Want to connect aDI-604UP wired router to a DIR-615 wireless router to use as a printer port wirelessly

Hello Richard.

For this, you have two types of connection
1. LAN_LAN (ethernet to ethernet) -->wireless router is acting as a switch
2. LAN_WAN (ethernet to internet)-->wireless router is acting as a wireless router

in this case, you need the LAN_LAN connection

Physical connection:
plug an ethernet cable from the ethernet port on the wired router and connect the other end of that cabl to the ethernet port on the wireless router

Configuration:
log-on to the setup page of the wireless router, do this while the wired router is turned off.
-open your internet browser, type 192.168.0.1 on the address bar. Then type the username & password for the router ( default admin as the username, password : ).
Under the setup tab, click manual configuration. Then click network settings, change the router ip address to 192.168.0.5 & disable the DHCP server. save the settings. Just personalize the wireless network.

Hope this helps.