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Forum Discussion
C7800 Wifi speed is slow
I just bought C7800 several days ago, because I need DOCSIS 3.1 model to support gig speed of Comcast. Then I notice the speed of 5G wifi only have 400Mbits and it should be near 900Mbits to 100...
how are you testing and with what kind of device? based on your description, I suspect your wifi device doesn't support higher speeds. Also keep in mind that the advertised speeds on the package are theoretical and you'll never fully reach them due to various reasons
MacBook Pro 2018, internet interface up to 1.3Gb, test via Speedtest.net and Speedtest.xfinity.com.
iphone X and iPad Pro, test via speedtest application.
Does your C7800 support HT 160 Mhz? If so, turn it on and test again. You can find that setting in Advanced -> Advanced Setup -> Wireless Setting. The option on my R7800 (and I assume the C7800 too) is located at the bottom of that page
No, I don't find "HT 160MHz" in Advanced -> Advanced setting -> Wireless settings page.