I just completed this and had to change 15 devices. To change your Roku password, go to the Account information section of your Roku account, enter a new password, confirm it, and then select 'Save changes. I wish there were an easier way, but that's the only way. Roku ought to make it easier. As to the network, go to your network IP. It will be something like 192.168.0.1, but you should have it somewhere. If not, download a utility on your phone and scan your network, and you'll get it. For the network password, go to that IP, and you will get your router or gateway. There will be a place for your SSID and password. Make sure your SSID is right and change your password. Be sure and save it, and be sure and keep a record of it somewhere safe. Hope that helps.
