Fortissimo -
I have different computer hardware but exactly the same problem. Each computer connected just fine to the the internet before FiOS was installed but i can no longer see any other machines on my home network and my kids can longer print from their MacBooks to the printer connected to my computer (which is wired to router)
Computers - various MacBooks and a Dell Studio running Vista (to which the printyer is connected, wired)
Actiontec MI424WR router (version GigE)
Any and all suggestions appreciated