What is happening with 3G?
fatemiafuson's profile

Tutor

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5 Messages

Tuesday, November 11th, 2014 3:50 PM

Microcell - Flashing Red 3G Light

So I have a Microcell that constantly flashes the 3G light red. I can unplug it and plug it back up in ten seconds and it works fine, until overnight, then it starts flashing red again. ATT sent me a new Microcell, switched everything over last night, worked fine, got up this morning and it's flashing red. Any ideas on what the problem might be? We have cable internet.

ACE - Expert

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23.8K Messages

9 years ago

Typically, a flashing red 3G light indicates a hardware failure. However, that can happen sometimes if an update has been pushed to the MicroCell and it failed to properly reset itself so it "thinks" it's broken. A hard reset often clears it up.

 

I would try the hard reset and see if that works, even though you are having the same issue with two different MicroCell's. Did AT&T send you the new DPH-154 (black model) or is it one of the white models. Are you using the same ac adapter with both MicroCell's?

Tutor

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5 Messages

9 years ago

No, they sent me a white model, same as what I had, same adapter. Only a microcell was in the box.

 

A hard reset works, only over night.

 

I have your whole manual saved and refer to it often. I even do all that stuff before I resort to calling AT&T.

Professor

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2.2K Messages

9 years ago

@ Otto - What's the output of the AC adapter that comes with the 154?  Is it different than the 151 or 153 AC adapter output?  I think you mentioned this at one time but I don't recall for sure.

 

If a hard reset doesn't clear up the problem then we'll need additional information as follows:

 

 

MicroCell™ TroubleShooting Questions:

 

  1. Have you read the Tech Guide first? 3G MicroCell Technical Guide by Otto Pylot

  2. Do you have an active postpaid AT&T mobile account?

  3. Is your MicroCell white or black?

  4. Who is your ISP and is your service ADSL, cable, wireless or satellite?

  5. What are your suscribed download and upload speeds as stated by your ISP?

  6. Have you tested your internet speeds (http://www.speedtest.net/)? Please run the test and post your latency, download and upload speeds.

  7. Have you tested your connection for VoIP quality (http://www.voipqualitytest.com/)? Please run the test and post the results that are listed under the "Advanced" tab.

  8. Are you using the basic connection (modem -> router -> MicroCell) or the alternate connection (modem -> MicroCell -> router/computer)? The alternate connection is not possible with the black (DPH-154) MicroCell as it has no Ethernet output but it can be connected directly to the modem to temporarily test the Microcell without the network connected.

  9. Are all of the cables firmly in place?

  10. Do you have a combined modem/router (gateway) or a separate modem and router? What are the makes and model numbers for your equipment?

  11. Have you met the minimum requirements for router settings as outlined in the Tech Guide?

  12. What other equipment (access points, switches, computers, WiFi components, gaming consoles, etc.) do you have connected to your network?

  13. What does the light pattern look like on the MicroCell (power, ethernet, GPS, and 3G)? Are they all a solid green or is any of them blinking green or red, and if so, which one?

  14. Have you done a hard reset of the MicroCell? See the Tech Guide for instructions.

  15. Have you deactivated and reactivated your Mcell using AT&T's MicroCell website?

  16. Does the ac adapter feel warmer than the top of the MicroCell where the vents are?

ACE - Expert

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23.8K Messages

9 years ago

The ac adapter output on the DPH-131 is 12V, 1.25A. The new DPH-154 is 12V, 1A. The newer MicroCell ac adapter also has a higher efficiency rating.

 

I would try a new ac adapter of the same rating as the current one is for the white MicroCell. If that doesn't work, then we need to look at your internet connection.

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