FINALLY A FIX FOR 4G DEVICES MICROCELL FAILED SMS!!!

Contributor

FINALLY A FIX FOR 4G DEVICES MICROCELL FAILED SMS!!!

[ Edited ]

OK like most of you who are just about FEDUP with trying to get your microcell device to work properly with your 4G devices.
I found a fix that not only works like a charm...but delivers text FASTER & at 4G speeds via MICROCELL.
I am using a SAMSUNG INFUSE and prior to the below. Nearly 1 out of every 4 text messages failed.

 

First let be known the MICROCELL does not like MOTOROLA cable modems. For some reason it stalls, ATT is aware of this. DOCSIS 3.0 modems is where the problem stems.

THE FIX ---
CONVERT YOUR MICROCELL TO A WIRELESS MICROCELL

NETGEAR UNIVERSAL WIRELESS ADAPTER  WNCE2001

 

When hooked directly into this adapter, it handshakes a CLEAN and proper wifi signal.
NOT only does the MICROCELL connect faster, but it sends and receives faster!
OR you can also use the NETGEAR ADAPETR as a WIFI bridge to hook into another router...
in which then you can hook your MICROCELL into the router. That is how I have it hooked up.

I can asure you this will solve all your problems, your FIVE BARS will stay on ALL the time.
The above spoofs the microcell thinking its communicating with anoher device and not the MOTO MODEM.
in 72 HOURS, i have yet to get ONE drop, or ONE lost SIGNAL. I have an unlimited DATA plan and have already watched various NETFLIX streaming movies and crystal clear. SMS messaging is BLAZING FAST!


ALSO....another secret.
CANT GET A IP ADDRESS CONNECTION....OR AWAITING TOO LONG WHEN RESETTING THE MICROCELL.

Speed it up. Have your MICROCELL connected and do a bunch of speedtests at www.speedtest.net
as this will ignite the MICROCELL to forcefully find an IP address.

This always works for me.

-----------------------------------------------------------------------

HOPE THIS HELPS.



Message 1 of 23 (7,423 Views)
ACE - Master

Re: FINALLY A FIX FOR 4G DEVICES MICROCELL FAILED SMS!!!


jlemma wrote:

You're right to "belabour" the point because it's true... although I had to rearrange some furniture to get to the window (which is ok) and we have a yard full of TALL pinetrees without too much sky showing.  But the good news is that it must be pointed in the right direcion as it seems to be working MUCH better!  Keep up the good work of reminding people to READ directions about all the new "stuff" we're always buying to enhance our techie world!  Thanks!


Glad it worked out for you. Others still aren't as luckySmiley Sad The device, or lack of support for said device, is abysmal at best.

___________________________________________________________

MicroCell Technical Guide by Otto Pylot


I am not an AT&T employee. For additional help, please send a PM to ATTCustomerCare

*The views and opinions expressed on this forum are purely my own. Any product claim, statistic, quote, or other representation about a product or service should be verified with the manufacturer, provider, or party.
Message 16 of 23 (5,645 Views)
Guru

Re: FINALLY A FIX FOR 4G DEVICES MICROCELL FAILED SMS!!!

I'm a little confused as to the problem and fix.

I have an MC connected via Ethernet to my Linksys router.  The Linksys router is connected via Ethernet to my Motorola Docsis 3.0 cable modem.

So how does converting to wireless help anything?  Or is this solution for people who had their Microcell connected DIRECTLY to the Motorola cable modem (in priority mode?)  I can understand that if this was the case adding the wireless in the middle solves some kindof ethernet port issue with the cable modem.

 

Thanks.

 

 

 

Message 17 of 23 (5,616 Views)
Contributor

Re: FINALLY A FIX FOR 4G DEVICES MICROCELL FAILED SMS!!!

I don't see how this is going to fix the problem. The original poster indicated that the Microcell is known to have issues with Motorola cable modems and that connecting the Microcell through a wireless adapter "spoofs" it into thinking it is connecting with a different device. Well, I have an RCA cable modem going to a Linksys WRT54G and the Microcell plugged into that - not a Motorola in sight. I am tempted to swap the Microcell and the router so that the Microcell is connected directly to the cable modem. I'll report back if this helps.

Message 18 of 23 (5,476 Views)

Re: FINALLY A FIX FOR 4G DEVICES MICROCELL FAILED SMS!!!

I am confused now .Smiley Sad Is this fix about moving the uCell closer to a window with better sky view or laundering the uCell data packets through a wifi link in direct cable modem configurations?

 

1- There may be an issue with the uCell MTU being hardset for aDSL (1492) vs. standard ethernet cable (1500) where all packets going out on cable get fragmented. Since the uCell required bandwidth is really low (<1Mb/s) and cable bandwidth is high (>5Mb/s) the MTU setting may be unsignificant for us.

 

 

2- There may be also a UDP TimeOut issue in the direct cable modem connection where the modem does not track the UDP connections well and keep droping UDP-4500 forcing the uCell to re-link with the AT&T servers - The best way to go in this case would be to shy away from direct cable modem connection in "uCell priority mode".

Instead do connect the uCell as follow:   <ISP> - - <Modem> - - <Router> - - <uCell>

 

AT&T CSR like to recommend priority mode so they can rule out all issues with CT private networks by taking it out of the loop. Fortunately regular mom-pop home class firewalls never block outbound traffic, only block unsolicited Inbound traffic to broadcast LAN addresses. As the uCell initiates the traffic to AT&T servers, the Inbound reply packets are always matched to existing connections ie. never a problem.

 

Live and learn,

SF.

Message 19 of 23 (5,430 Views)
ACE - Master

Re: FINALLY A FIX FOR 4G DEVICES MICROCELL FAILED SMS!!!


sanfrenchysco wrote:

I am confused now .Smiley Sad Is this fix about moving the uCell closer to a window with better sky view or laundering the uCell data packets through a wifi link in direct cable modem configurations?

 

 

2- There may be also a UDP TimeOut issue in the direct cable modem connection where the modem does not track the UDP connections well and keep droping UDP-4500 forcing the uCell to re-link with the AT&T servers - The best way to go in this case would be to shy away from direct cable modem connection in "uCell priority mode".

Instead do connect the uCell as follow:   <ISP> - - <Modem> - - <Router> - - <uCell>

 



Moving the MicroCell to within 3 feet of a window with an unobstructed view of the sky is not a "fix", it's in the instuctions. Spoofing the data packets may work for some but as most of us have seen, there are lots of ways to get the MicroCell to work if it doesn't work as expected. There are just too many possibilites (ISPs, modems, routers, etc) for the MicroCell to deal with to work reliably for everyone. Bad design on Cisco/AT&Ts part with inadequate field testing done before launch (not to mention very poor or non-existent customer support).

 

The recommended configuration is: modem -> router -> MicroCell. Again, in the instructions. Priority setup: modem -> MicroCell -> router is for troubleshooting but depending on your home setup, it may be the only way to get it work reliably.

 

FWIW, out setup is: modem -> router -> MicroCell. The MicroCell sits about 18" from a window with an unobstructed view of the sky and the wireless router is about 2' from the MicroCell. I setup port forwarding with a fixed ip address to the MicroCell. The MicroCell is connected via ethernet and all other connections to our home network are wireless. Phones (iPhone3s, Samsungs, etc) all work without any issues even when streaming movies.

___________________________________________________________

MicroCell Technical Guide by Otto Pylot


I am not an AT&T employee. For additional help, please send a PM to ATTCustomerCare

*The views and opinions expressed on this forum are purely my own. Any product claim, statistic, quote, or other representation about a product or service should be verified with the manufacturer, provider, or party.
Message 20 of 23 (5,418 Views)

Re: FINALLY A FIX FOR 4G DEVICES MICROCELL FAILED SMS!!!

I don't think Port Forwarding helps anything at all. If you do the down side is that forwarded ports are stuck going only to the uCell and can not be used by other devices....uCell uses UDP-123 so do other devices for NTP.
Only IPSec needs not to be Disabled in Linksys routers. Others routers don't have this option (always allowed). When this is an issue the uCell just won't connect to AT&T servers or turn on it's "3G-Bars" LED.
SF
Message 21 of 23 (5,517 Views)
ACE - Master

Re: FINALLY A FIX FOR 4G DEVICES MICROCELL FAILED SMS!!!


sanfrenchysco wrote:
I don't think Port Forwarding helps anything at all. If you do the down side is that forwarded ports are stuck going only to the uCell and can not be used by other devices....uCell uses UDP-123 so do other devices for NTP.
Only IPSec needs not to be Disabled in Linksys routers. Others routers don't have this option (always allowed). When this is an issue the uCell just won't connect to AT&T servers or turn on it's "3G-Bars" LED.
SF

I agree that one should not have to do port forwarding at all but that's the only way I could get mine to work in March when I lost service all together after AT&T upgraded the network. I've never bothered to change the router settings (Apple Extreme Base Station) because I haven't had any trouble at all since then (even after a few power failures in the neighborhood). There have been no speed hits on my home network (download/upload), streaming movies (even HD) has been trouble-free, and all calls out or in on the cells have been fine, as well as messaging (pics and/or text). So I'm not about to mess around now.

___________________________________________________________

MicroCell Technical Guide by Otto Pylot


I am not an AT&T employee. For additional help, please send a PM to ATTCustomerCare

*The views and opinions expressed on this forum are purely my own. Any product claim, statistic, quote, or other representation about a product or service should be verified with the manufacturer, provider, or party.
Message 22 of 23 (5,510 Views)
Highlighted

Re: service coverage type

You are right: better safe than sorry. If it works.. don't mess with it.

 

You seem to be blessed with good uCell service - Let me ask you, did you have any 3G receiption inside your house before you installed that uCell? Are you on the outskirt of coverage or in the middle or a blank coverage zone?

 

Txs,

SF.

Message 23 of 23 (5,486 Views)
Share this topic
Announcements

Welcome to the AT&T Community Forums!!! Stop by the Community How-To section for tips on how to get started.

Additional Support