Are there any Lollipop 5.1 compatible apps that let you do this?

Can you go on your router and rename the 5ghz band to a different ssid as the 2.4ghz band.
After that only have the nexus connect to the 5ghz ssid.

trim81 said:
Can you go on your router and rename the 5ghz band to a different ssid as the 2.4ghz band.
After that only have the nexus connect to the 5ghz ssid.
Click to expand...
Click to collapse
That's already done, though I found that the N6 "helpfully" automatically adds the 2.4GHz SSID, since it automatically detects it's going from the same device as the 5GHz AP.

How can it connect to the 2.4 channel if you remove it?
Like I said, make it only know/trust your 5ghz channel.
Completely remove the 2.4 signal

Wifi 2.4 Ghz to 5 Ghz

Hi friend can i switch wifi band from 2.4 ghz to 5ghz in my xperia z (i have lollipop stock rom android 5.1.1 and i have a locked bootloader allowed no) any solution to do that like a MOD .i dont worry if its neccesery to root my device tnx all

If your Router is sending 5Ghz phone should connect to it, its I remember similar topic in Sony forum, and new software(4.4+) is working with it without changing any setting on phone.
Try setting your router with new AP with only 5GHz, then reset your wifi settings in phone and connect again. Restart both devices and check again.
Or if you have possibility assign new SSID with 5Ghz and remove 2.4Ghz. Some routers(like my Huawei) can send both simultaneously, and I just set secondary SSID for that.
2.4 is crowded like hell almost everywhere but to be honest switching to 5ghz is not big difference for me.
Actually 5GHz have bad signal strength and its have problem with sending it to longer distance. Also if you want use only 5, you should remove every 2.4 AP from your phone, because phone ALWAYS choose stronger signal(and 2.4 is always send stronger signal than 5)

Akinaro said:
If your Router is sending 5Ghz phone should connect to it, its I remember similar topic in Sony forum, and new software(4.4+) is working with it without changing any setting on phone.
Try setting your router with new AP with only 5GHz, then reset your wifi settings in phone and connect again. Restart both devices and check again.
Or if you have possibility assign new SSID with 5Ghz and remove 2.4Ghz. Some routers(like my Huawei) can send both simultaneously, and I just set secondary SSID for that.
2.4 is crowded like hell almost everywhere but to be honest switching to 5ghz is not big difference for me.
Actually 5GHz have bad signal strength and its have problem with sending it to longer distance. Also if you want use only 5, you should remove every 2.4 AP from your phone, because phone ALWAYS choose stronger signal(and 2.4 is always send stronger signal than 5)
Click to expand...
Click to collapse
Tnx tnx tnx tnx a lot my friend

How to Double the WiFi Speed of your OnePlus 3/3T

Hello guys;
I read this article. and tried.
https://www.xda-developers.com/how-to-double-the-wifi-speed-on-your-oneplus-3-3t/
I used root explorer, modified WCNSS_qcom_cfg.ini (located in /system/etc/wifi)
I changed "gChannelBondingMode24GHz=0" to "gChannelBondingMode24GHz=1"
I restarted the phone. It connected to wifi and still my 2.4ghz band looks 72 mbps connection speed.
When i use 5ghz band it looks 433mbps speed.
What can i do? :good:

It only helps if your router can do wider signal (20MHz vs 40MHz) as well. 5GHz is irrelevant here, the tutorial only involves bonding 2.4GHz channels.
Do a speedtest to see if there is any difference.

Well, as the article already says: Under Certain Conditions. And it also states that it is not recommended in area's with a large number of networks. The 2.4GHz band is way to crowded.
I guess your access point/router doesn't support 40 MHz channels. Also seeing that your 5GHz is "limited" to 433Mbps, which probably means that it is a little bit older AP/router?
Why do you even want 2.4GHz slowspeeds (Even when doubled) when you have 5GHz which is faster already?

I tried it. At my phone it works.
After changing the value you should do a restart

It works for me too