Forum Discussion
Thermal Issues With Home Internet Gateway/Router as a Cause of Dropped/Slow Internet or Wi-Fi Connection
I am a Newbie here and a fairly new T-Mobile Home Internet customer. But my background is electrical engineering and I've been around a while. Like many community members I have experienced frustrating degradation of my internet connectivity after a period of operation, which is temporarily fixed by cycling the Gateway's power (otherwise known as a soft reset, not the paperclip nuclear option). The standard fix per T-Mobile Tech Support is to just perform that reset, which isn't a "fix" at all. Though many others have noted the thermal connection, I feel it's time we get organized on this.
Without going into great detail and after surfing a number of forum threads and through my own direct experience, I have become convinced that the primary cause of the various complaints expressed by posters is heat buildup in the Gateway's enclosure and a subsequent compromise in performance in one or several of the Gateways numerous devices. There could be multiple devices affected, manifesting in different failure modes, but one primary cause - heat.
What I'm asking community members to do is to test this theory by keeping a record of the time from device reset (powering down, then back up) to failure or degradation of either internet or wi-fi connectivity or any other failure mode, and then to apply some means of enhanced airflow through the Gateway's enclosure, whether it be placing a muffin fan on top of the Gateway (blowing up, not down) or simply sitting the Gateway atop an A/C vent in your home with constant airflow and recording any difference in the time between reset and the failure. Repeating this sequence several times and then posting your results here, on this thread, will be most helpful.
If, as I strongly suspect will be the case, a correlation between enhanced airflow and increased "up-time" is documented in one place (here) by multiple forum members, we will have a powerful tool to get T-Mobile's management to fix this problem. Please don't post here unless you have performed the requested action; there are many other threads to use.
What do you say?
Farjohn wrote:
To above:
100% a thermal issue... After sticking a 80mm fan on the side the issues are gone.. Went through 3 routers all having the overheating issue.. And losing signal/having to soft reset after only a few hours of use. They could have charged another $10, put a fan in there and saved 98% of their customers headaches.. Ever since cooling it down it's been a beast. Im rural and this is by far the best internet option for me. And it's not terrible with gaming as long as the signal is good and router is cool.
Farjohn wrote:
What do you say?
Definitely a heat issue. More than a few times I was having issues with slow speeds. Couldnt even run a Google speed test or Jitter it was so slow. So went to the router (did not power it down) and turned on the fan and pointed it right at it and within 5 minutes my speeds go up. You can feel the outside. Its not hot hot but pretty warm. Once it cools down speed goes up.
Tested this method time and time again. Its like "hey my internet is slow. Oh yeah I forgot to turn the fan on."
Hope this helps.
A USB fan will not plug into the back of the Sagemcon, it has to be a c end to plug in.
CookieJ wrote:
A USB fan will not plug into the back of the Sagemcon, it has to be a c end to plug in.
Just buy an adapter from whatever type of USB plug your fan has to a USB-C plug. My fan has a USB-A plug on it, so I use a USB-A to USB-C adapter, and the fan works perfectly.
Two years after the beginning of this thread and the most recent device, delivered to me 2 months ago, still has heating problems I'm convinced. The ambient temperature in my home is often between 30 and 33 Celsius in the summer as there is no A/C. The connection to the nearest cell tower is always 4 bars with a 5G indication. And the internet connectivity fails systematically. Customer service likes to mention cell tower work, but the only correlation to these failures in my home is ambient temperature. My next purchase is a fan. Having designed with COTS and Mil-spec h/w, I understand that a 5x price differential encourages choosing COTS. Sadly, for many consumer grade pieces of equipment such as the t-moblie wifi hotspot this is less than optimal choice. I strongly encourage customer support to recommend fans in the face of the problems reported in this thread. And for t-mobile to spec a wider operating temperature range for this type of equipment. Two years should be long enough.
