Connect the optical network terminal (ONT) to the first router using an optical network cable. Connect the second router to the devices that require internet access, such as computers and. Yes, you can connect two routers to one fiber modem, but understanding the 'how' and 'why' is crucial for optimal network performance. This guide clarifies the possibilities, practical methods, and potential pitfalls, ensuring you maximize your home or small office network. ONT s are usually made up of a tamper-proof plastic box that guards all the electronics and connections against sun and rain. Before you begin configuration, it is. I'm planning to use a TP-Link MC220L transceiver to convert the optical signal to ethernet.