ELE NOK Cellboost SS2FII 4G LITE flashing

The 4G LTE light (bottom light) flashes white at all times the booster is in use, as in sending a txt or on a phone call or even just negotiating with a new phone. Flashing white is expected and normal during use.

If it's flashing orange or other lights are flashing at the same time, that is something else. See @OttoPylot 's cell booster technical guide for details. Here's an excerpt of his chart:

I've noticed one of my boosters will very occasionally become "intermittent" as in someone is literally hitting the mute button on both sides. I'm not sure what causes that, it's only happened on one of my three boosters, one of which is behind the same firewall on the same network served by the same ISP in another building so I'm suspecting it may be the actual booster. But it's very occasional like one call every other month or so. It has been up (it's on a UPS) for over a year, perhaps I should reboot it although I suspect it's rebooted itself a few times when it updates itself.

Hello jbossoletti, we're here to help look into why the 4G LITE indicator is flashing.

Review our device help page for a more personalized solution for your cell booster. For more instructions and information on the LED indicators, review the following.

Let us know if this helps. Reach back out to us if you have any questions or concerns.

Jeff, AT&T Community Specialist 

Thank you all for your comments and help!!!!

Hi jbossoletti, we're happy to hear the information was helpful!

Feel free to reach back out to us if you have any other questions or concerns.

Thank you for contacting the AT&T Community Forums.

Jeff, AT&T Community Specialist

@jbossoletti  Read my Cell Booster Tech Guide, the link is in my sig line for issues and potential fixes.

Your LTE signal on your phone should not be intermittent if the 4G/LTE light is flashing white. That just means that you, or someone, has connected to your Cell Booster and is actively using it.

Please explain your setup in a little more detail.

If only the LTE light is steadily flashing, it only means the "Cell Booster" is in use. If the "SYSTEM" and "LTE" light is flashing and you experience signal dropout, that means that the system is saturated and in 100% utilization.

The home version of the "Cell Booster" only supports up to 8 simultaneous users. So it can be problematic in an apartment or urban environment. Unlike the original 3G Microcell, you cannot set up whitelists or guest #'s and exclude any others. This is my *only* gripe against the home version of the "Cell Booster" 4g LTE box.

The "Cell Booster" is also sensitive to up-close Wi-Fi routers or AP's. Make sure to keep them at least several feet apart. Also, In my own testing - wireless phones that use DECT 6.x operated on a very close frequency to the "Cell Booster" that would make both fight and fail. Keep them separated by half a dozen feet. This includes nearly any DECT 6.x devices: I.E. Ooma, alarm, water, intrusion sensors and alarms and smart home devices and just about any  DECT 6.x intelligent home phones...my Panasonic wireless "landline" phones talk to a 1900MHz base station in addition to the Ooma HD-2 handsets back to the TELO-2 Ooma base. They'll both totally cripple the "Cell Booster" if installed or used within 2' of our friendly, white-glowing AT&T boxes.

EDIT: For greater speillig and grahammercrackerness.