Forum Discussion

fjleon's avatar
fjleon
Transmission Trainee
Hace 3 años

Speedtests on Sagemcom using wired ethernet speeds are crippled

I just signed up 5 days ago and got the sagemcom gateway. Noticed I can get 350 Mbps using the sage's wifi but if i do the same speedtest a minute later using wired (ethernet) i get around 40 Mbps.

This makes no sense as wired should always be faster and more reliable than any radio wave signal.

I’m a network engineer and i can transfer 2 files between my 2 computers with the same cables and network adapters at 100 MB/s (1 Gbps) so i'm 100% sure it’s an issue with the gateway

Adding to that, if I repeat  the same file transfer test when connected to wifi, the file transfer is done at 40-50 Mbps as well. I have my tplink mesh connected to one of the ports, so even if i use that signal to do a speed test (which is a wifi 5 mesh, meaning it's capped at 866 Mbps) i get much worse results.

I have seen reported this issue many times over the unofficial tmobile isp reddit specifically when using the sagemcom https://www.reddit.com/r/tmobileisp/comments/ybm7yl/sagecom_to_router_speeds_my_wireless_router_speed/

I recorded a video with speedtests done with wifi and wired and got tforce to create ticket 72045919 . Looking forward to a resolution of this, I'm just hoping it's a bug that can be patched via firmware and not a hardware defect.

  • fjleon's avatar
    fjleon
    Transmission Trainee

    they just released a new firmware but it’s unknown what fixes were included and we don't know exactly when it's actually going to hit ours, as it could take weeks

  • Add me to the list.  I've had the Sagemcom since Jan 2, 2023.  I can get upto 400 Mbps on wifi6 thru the gateway but will max out at 170 Mbps thru the ethernet port.  

     

    Every time I contact support or T-force they say it's not a known problem.  How do I get added to the support ticket if possible?

     

     

  • NickM74's avatar
    NickM74
    Newbie Caller

    I am getting the same issue.  I used Speedtest.net.   I connected my laptop directly to the tower with an ethernet cable.  Speed averaged 35-45mps.   Disconnected the ethernet and connected to wifi.  Speeds average over 200mps.   We've had T-Mobile internet since Dec 2022.  These results are consistent over the 5-10 times I've tried it.

    Not sure what’s going on and don’t have time to wait 30 minutes on hold to talk to their tech support.

  • Lars_T's avatar
    Lars_T
    Newbie Caller

    I just got a Sagecom FAST56688W gateway and noticed the same thing as you.  When connected with an ethernet connection I get a significantly lower speedtest result than when connected wirerlessly.  The problem seems to be with the gateway but i havnt fully diagnosed the problem yet.