C7100V Ethernet Connectivity

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packer22 wrote:

I have a C7100V and my internet speed when checked through Xfinity is about 200 mbps. 

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If it is a device issue, you might like to check in the appropriate section for your modem/router.

While many questions about routers are generic and could be answered anywhere, some things need specialist knowledge.

You might get more help, and find earlier questions and answers specific to your device, in the appropriate section for your hardware. That's probably here:

Cable Modems & Routers

You might like to search there for messages related to your problem.