Cable Box Causing Hourly Modem Disconnects

[MSUSpartans]

I have been through it all and have have 3 tech visits and numerous phone calls. After my own trial and error it appears the main cable box is causing my Xfi Arris Modem to disconnect and reset every hour.  I took the cable box back and got a different model (without DVR).  Still having the same issue.  I have reset everything and have tried powering on the modem first then cable box.  The connections look tight and fine.  Tech replaced some connectors and tightend everything.  I even plugged the modem into a different power strip. What in the cable box would send a kill signal back to the modem?  Help!!!

[EG]

What do the modem's signal stats look like ?  Try getting them here http://192.168.100.1 or here http://10.0.0.1

Please post the *Downstream Power Level*, the *Upstream Power Level*, and the *SNR* (Signal to Noise Ratio) numbers.

What is the exact make and model number of the modem ?