I guess I am confused - will Ooma work only when I am actually booting up my computer/using the internet - what happens when my computer goes to sleep? I did not think it mattered since Ooma is not plugged into my computer itself but the modem/router. I do not have a landline phone so there is not problem with the "plugged into the wall" topics that I have seen.
I'd like to call technical, but our cell phone vortex at home does not allow us to do so and Ooma does not work. Any advice would be great.
Start by shutting down your computer and your cable modem. Physically disconnect the modem from the incoming internet connection and unplug the power line.
Then disconnect any router or wireless router. Reconnect your modem as if you didn't even own a computer, then connect ooma and a phone directly to the ooma device. Leave the computer and router out of the mix to start. Ooma SHOULD work at this point, after a couple of minutes of startup time. (If it doesn't, there's probably a problem with the ooma device or your cable modem.) If it does, then start adding other things back into the mix.. start with a pc with an ethernet cable coming straight off the ooma device. (IOW, leave any router out of this mix to start with.) If the PC AND the ooma device work together, then try adding the router back into the circle. If by adding one thing into the linked devices you find trouble, it might point to an address conflict or some other incompatibility.