I have an older series 2 Tivo DVR and I can not connect via the telephone system to get cable's channel lineup. I'm assuming the issue is a VOIP (OBI/Google Voice) telephone service I have now. Regardless, I need a Wi Fi adaptor to access my router that is also serving my Tivo Premier. My question: Can I get a generic or different brand of Wi Fi adaptor to use with my older Tivo Series 2? If yes; Is there any specific type required? I have a Cisco Linksys Series Router E2000 N router. I don't know if any compatibility issues exist being that the Tivo is a series 2. What would I need to know when purchasing the adaptor?