I could not activate my Microcell (black model)

Question

Plugged it in, ethernet port too. I have an Airport Extreme and Netgear Prosafe 8 port gigabit switch. Tried plugging into both. The tech guy who set up my system said to plug into the Netgear. Called AT&T tech support, we cked my speed and the speed is good. Device is near the window. Power light comes on but nothing else. Last tech said she heard there might be a conflict with Airport Extreme and suggested I 'Google it.' Tried that, but not easy for me to read and understand the stream of comments. Please help.

OttoPylot · Answer

There is no conflict with the Airport Extreme. My MicroCell is connected, via ethernet with no switch in-between, directly to my Airport Extreme Base Station, and is has been for years. The older white MicroCell worked just fine and the new DPH-154 (black) was up and running in about 20 minutes after being taken out of the box. Below is some basic questions that we'd like you to answer first before we dive into your problem.

MicroCell™ TroubleShooting Questions:

Have you read the Tech Guide first? 3G MicroCell Technical Guide by Otto Pylot
Do you have an active postpaid AT&T mobile account?
Is your MicroCell white or black?
Who is your ISP and is your service ADSL, cable, wireless or satellite?
What are your suscribed download and upload speeds as stated by your ISP?
Have you tested your internet speeds ( http://www.speedtest.net/)? Please run the test and post your latency, download and upload speeds.
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.
Are you using the basic connection (modem -> router -> MicroCell) or the alternate connection (modem -> MicroCell -> router)? The alternate connection is not possible with the black (DPH-154) MicroCell.
Are all of the cables firmly in place?
Do you have a combined modem/router (gateway) or a separate modem and router? What are the makes and model numbers for your equipment?
Have you met the minimum requirements for router settings as outlined in the Tech Guide?
What other equipment (access points, switches, computers, WiFi components, gaming consoles, etc.) do you have connected to your network?
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?
Have you done a hard reset of the MicroCell? See the Tech Guide for instructions.
Have you deactivated and reactivated your Mcell using AT&T's MicroCell website?
Does the ac adapter feel warmer than the top of the MicroCell where the vents are?