I have 5 computers that need to be have access to a networked printer via USB of the main computer labeled "Office". I have a 4 port modem/router and have connected another router via the Wan port and was able to get the other 2 computers connected. However these 2 computers will not see the printer or other computers since its technically connected to another network. How can i resolve this, I have looked around and from what I have read people are suggesting switches but I wouldn't know which one to get because I know that some switches don't allow internet access. Thoughts?