Wi-fi is terribly slow

[PeerMohamed]

I bought 

NETGEAR N300 Wi-Fi DOCSIS 3.0 Cable Modem Router (C3000)

from amazon. The wired speed is well over 200 MBPS but in wi-fi it gives less than 10 MBPS. COmcast suggested to use different wireless channel and I tried everything. Nothing worked. 

[LGarMac12]

I have Netgear N450 and same thing is happening.  Cable company said all is well on their end.  Wifi service is horrible!!  Cannot conenct via cell phones, pandora, apple bpx, etc.  It's annoying.  Cable wireless box/router. Box is new

[drdeviant]

Same Issue I am having, when i went to TWC site it shows Netgear N450 but says modem only like they dont support the builtin wifi. At least this is what i assume, i also noted the picture is greyed out unike the others. It is my belief this router is only good direct connection via ethernet, and my speeds are normal connecting through that method.

TWC probaly has something locked down in the firmware they push.