MoCA light won't turn on despite instructions & tips

So, I purchased a single GoCoax and like all the reviews and ads said, I plugged it in and expected it work "plug-n-play". Not so lucky. I changed out the splitter, for the different bandwidths, that have been suggested. My gateway/router is through Xfinity and we all know what getting answers from them is like. Needless to say I'm not certain the gateway/router is MoCA activated. In reading different posts about this goCoax adapter, it either needs an activated MoCA gateyway/router or another goCoax adapter in order to work.

Current attempted hookup: Line in ->splitter->(1)gateway/router (2)goCoax->ethernet->laptop

I'm at a loss. I don't necessarily want to purchase another goCoax if it is not necessary. The xfinity gateway/router info is:

• Model Numbers: CGM4331COM and TG4482A

• Friendly Model Name: XB7

• Gigabit Ethernet Ports: 4

• Dual-Band WiFi Option: Yes

• Maximum Data Throughput: 2.5 Gbps

• WPS (WiFi Protected Setup): Yes

• Gateway/ Network Management Tool (http://10.0.0.1): Yes

• Xfinity xFi Eligible: Yes

• Xfinity xFi Advanced Security: Yes

• Xfinity app Activation: Yes

• Two Total Telephone Ports: Yes (separate Alarm Port)

• Battery Backup Capability (Xfinity Voice Only): No

• Link Cordless Phones (CAT-iq 2.0*): Yes

• Home Hotspot Capable: Yes

• Compatible with Xfinity Home : Yes