> 300Mbps plan but only get 50M down and 5M up,
Do you mean 50 megabytes per second, or 50 megabits per second?
I have the same plan, and my Hitron modem gives more than 300 mbps download, and more than 16 mbps upload.
> asked for help as call center discovered irregular signal on my cable, someone came and advise later,
Did they schedule a technician for a site-visit to their "demarcation box" on the outside of your house? From there, they can measure the signal-strength from that box to the telephone pole.
On this forum, another person reported that a technician found a cracked wire on that run to the telephone pole, and that a change in the wind-speed moved the wire, and caused intermittent problems.
> I have 4 port shared on my router, so when split into 4 it's about right with 200M+.
That is not how the "splitting" occurs -- it is not a "static" division, where each port gets 1/4. Rather, it is "dynamic", where one person doing a large download can use up to 100% of the total speed.
> Am considering moving to another carrier.
Remember that the COVID-19 pandemic is still present. Nobody (Shaw, Telus, Bell) currently allow their technicians to enter a customer's home, to do the "last mile" of connecting. So, it could be months before your new provider connects you.
