3G Microcell - 3G Red Light Flashing

Contributor

3G Microcell - 3G Red Light Flashing

My GPS, Ethernet, and power light are on with a solid green. My 3G light is a solid red that flashes every three seconds. I use a Netgear router/modem; honestly, I'm not sure what a modem or router looks like but I plugged the microcell's ethernet into the Netgear. I've tried disconnecting then reactivating the microcell. No luck.

 

Any advice on how to troubleshoot this issue would be awesome. I live in the countryside where cell phone reception is severely limited. Thanks!

Message 1 of 121 (60,906 Views)
ACE - Master

Re: 3G Microcell - 3G Red Light Flashing

Agreed. That's why when I port forward I assign the ip address to the MicroCell's MAC address. That's sort of my insurance that if something gets scrambled in the DHCP table the correct ports/address will get forwarded if the MAC address is detected.

___________________________________________________________

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 106 of 121 (6,485 Views)
ACE - Master

Re: 3G Microcell - 3G Red Light Flashing

@rpkamins - using the DMZ is mentioned in the MicroCell Guide posted above as a sticky.

___________________________________________________________

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 107 of 121 (6,480 Views)
Contributor

Finally it works!

Thank you for your support manual. After 3 years, my microcell finally works and works well.  I have a q1000 modem on centurylink. Just needed to put the IP address in the DMZ on router, did a hard reset along with new activation and it works great.  Using an Iphone 5 with latest OS. 

Message 108 of 121 (5,285 Views)
ACE - Master

Re: Finally it works!

You're welcome. I periodically update it so check back every now and then to see what's new.

___________________________________________________________

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 109 of 121 (5,283 Views)
ACE - Professor

Re: Finally it works!

Another happy customer!

___________________________________________________________

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 110 of 121 (5,268 Views)
Contributor

Re: 3G Microcell - 3G Red Light Flashing

Thank you, overclockedpc!!! This worked! I was so frustrated. I have to admit, I was on the verge of giving up and very skeptical. This did the trick!
Message 111 of 121 (4,991 Views)
ACE - Master

Re: 3G Microcell - 3G Red Light Flashing

Witout having to go thru the entire thread, what did overclockpc recommend that resolved your blinking red 3G light? Was it a hard reset (which is in the Tech Guide)?

___________________________________________________________

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 112 of 121 (4,975 Views)
ACE - Professor

Re: 3G Microcell - 3G Red Light Flashing

No, he recommended unplugging the Ethernet cable with the power on, power cycling the Mcell, then plugging the Ethernet cable back in and then power cycling the Mcell again.

___________________________________________________________

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 113 of 121 (4,971 Views)
ACE - Master

Re: 3G Microcell - 3G Red Light Flashing

Really? Bad ethernet port?

___________________________________________________________

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 114 of 121 (4,952 Views)
ACE - Professor

Re: 3G Microcell - 3G Red Light Flashing

I don't think the port was bad.  The procedure might have reset something in the Mcell though....

___________________________________________________________

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 115 of 121 (4,948 Views)
Highlighted
ACE - Master

Re: 3G Microcell - 3G Red Light Flashing

I would've thought a hard reset would have done that but maybe not. If it is the MicroCell I wonder how long it will stay "fixed".

___________________________________________________________

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 116 of 121 (4,946 Views)
Contributor

Re: 3G Microcell - 3G Red Light Flashing

I tried this procedure as well as all the reset attempts with ATT over the past 4 days.  Nothing works.  They sent me a replacement microcell.  Just as it was activating, it received an update (firmware?, software?) and immediately failed with exactly the same error.  The NETWORK indicator (the one with the bars for signal strength) is flashing red and I get a text message sent to my cell phone indicating that the GPS location does not correspond to the device location.

 

The original MC was working fine for almost a year.  Nothing on my end changed until a week ago Saturday when the first location error (described above) was sent to my mobile phone just as the device failed.  Then each reactivation attempt led to the same result. Then I received the replacement MC and went thru the whole process again.  I can't believe how many HOURS I've invested as I laboriously try to march up the ATT ladder to folks who are competetent to fix this.  Now they are blaming my DSL modem as a possible issue.  My position is this: Nothing on my end is failing to work EXCEPT the MC.  My web service to my pc and wireless devices is working fine and I have both wired and wireless connections.  If they changed firmware or software and now the MC doesn't work, they should send me a new MODEM that will work with their mods.

Message 117 of 121 (4,006 Views)
ACE - Master

Re: 3G Microcell - 3G Red Light Flashing

There are some issues with the locational database that pops up from time to time. The flashing red 3G light either indicates a hardware failure or an update that didn't properly reset the MicroCell and now it "thinks" it's broken. Updates are pushed for various reasons and may be specific for a Service Area or a region. If the hard reset didn't work, you have no changes or updates on your end (either hardware or ISP), and a new MicroCell gives the same symptoms, then something is amiss with the locational database in that it can't match your GPS coordinates with your physical address. That's an IT issue and something that rarely can be fixed at the support level.

 

Keep in mind that your internet can be fine but VoIP is something different in that the MicroCell must maintain a secure VPN connection to the mobility servers at all times.

 

This is a holiday weekend so not much will be done until Tuesday. I would send a pm to CustomerCare (link in my sig) detailing your issue, reference any trouble ticket number, your account information, what you have done to correct it, and your location.  I'll follow-up with the Admins on Tuesday.

___________________________________________________________

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 118 of 121 (4,001 Views)
Community Support
Solution
Accepted by ATTMobilityCare (Community Support)
‎04-26-2016 2:15 PM

Re: 3G Microcell - 3G Red Light Flashing

Hello Community!

 

One of the most common topics we see on the forums is regarding the Microcell.  Specifically, how to identify and understand the differences between the LED light indicators on the device as well as troubleshooting steps to resolve any issues.

 

The information contained below is a combination of the great community content, as well as information provided by our Advanced Technical Support team that supports the Microcell every day.

 

MicroCell LED Guide

 

Power LED

  • Off– No power to MicroCell.
  • Solid Green– Microcell has power.
  • Solid Red– MicroCell is either still powering up or is in an error state. Please unplug the MicroCell from power and plug it back in. If the LED remains red, please try an alternate power outlet or alternate power cable. You can also test the ac adapter with a voltmeter. It should read 16VDC ± 0.5. If not, replace the adapter with one of the exact same power rating.

 

Ethernet LED

  • Off– No Ethernet cable connected. Please make sure both sides of the Ethernet cable are firmly attached. One side should be plugged into the Ethernet port on the MicroCell and one side should be plugged into an Ethernet port on the modem or router. Ethernet cables should click when inserted into an Ethernet port. If the LED does not light when both sides are firmly attached, please try an alternate Ethernet cable. The MicroCell has been tested and works with Ethernet cables up to 15 feet long.
  • Solid Green– The Ethernet cable is connected and the MicroCell has been assigned a valid IP address.
  • Flashing Green– The Ethernet cable is connected but the MicroCell has not been assigned a valid IP address. Please power cycle the modem, then router, then MicroCell in that order. If the Ethernet LED continues to flash, please ensure DHCP is enabled on the modem or router. The MicroCell requires DHCP to work.

 

GPS LED

  • Off– No location check is being performed at this time. The MicroCell is either unplugged or is going through activation.
  • Flashing Green– The MicroCell is performing a location check. It is scanning both for GPS satellites and for local cell sites.
  • Solid Green– The MicroCell has completed the location check.

 

Computer LED (only on white model MicroCells)

  • Off– Nothing is plugged into the computer port.
  • Flashing Green– Traffic is passing through the MicroCell.
  • Solid Green– No traffic is passing through the MicroCell.
  • If continued issues occur, it is recommended to not use the Computer Port because of potential issues with the connected computer’s internet settings.

 

Network or 3G LED

  • Off– The MicroCell is not activated. It is either powered off or going through activation.
  • Flashing Green– The MicroCell is not activated. It is going through activation or is experiencing a connectivity issue. Please wait 90 minutes after registration. If the 3G LED continues to flash after 90 minutes, please review the Firewall &Router settings and make sure the modem or router are appropriately configured for use with a MicroCell.
  • Flashing Red– The MicroCell has failed the location check. Please ensure the MicroCell is registered to the correct address. Please power cycle the MicroCell to trigger a new location check. It may also help to relocate the MicroCell to a location with a clear view of the sky. If the MicroCell fails the second location check, please contact AT&T Customer Care.
  • Solid Green– The MicroCell is fully activated and is broadcasting signal.

 

We also have comprehensive Video content to help you navigate any issues you might be having:

 

Note: A failing AC adapter can affect any of the LED lights so it’s always a good idea to check the adapter with a voltmeter, especially if the MicroCell is a few years old or you have experienced numerous or unexpected power outages.

 

You can also find a full list of Microcell support by visiting our Microcell support site

 

Thanks again for all your fantastic questions and support, and please comment below if there is anything we’ve missed!

 

Katie, Community Specialist

Employee Contributor*
*I am an AT&T employee and the postings on this site are my own and don't necessarily represent AT&T's position, strategies or opinions.
Message 119 of 121 (1,646 Views)
ACE - Professor

Re: 3G Microcell - 3G Red Light Flashing

Uhh....this information is already available in Otto's Tech Guide for the Mcell. 

___________________________________________________________

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 120 of 121 (1,620 Views)
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