Data not working at all when connecting to 3G? - Nexus 6P Q&A, Help & Troubleshooting

I have recently gotten a new data plan (before I had like 500MB so I didn't even bother with using mobile data) and started using mobile data a lot more. I have found however that when I get 3G signal (it displays 3G in the status bar) no data actually gets transmitted, and I have to keep going until it connects to 4G or H for it to work again.
What can be the issue? I'm on EE, running the latest Pure Nexus ROM and ElementalX kernel with the Amanuensis profile. Thanks!

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4G problem

I did the fix and i am on stock updated all the way from one of the threads in the dev section and before 4G worked with the old radio but cut out all the time So i decided to do this fix and now the 4G connects for about a minute and it disconnects and i am in an area with excellent 4G coverage. So if anyone knows of a 4G connection problem in the Kansas City area please tell me or if it is just my phone tell me how i can fix this problem.
Edit: It appears that 3G cuts in to do data instead of 4G because as soon as it cuts out 3G uses data.
Edit 2: Now if I go in to Setting>Wireless & Networks>4G Settings It says fair - Poor connection, Assuming because i am inside, but i am not connected.
Edit 3: After disabling mobile data in the network settings it now holds the 4G connection well but now i have to wonder why 3G would over take 4G while it is on.
I been having 4g problems since the recent ota update. I hardly get 4g and it's considerably slower.. I'm running full stock with no root. What fix is available?
soxozor said:
I been having 4g problems since the recent ota update. I hardly get 4g and it's considerably slower.. I'm running full stock with no root. What fix is available?
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http://forum.xda-developers.com/showthread.php?t=715915

[Q] Dropping data connection

anyone experiencing data drops particularly when the phone is in weak 4G coverage? It acts like it cant switch between 4G and 3G. sometimes it might take 5 min or more before it will reconnect to data. the phone works fine when it is in a strong signal area. So far I have just experienced this behavior in low signal coverage.
Yesss! Experienced that yesterday. But came back on in 5 min. Usually fixed when u go to settings and switch from the lte to GSM and back to lte but haven't had trouble with it today
Sent from my XT907 using Tapatalk 2
check this thread: http://forum.xda-developers.com/showthread.php?t=1893010
has links to other threads as well
Yours is the first case I've seen where data drops altogether, most have just been going back to 3G too often.
jntdroid said:
check this thread: http://forum.xda-developers.com/showthread.php?t=1893010
has links to other threads as well
Yours is the first case I've seen where data drops altogether, most have just been going back to 3G too often.
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I am having the no data issue as well! I leave my house (on wifi and supposedly 3G or 4G) and I want to start listening to music immediately in my car but I have no data connection once wifi is off. It can take over a minute or more to get a data connection! I was wondering if this had to do with LTE protocol negotiation, as this is my first 4G phone. However it seems way too slow and its very aggravating. When it does get data back, it is usually 4G not 3G. Toggling data mode on and off doesn't fix it. I have not yet tried toggling between CDMA and GSM.
emkman said:
I am having the no data issue as well! I leave my house (on wifi and supposedly 3G or 4G) and I want to start listening to music immediately in my car but I have no data connection once wifi is off. It can take over a minute or more to get a data connection! I was wondering if this had to do with LTE protocol negotiation, as this is my first 4G phone. However it seems way too slow and its very aggravating. When it does get data back, it is usually 4G not 3G. Toggling data mode on and off doesn't fix it. I have not yet tried toggling between CDMA and GSM.
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does it only happen when you're leaving wifi and going to cell data?
My experience with data connection was spotty for the first couple days. Going from WiFi into 4G then 3G on the way to work required a reboot to pick up the 3G after I arrived.
I think I may have found my issue.
Settings -> More... -> Mobile Networks -> Network Mode
Was originally set to "Global". I've found that "LTE/CDMA" works better for me.
hope this helps some.

4.4.4 Tethering Stops During Phone Calls

I haven't seen any reports of bluetooth or wifi tethering not working while in a phone call but that is what is happening to my nexus 4. I'm using Purity rom with a hybrid radio and have LTE enabled. Whenever I make a phone call, the data connection type letter on the signal bars in the notification drop down disappears. It's like the data connection completely stops.
If I am not tethering and make a phone call, the data connection type letter stays active and I can use the connection with various apps. It only seems to cut out when I am tethering with either bluetooth or wifi. Is this a normal problem? I was thinking I might have to apply the tmobile tethering fix:
http://forum.xda-developers.com/nex...s-4-lte-lte-tethering-hotspot-t2416822/page41
to fix it but wasn't sure it was still really necessary in 4.4.4 or that this problem was even related. I thought that fix was for if you kept being redirected to the upgrade page of tmobile. My plan is truly unlimited 4g (not the 2gb of high speed data then throttling down to 2g speeds) and tethering is included. I'm not being redirected anywhere. The data connection just stops. I was thinking this was a problem with 4.4.4 since it has never happened to me on other versions.
I'm pretty sure that the way Mobile data works makes it impossible to both call and receive data at the same time.
Mine does the same thing on my sprint galaxy note 4. I am rooted using the native tether (unpaid). As soon as I receive a call, tether looses connection and stops.
I'm coming from a sprint galaxy note 2 with the same setup. I've never had this problem in the past. I was able to tether and use other apps during calls. The only difference, from what I can tell, is that my note 2 said "4g",and my note 4 says "LTE". Help please....
Sent from my SM-N910P using XDA Premium 4 mobile app

[Q] 4G always on!

Hi. On my gm-g900i (australian) s5 i have the latest XtreStoLite installed with the correct bootloader & modem.
For some reason at all times it shows 4g in the status bar, even when i am not in an app that requires internet. It will only drop to 3g when i am in a poor signal area.
Why does this not dynamically change based on apps used, as it did in kit kat? Have i done something wrong? I am after the power saving of 3g for background data, then 4g when using an app like facebook, chrome etc. This was automatic before?
thanks in advance.
If you're in a 4G enabled area, it'll connect to 4G
If you don't want it to, disable mobile data

Problem with LTE data connection

I have the Sprint variant, G900P.
Data via wi-fi works consistently and well; mobile data is the problem.
Data via 3G works most of the time but data via LTE does not work - apps show 'unable to contact server'. This is not related to signal strength or a specific tower. LTE lights on the notification bar, but no data transfers. Occasionally, but not consistently, if I cycle 'mobile data' then a data connection establishes in LTE but soon disappears, even tho signal strength and LTE connection remain.
Is this a modem problem? Phone is rooted and running a slightly debloated stock 6.01 ROM (CQD1).
seattleal said:
I have the Sprint variant, G900P.
Data via wi-fi works consistently and well; mobile data is the problem.
Data via 3G works most of the time but data via LTE does not work - apps show 'unable to contact server'. This is not related to signal strength or a specific tower. LTE lights on the notification bar, but no data transfers. Occasionally, but not consistently, if I cycle 'mobile data' then a data connection establishes in LTE but soon disappears, even tho signal strength and LTE connection remain.
Is this a modem problem? Phone is rooted and running a slightly debloated stock 6.01 ROM (CQD1).
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You may want to contact sprint to make sure its not your SIM card or the modem itself going out.
You can try and wipe the phone and go back to a regular stock, it may or may not help tho.

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