Does Toyoko Inn have wifi internet?

I know their lobby has wired terminals for you to use, but do their rooms have wifi access? Or is it lan port only? I'm staying at the shinjuku one by the way.

Every toyoko inn I've stayed at had only wired lan access in the rooms. You may want to bring a small wireless router with you if you need wifi.

Most business hotels including Toyoko Inn have wired LAN in the room. At some places you may need to get the router with English instructions from the front. It is free of charge anywhere I stayed.
Some smaller ryokans have WiFi near the front depending on the owners.

Wireless LAN is available for free in the lobby of every Toyoko Inn. As already mentioned, all Toyoko Inns also offer a wired LAN connection in each room. You just plug the cable into your laptop.

Full details can be found here:

http://www.toyoko-inn.com/eng/info/equipment.html#wlan