Good news guys
I was connected past 3 days up to last night when I had to reboot the router because I lost the connection between my WD media player and my laptop.
After that the TiVo disconnected but was no problem reconnecting with the DHCP reservations.
Bottom line with the troubleshooting I've done I've come to the conclusion the roamio don't play well with certain routers; namely
It don't like my WD Live either, but haven't had as much trouble with it as I have the Tivo.
Which leads me to believe the router don't like releasing and renewing the IP address however, no problems with the wireless on my laptop yet "Knock on wood".
I'm not done troubleshooting this but will continue to update with my findings and one thing I did do last week which might be the reason I stayed connected to the TiVo past 3 days was I MOVED THE ROUTER!!!
Just out of curiosity because I had a cordless phone and the router sitting side my side I moved the router to the other side of the desk away from that phone thinking it could be causing interference.
If I get disconnected again I might just put my WRT5400G router back on the network but if I remember correctly my signal strength was low with it, but it was next to the phone too.
Not done by a long shot