Well, in an effort to get a repeater working, I discovered that another Access Point on my network will operate in repeater mode, and I know that it does support multicast as I have used it to pick up Wake-on-LAN signals set as a multicast signal (an Edimax EW-7206APg). However, whilst is seems to work fine with my laptop, the SB seems to want to connect to it in wireless B mode instead of G, so of course the WPA encryption fails. This is weird behaviour. I’m going to try to switch the repeater to protected (G) mode only tonight to see if it will connect, but I am confused as to why the SB would try mode B first and not recognise that it can use wireless G…
Might try RokuLabs forums to see if they know what’s wrong.
Incidentally, why doesn’t this forum like the word ‘d e t e r m i n e’?