Hello!
Setup
I have a 300mb fiber connection at my house. My ISP provided me with a Calix 844G GigaCenter, which includes wifi and routing (lets call this my gateway).
I prefer OpenWRT/LEDE, so my WRT1200ac (running LEDE 17.01.4) is plugged into the 844G and my home network runs through that (lets call this my router).
My router's 5ghz seems to work ok! Up and down are routinely between 100 and 225 mb.
My router's 2.4ghz is ok. It can be very slow, but down is usually 20-30mb and up is 40-50mb.
Here's my /etc/config/wireless
config wifi-device 'radio0'
option type 'mac80211'
option hwmode '11a'
option path 'soc/soc:pcie-controller/pci0000:00/0000:00:01.0/0000:01:00.0'
option htmode 'VHT80'
option country 'US'
option channel '36'
config wifi-iface 'default_radio0'
option device 'radio0'
option mode 'ap'
option macaddr 'c2:56:27:6b:a9:f9'
option ssid 'Pandora_5Ghz'
option encryption 'psk2+ccmp'
option key XXX
option network 'lan'
config wifi-device 'radio1'
option type 'mac80211'
option hwmode '11g'
option path 'soc/soc:pcie-controller/pci0000:00/0000:00:02.0/0000:02:00.0'
option country 'US'
option network 'lan'
config wifi-device 'radio1'
option type 'mac80211'
option hwmode '11g'
option path 'soc/soc:pcie-controller/pci0000:00/0000:00:02.0/0000:02:00.0'
option country 'US'
option txpower '30'
option distance '12'
option htmode 'HT20'
option channel '1'
config wifi-iface 'default_radio1'
option device 'radio1'
option mode 'ap'
option macaddr 'c2:56:27:6b:a9:f8'
option ssid 'Pandora'
option encryption 'psk2'
option key XXX
option network 'lan'
Here's my problem.
I'm running my guest wifi through my gateway (2.4 ghz only). When I connect to my guest wifi, I get dramatically better throughput than my router (both down and up are 40-70).
How can I improve the 2.4 ghz throughput on my router?
I realize all traffic going through my router will have a little extra overhead, because my gateway has to pass it on, but that shouldn't incur a 50% penalty.
Channel interference probably isn't a factor. I live on a dead-end suburban street. In fact, my router gets better throughput when it is set to channel 1, even though that is slightly more crowded than channel 6. My guest wifi is on channel 11.
Many thanks!