Amplifier / Cable Modem Compatibility List Cable Modems and Wiring Issues| The following Amps are KNOWN to work with cable modems: Electroline EDA2100 (Thanks, bouchecl) Electroline EDA2400 (Thanks, bmusgrove) (I'm assuming that the above are 1 and 4 port models, respectively) Motorola Signal Booster Drop Amp - Model 484095-001-00 (Thanks, Cory Cooper) Scientific Atlanta Surge-Gap(r) Drop (Thanks, Me) Pico Macom CDA-1A (Thanks, Charter tipster. currently $40 shipped). The following Amps DO NOT work with cable modems: The inline amplifier sold at Radio Shack prevents 2-way communication. (Thanks, Chakthi) I do not have access to many amps. If you have an amp installed in your home, please provide me with the information for it and whether it works or not! by Raydr | ||