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3G microcell "network" light blinking red overnight

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3G microcell "network" light blinking red overnight

I have an older microcell, white model 151 (approximately 5 years old).

 

Every night for the last week or so the microcell as been going offline and when I get up in the morning the "network" light (with the 5 signal-strength bars) is slowly flashing red. The other lights (power, ethernet, and GPS) are still solid green.

 

After power cycling the microcell, all the lights return to normal (solid) and I can make & receive calls without a problem, until the next morning.

 

Is this a sign that the microcell is dying? Is there a problem with my local network configuration that's blocking the Microcell's communication? I did get a new router a few weeks ago, but I don't think the Microcell issues started right away after that. I checked the Microcell network guide and I believe my router is configured correctly (all ports are allowed, etc). When I power cycle the Microcell it seems to link to AT&T just fine.

 

I haven't been able to figure out if the Microcell is going off after X number of hours, or if it happens at the same time every night.

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Message 1 of 20
ACE - Expert
Solution
Accepted by topic author
Accepted by hvjackson
‎09-30-2015 1:39 AM

Re: 3G microcell "network" light blinking red overnight

AT&T does perform maintenance and/or updates late at night every now and then. The MicroCell usually has to reboot after this, especially is there is an update. Sort of like rebooting your computer after an update. If the update didn't install correctly,when the MicroCell attempts to reboot, it can't, and it "thinks" there is a hardware failure which is usually indicated by a blinking red 3G light.

 

I would try a hard reset. That puts the MicroCell back into default status and it has to perform the Initial Activation process all over again, part of which is checking for new updates.

 

Disable the power to the MicroCell. Take a paperclip and press in on the reset button which is located on the back of the MicroCell. Keep holding in the button and restore power. Hold in the button for about 30 seconds and then release it. Let us know if that fixes it.

 

Yea, it is possible that your MicroCell has also died. They don't last forever but let's not give it last rites just yet.

___________________________________________________________

MicroCell Technical Guide by OttoPylot

Cellular Booster Guide by OttoPylot

"Quick Tips: My Microcell Doesn't Work"


I am not an AT&T employee.

*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.
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Message 2 of 20
ACE - Professor

Re: 3G microcell "network" light blinking red overnight

Definitely try Otto's suggestion concerning the hard reset and post back with your results.

___________________________________________________________

MicroCell Technical Guide by Otto Pylot


I am not an AT&T employee.

*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 3 of 20
Tutor

Re: 3G microcell "network" light blinking red overnight

Yesterday I "hard reset" the Microcell as you suggested, and this morning it was still on... so I'm cautiously optimistic. (Of course, since there is no user interface for the device I cannot tell what was the problem or whether it finally updated itself). I will wait a few more days before declaring victory, but I think this is promising. Thanks for your help.

Message 4 of 20
ACE - Professor

Re: 3G microcell "network" light blinking red overnight

Please let us know if after several days your problem has been resolved.  It will help us to provide future assistance to others.

 

 

___________________________________________________________

MicroCell Technical Guide by Otto Pylot


I am not an AT&T employee.

*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 5 of 20
ACE - Expert

Re: 3G microcell "network" light blinking red overnight

AT&T never discloses when updates are pushed or what they are for, and they don't always end up with the flashing red 3G if a reset is needed. You've probably received quite a few updates for better network connectivity, maintenance, etc and never realized it. But yeah, let us know in a few days if you're still up and running solid green.

___________________________________________________________

MicroCell Technical Guide by OttoPylot

Cellular Booster Guide by OttoPylot

"Quick Tips: My Microcell Doesn't Work"


I am not an AT&T employee.

*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 6 of 20

Re: 3G microcell "network" light blinking red overnight

I'm having the same problem. ATT sent me a new microcell, same problem. Flashing red today. I've hard reset. I've done everything I could find to do and it will not stop. I have to unplug and replug everyday in order for it to work.

Message 7 of 20
ACE - Professor

Re: 3G microcell "network" light blinking red overnight

@fatemiafuson 

 

Please keep any future posts in the other thread you started so we can keep things organized and can better track responses. 

___________________________________________________________

MicroCell Technical Guide by Otto Pylot


I am not an AT&T employee.

*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 8 of 20
Tutor

Re: 3G microcell "network" light blinking red overnight

1 week later and the Microcell is still online; I think I'm all set. Thanks for the help!

Message 9 of 20
ACE - Professor

Re: 3G microcell "network" light blinking red overnight

Glad to hear that your Mcell is performing to your satisfaction!  If you have any issues come up, you know where to find us.

___________________________________________________________

MicroCell Technical Guide by Otto Pylot


I am not an AT&T employee.

*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 10 of 20
ACE - Expert

Re: 3G microcell "network" light blinking red overnight

Whoo Hoo! Another satisfied customer.

___________________________________________________________

MicroCell Technical Guide by OttoPylot

Cellular Booster Guide by OttoPylot

"Quick Tips: My Microcell Doesn't Work"


I am not an AT&T employee.

*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 11 of 20
Tutor
Solution
Accepted by Administrator (Administrator)
Accepted by beckyww
‎09-30-2015 1:39 AM

Re: 3G microcell "network" light blinking red overnight

I spent two days working on this issue of the blinking Network (Top 3G signal strength indicator).

I was told that my Arris Cable modem was the problem. Not so.

 

I then went into my router and changed VPN settings from "Disable" to "Enable"

 

PPTP Pass-through:Enable       Disable
L2TP Pass-through:Enable       Disable
IPSEC Pass-through:Enable       Disable

 

After making these changes, everything worked. Do a google search on L2TP or PPTP and notice that they refer to the ports that the Micro-Cell needs to have open, like 443 (provisioning), 4500 (IPsec) etc. Enabling these VPN settings on my router fixed the problem.  I had set them to "Disable" a while ago not realizing that they would impact anything I was using. The MicroCell however needs these ports to be open.

 

Maybe this will work for others with Setup issues.  The ATT tech support said "Arris Cable Modem" was the problem, but in fact it was my router VPN settings.

Message 12 of 20
ACE - Professor

Re: 3G microcell "network" light blinking red overnight

Interesting.  Not all routers have those settings available to be enabled/disabled.  Mine does not.  I am curious though if you tried enabling those settings one at a time to see if just one of them will cure the problem.

___________________________________________________________

MicroCell Technical Guide by Otto Pylot


I am not an AT&T employee.

*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 13 of 20
ACE - Expert

Re: 3G microcell "network" light blinking red overnight

@Jeff92677 - that is very interesting. We have had issues with Arris modems in the past but maybe it was how the router was configured and not necessarily the modem, but we usually do not get a whole lot of detailed information from posters. Routers are becoming more and more sophisticated, and cheaper, so not all of them have the same depth of configuration options. What router do you have btw?

___________________________________________________________

MicroCell Technical Guide by OttoPylot

Cellular Booster Guide by OttoPylot

"Quick Tips: My Microcell Doesn't Work"


I am not an AT&T employee.

*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 14 of 20
Contributor

Re: 3G microcell "network" light blinking red overnight

I am having the exact same problem. Every morning I wake up to "no service" on my iPhone 6+. I did a hard reset on the microcell which did not help. Since my microcell has been in service for about 2 1/2 years (it's one of the white and orange models) I figured maybe it was just starting to quit so I purchased a replacement (same model.) I set it up yesterday and this morning woke up to the red flashing light and no service. Nothing about the rest of my network has changed. I'm using a Motorola cable modem connected to Comcast with an Apple Time Capsule as my wireless router. The microcell is connected to an Apple Airport Express which connects to the Time Capsule wirelessly. This set up has worked fine for the past two and half years. Every now and then the microcell would lose connection but it's been every night for the past two weeks now.
Message 15 of 20
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