Gigabit internet but upload speed is slow

  • 19 September 2022
  • 5 replies

I recently got the G36 because Xfinity router WiFi was cutting out intermittently. I set it up, and over ethernet my download speed is 620 Mbps.  which isn’t the best but I’m okay with that. However, my upload speed is only 5 Mbps, when I should be getting between 30 - 40 Mbps.

Is there anything that I can do to improve my upload speed?


5 replies

Userlevel 2

If you log into the G36, you should be able to check your cable connections info. It should show your upstream/downstream info to check the line. pull that up and take a screensnip of it and post it back here. 


Here are the upstream and downstream info that I was able to find on the G36 Web Manager.

Userlevel 2

Does it have an errors/uncorrectable section?



Here are the Error codes

Userlevel 2

You could try seeing if your ISP would reprovision it. Maybe they sent the wrong provisioning for your speed tier.