Slow wifi zorin os / Wifi lento en zorin s

I had problems with the speed of my Wifi as I am a new probe investigating a thousand places, I would have to have a decent speed to navigate but I only got less than 1mb, I tried to reinstall drivers and disable ipv6, point to nearby DNS and other options without success, The connection is made at 2.4 due to hardware, I tried it from my office network and there I got 15mb is something decent to navigate, when I got home I tried a different network and connected to another 2.4 network different from the one I had with speed increase to 16mb
conclusion: I still do not know what prevented the correct connection to my first network to get less than 1mb of speed, firewall perhaps?