Home internet modem keeps powering down and restarting

MzBell wrote:

Same here. Been through 5 towers in two months. Units keep powering off, rebooting. They say I should have full service at my address. Been having the problem since I started T-mobile internet Sept 10th. Was sent the Gray Tower. Needed a replacement by the 15th. Was sent another Gray Tower. Worked for about two weeks. Was sent another Gray Tower, after being down for a week with no Wi-if, got a couple of days out of that one. Went into the store and they gave me black tower replacement, but set up a new number costing me $45. They said  "yea, nothing but problems with those Gray ones."  
 

Went home hopeful but couldn't even get that black one to stay on for more than a few minutes without it rebooting "powering up". Went back to store and they powered it up and it did the same rebooting for them. They said I had to wait for a warranty replacement". So another week without Wi-fi.
 

Picked it up last night, again hopeful. This one keeps powering off and reset back to original wi-fi name, even tho I have successfully changed it and hooked to it with a personal wi-fi name, and then I am locked out and have to reset to factory settings, and it still "powers up" reboots every minute or two.

So after hours of customer support and driving to the store and trying to have staff get me a working unit….I GIVE UP!!! And by the way, I am in Oregon, so this isn't a reigonal issue

Same here. Been through 5 towers in two months. Units keep powering off, rebooting. They say I should have full service at my address. Been having the problem since I started T-mobile internet Sept 10th. Was sent the Gray Tower. Needed a replacement by the 15th. Was sent another Gray Tower. Worked for about two weeks. Was sent another Gray Tower, after being down for a week with no Wi-if, got a couple of days out of that one. Went into the store and they gave me black tower replacement, but set up a new number costing me $45. They said  "yea, nothing but problems with those Gray ones."  
 

Went home hopeful but couldn't even get that black one to stay on for more than a few minutes without it rebooting "powering up". Went back to store and they powered it up and it did the same rebooting for them. They said I had to wait for a warranty replacement". So another week without Wi-fi.
 

Picked it up last night, again hopeful. This one keeps powering off and reset back to original wi-fi name, even tho I have successfully changed it and hooked to it with a personal wi-fi name, and then I am locked out and have to reset to factory settings, and it still "powers up" reboots every minute or two.

So after hours of customer support and driving to the store and trying to have staff get me a working unit….I GIVE UP!!!

Well, I guess time will tell. It sounds like it could have been the gateway itself. I would hope they are recording the serial numbers of such failures to determine if it was a manufacturing run or just a possible one off issue. There have been a number of reports of this nature which makes me think it may have been a possible batch of components in a build run. I suppose the might just ignore it and continue replacing on failure. A common industry practice. 

The power adapter is not the problem in my case. I'm using the power adapter from the gateway that I return which restarted all the time. And the replacement gateway of mine is not restarting (YET).

Same for us. Sagfast gateway worked great for one week, then restarted constantly. I had T-Mobile send me a replacement. Two days with that and so far so good, but I am concerend.

I suggest to contact support or go to a local T-Mobile store and see if they can provide a replacement. Probably the power adapter. 

I’ve had mine less than two weeks and keeps shutting off and powering up. 

I'm in the exact same boat. Moved to the country where T-Mobile is the only provider with 5G about a month ago. Worked pretty dang good at first for how rural we are, but now the gateway keeps rebooting every 5 minutes or so maybe less. At this point it spends more time "powering on" than anything else. I work from home so I'm gonna need a fix asap 😫. Hotspot is only gonna get me so far… 

Azzlyn2006 - I am just speculating but try reseating the SIM card. The SIM card holds significant information about the account and services. If the SIM is not making contact in the unit this could cause issues with the tower connection. If it is shutting down and then powering back up maybe it is a faulty gateway or power adapter. Before you do more or it goes down check notifications on the LED display. The Nokia receives notifications via the LED only, which is not ideal, but if the Arcadyan or Sagemcon are similar in this respect or not I do not know. If there are any notifications with error codes that would be something engineering should be able to work with. I do not believe the SIM connection would have any relationship to the unit rebooting. If there is a T-Mobile store that supports the gateways talk to them and see if you can get a replacement. I do not believe that is a tower issue. If a firmware upgrade was pushed to the gateway it might reboot to install it but now if it has an issue with the firmware or an upgrade went sideways that could possibly lead to it being in a bad state rebooting. Either way there is probably little you can do with it.