I'm trying to stream music from a server to my squeezeboxes on a 2.4 GHz guest network but keep getting buffering problems. It appears that the problem is due to channel width being too narrow.  There doesn't appear to be any way to set the channel manually or to set the channel width. Or am I missing something?

I have already set QoS to favor streaming, and set device priority high for the server and music players.