This one is odd to me: with help from friends here and elsewhere I was able to resolve an issue with getting two routers working well with a Wifi Client-Bridge mode on the subtending router. Network looks good, throughput is good, addressing is good. I'm typing this on my daily driver
which is wifi'd to the net, and able to browse the two other live PC's [at the moment], one of which homes the Homegroup - its running 7 Ultimate x64. Able to get into all the shared files & such but only through the "Network", not the Homegroup. When I click on the HOmegroup icon on either machine, I get the message "No other homegroup computers are currently available". the network type is set to "home" on all machines.