Glad it's sorted. You may find that if you set up the other devices around channel 10, they'll all work. The trouble is, there's an overlap between channels - I forget how far they go, but channel 10 and 11 won't coexist, for example.
If you ask your PC to scan for other wireless access points nearby, you'll probably see several
There are many different devices these days all using 2.4GHz (not just WiFi) - it's a wonder sometimes that anything works!