Have the Arris TG1682G router. Am having issues with Sonos sound system constantly dropping audio. Have tried resetting, unplugging all devices, yada-yada, but nothing seems to stop the issue, so would like to try assigning static IP's to Sonos equipment. Router access at 10.0.0.1 will not accept default password (admin/password), and I'm stumped. I never set a user name and password when the router was installed last year, and have tried everyone combo I can think of (after googling the question), but to no avail. But I'm also asking, that even if I could get access, is it possible to assign static IP's with this router? If not, any suggestions?