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Forum Discussion
c7800 wifi issue
Alright, I really don't know why this website keeps blocking my discussion post. I've tried to post the same post six times but the system never publishes it. so let's try if this works. I have ...
Wireless AC speed won't get you gigabit speeds.
As well as link speed is different from throughput. the general rule of thumb is that throughput (actual speed) is roughly 55% of what link speed is. With most phones/tablets/pc's only having an 1x1 or 2x2 antenna, they usually have a link speed of 433mbps or 867mbps. Which puts their rough speed at 250-500mbps max under optimal conditions.
Keep in mind those are rough average as some devices are more efficient and some are less. and that's over 5ghz. 2.4ghz is significanly slower than 5ghz.
What issues are you having?
What device are you using?
What speeds are you getting?
Over 5ghz?
Over 2.4ghz?
Are there many wireless signals in the area that can cause interference?
What is your home materials made of? this impacts it as well as many materials can block wifi
Thank you for the response, and here's the details!
Testing device: 2019 16inch Macbook Pro (equipped with 802.11ac + gigabit usb c to ethernet adapter)
Service: Comcast 1 gigabit internet
Connected device: above-mentioned Macbook pro and iPhone 7 plus
What I actually get:
- ethernet connection (850-900Mbps)
- 5G (60-220Mbps)
- 2.4G (20-90Mbps)
Ethernet speeds are pretty much in line with what you'd expect.
same with the 2.4ghz.
5ghz could probably use a little fine tuning but its tough to tell without knowing which wireless card is in it. do you have that info?
Any other 5ghz devices you could test with?
And this is what i've done
- troubleshooted and rebooted
- re-provisioning
- changed 2.4 ghz and 5ghz channels
- changed 2.4ghz and 5ghz max speed limits
What do you mean by wireless card?
I've tested with my iPhone 7 plus and got a similar result
I don't know why the system keep deleting my reply whenever I post something, but I also would like to add that it seems more abnomal compared to the fact that I get better service with lower-tier and older C6300 modem-router that I have owned for 3 years now.
With C6300 I get 150-300Mbps (2.4ghz) and 350-550Mbps(5ghz). So.. it seems very problematic to me that newer and higher-end C7800 with its DOCSIS 3.1 gives less speed than older C6300 with DOCSIS 3.0...