No, TP-Link does not directly provide fiber optic internet service to homes or businesses. It's not always as simple as plugging a new router directly into the wall. Often, your Internet Service Provider ISP will supply a. This article will offer an in-depth configuration guide on how to use SFP+ ports. Have I irreversibly screwed up with my purchase or can I somehow still salvage this? (Such as connecting one router to the other?) I appreciate any help. The provided modemrouter has a female optical port (I guess it's called SFP or ONI, I still have to understand that) and all the products I am seeing here have an ethernet WAN port.