The WAN port of the wireless router must be connected to the optical modem in the living room, and c

Two situations: 1. The signal of other wireless routes can be received in the living room. >>>More

Use a three-antenna high-power router, or your wireless network card is not good, try replacing one.

Is that little box a separator? If so, move the cat and the invalid router directly to the living room, plug the network cable into the hole of the MODEM, and the rest can be changed. If it's not a separator, it's good to buy a separator, unplug the line plugged into the phone in the living room and plug it into the inlet port of the separator, the PHONE hole at the outlet port to answer the phone, and the MODEM hole to pick up the cat is good, it's very simple.

It should be the cause of the wall, which causes the signal to decay badly, so the signal received by your mobile phone is not good. It is recommended that you change to a router with three antennas, so that the router signal can be stronger, it is best to put a can on the antenna of the router, cut the direction to your room, so that it belongs to the directional amplification signal, and then see how the signal is. Below is the address.

Yes, but your desktop needs a wireless card.