RT-AC56U slow wireless connection


I have a slow wireless connection after one meter from Access Point with OpenWRT 18.06.2 (Asus RT-AC56U).

Here is my configuration:

config wifi-device 'radio0'
	option type 'mac80211'
	option channel '11'
	option hwmode '11g'
	option path '18000000.axi/bcma0:7/pci0000:00/0000:00:00.0/0000:01:00.0/bcma1:1'
	option txpower '20'
	option legacy_rates '1'
	option country 'DE'

config wifi-iface 'default_radio0'
	option device 'radio0'
	option network 'lan'
	option mode 'ap'
	option ssid 'Test'
	option encryption 'psk2'
	option key '123456789'

What do I have to change?



The Asus RT-AC56U is just a very bad choice for running OpenWrt, as it ships with two Broadcom softmac wireless cards, which are barely supported at all (b43 doesn't support HT/ VHT modes, which means it's limited to 54 MBit/s). This is not going to improve in the future, as Broadcom has always been rather hostile towards opensource driver development for their softmac designs.

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Can I connect an external AP to Asus RT-AC56U, or is it a bad idea?

Which external AC is good for OpenWRT/Asus RT-AC56U?

Yes, you can connect external APs to your Asus RT-AC56U, however any decent AP (depending on your needs, ipq40xx, ipq806x, mvebu) worth its salt could take over the routing tasks of the Asus RT-AC56U as well, making it optional (replacing it alltogether).