[Q] 4G connection issue

evolwun said:

I am unable to get reliable data on my CM11 rom on my razr maxx. I have checked all the network setting with a friend's whos is working and there are two differences:
1. His APN is grayed out
2. I do not get a "pass" on HTTP client test when I go into #*#*4636*#*#

When I fire up the phone it connects at 3G. It then takes about 10 minutes to go to LTE. When it does, it is DOG slow.

I also have the same issue with CM11 roms on my Incredible 4G LTE. It was thinking it was the sim, but it works fine on a stock rom. I have seen other folks with similar issues, but no resolution.

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check jakedhs07 cyanogenmod thread about restoring apns

Probable Fix - By ME! (CDMA ONLY - XT912)

This is what I did to fix the issue. It doesn't just fix the LTE, but the entire connection overall. (Atleast for me, please leave a follow up if you try this).
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First things first, goto your APN settings (System Settings > Mobile Networks > Access Point Names)
1) Delete all existing APNs. (tap the APN to enter configuration, open menu and delete the APN.
2) Create a new APN.
Enter the following information:
---
I tried this and it worked. Basically it is stealing the stock APN.

vazersecurity said:

This is what I did to fix the issue. It doesn't just fix the LTE, but the entire connection overall. (Atleast for me, please leave a follow up if you try this).
---
First things first, goto your APN settings (System Settings > Mobile Networks > Access Point Names)
1) Delete all existing APNs. (tap the APN to enter configuration, open menu and delete the APN.
2) Create a new APN.
Enter the following information:

Code:

[U][B]Name[/B][/U]
Verizon Internet
[U][B]APN[/B][/U]
VZWINTERNET
[U][B]Proxy[/B][/U]
Not set
[U][B]Port[/B][/U]
Not set
[U][B]Username[/B][/U]
Not set
[U][B]Password[/B][/U]
Not set
[U][B]Server[/B][/U]
Not set
[U][B]MMSC[/B][/U]
http://mms.vtext.com/servlets/mms
[U][B]MMS proxy[/B][/U]
Not set
[U][B]MMS port[/B][/U]
Not set
[U][B]MCC[/B][/U]
311
[U][B]MNC[/B][/U]
480
[U][B]Authentication type[/B][/U]
Not set

[U][B]APN Type[/B][/U] (NOTE: Must be exact)
default,mms,dun,stdhipri,supl

[U][B]APN Protocol[/B][/U] (NOTE: If doesn't change immediately, try again.)
IPv4/IPv6

[U][B]APN roaming protocol[/B][/U]
IPv4
[U][B]Bearer[/B][/U]
LTE
[U][B]MVNO type[/B][/U]
None

---
I tried this and it worked. Basically it is stealing the stock APN.

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I just tried this in an attempt to resolve my LTE connection issues and APN issues with CM11. Rebooted the phone and it quickly connected to 4G LTE. Will let you know if it doesn't work. Verizon XT912 user in California.

ZexGX said:

I just tried this in an attempt to resolve my LTE connection issues and APN issues with CM11. Rebooted the phone and it quickly connected to 4G LTE. Will let you know if it doesn't work. Verizon XT912 user in California.

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I have been having issues connecting to the LTE network. Right now, there is no solution. I have tried almost everything. I have even tired flashing back to stock with RSD Lite. I made sure that it wasn't the SIM card (i have had issues with the SIM before on a different phone) by putting it in a different/newer 4G LTE device and it connected to 4G LTE with no problem. My RAZR will connect to 4G LTE when I am in certain areas, but the connection isn't a lasting one. It will quickly switch back to 3G. I contacted Verizon Wireless and even took it into a store. They told me that it's the upgrades that they're doing to the network. While the customer service representative said that my model of the RAZR was just outdated and is probably experiencing hardware issues. My solution used to work, but now it's something else. (Hardware or Network related). My suggestion would be to contact Verizon about the issue (revert to stock first; if you need a link as to how to do that, PM me and I will help point you in the right direction.)
EDIT:
I am currently testing a solution. Will report back.

vazersecurity said:

EDIT:
I am currently testing a solution. Will report back.

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Have you tried APN Backup and Restore on CM 11? There are some other flashable fixes as well that I have seen. APN Backup and Restore has worked a few times but I have to do it after every restart.

desdecardo said:

Have you tried APN Backup and Restore on CM 11? There are some other flashable fixes as well that I have seen. APN Backup and Restore has worked a few times but I have to do it after every restart.

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I haven't. BUT I'm running on my stock ROM right now. And it's having trouble connecting. I have to restart just to get 4G. And it lasts for a few seconds and then (in the *#*#4636#*#* testing menu) the signal strength turns all weird (I'll provide the number of dBm later when it comes back). Then goes straight to 3G and no matter how hard I try, it won't switch back to 4G unless I restart. I think it could have something to do with the radio (well obviously it is). But something serious that we can't fix unless we have an unlocked bootloader. If frickin' Motorola would let us unlock the device, then we'd be golden.