Half speed on Hp Laptop vs. full speed on iPhone

[jmk6788]

200 Mps subscription

Arris SBG6950AC2 Gateway, not a rental

200 or more mps on iphone via wifi

90 via ethernet cable on laptop

40 via wifi on 2.4 Ghz connection on same laptop

DHCP enabled on gateway and laptop if that matters

From what i remember, this started a year after having my laptop and this also coincided with the pc not being able to recognize 5 Ghz wifi connections, not sure if just a coincidence or not. It was able to recognize using 802.11 b/g/n which i still have.

Also, i am able and have been able to connect to comcast hotspots without an account, it magically connects without a subscription. 

Please let me know which screenshots to upload to assist and i would be very greatful for your help, have had this issue for a couple years now:/ I've contacted comcast several times and am now reaching out to Arris support. Hp has not been a big help in the past.

Thanks for reading and Cheers!

[EG]

Does the laptop have an NIC / network adapter that supports 10/100/1000 gigabit ethernet speed ? Are you using at least a cat5e ethernet cable ?