Add note about legacy 802.11b rates

[raxod502]

Description

Found this on https://gbatemp.net/threads/wii-wont-connect-to-wifi.557433/#post-8936892 and changing my OpenWrt 2.4Ghz channel to enable legacy 802.11b rates fixed my Wii being unable to connect to LAN exactly as described in the thread.

[playerjmr]

The wii also supports 802.11g rates https://en-americas-support.nintendo.com/app/answers/detail/a_id/15433/~/additional-troubleshooting-for-your-internet-connection

[raxod502]

Hmmm, well, without enabling "allow legacy 802.11b rates" here, my Wii was unable to connect to my wifi network:

Does this perhaps imply that 802.11g is not broadcast by OpenWrt by default, and that an alternative solution would have been to change the "operating frequency" dropdown here from "N" to the other option which is "Legacy" (maybe that's what they call G)?

[playerjmr]

Does this perhaps imply that 802.11g is not broadcast by OpenWrt by default, and that an alternative solution would have been to change the "operating frequency" dropdown here from "N" to the other option which is "Legacy" (maybe that's what they call G)?

thats a weird configuration, but presumably yes. i actually havent messed with openwrt yet much

[raxod502]

Updated the wording. How does it look now?