If the NW1 lamp on the left is off and the NW2 lamp on the right is flashing, the printer is in a connection error status.
Press 
to clear the error, check the following items, and then perform network setup again.
to clear the error, check the following items, and then perform network setup again.Check that the access point (wireless router) is turned on. If it is turned off, restart the access point (wireless router). Consider other users who may be using the network.
Check whether or not the DHCP function for the access point (wireless router) is enabled. If it is disabled, change it to enabled.
Place your printer close to the access point (wireless router).
Check that the access point (wireless router) supports WPS. If it does not support WPS, you cannot establish a network using Push Button Setup (WPS).
If the MAC address filtering function is enabled, register your printer's MAC address to prevent your printer from being filtered.
Check that the Wi-Fi communication mode (IEEE802.11*) set for your access point (wireless router) matches the one supported by your printer. (*Display varies according to your location.)