XiD-P internet access?

I’ve recently had to move my office into my home. I need direct Ethernet access for all of my work needs. I’ve been connecting directly to modem, but just moved my home office to a room where I only have the xid-p “cable box”? The only available port is hdmi. Can I use a Ethernet to hdmi cable to access internet that way? Again, WiFi not strong enough for my needs.