Epson WorkForce 520 series - Manual (Page 16)

16 Wireless Network Setup
6. When you see this screen, select The printer is already on my wireless
network , then click Next .
7. Wait while the software is installed.
8. Mac OS X 10.6: Skip to step 13 on page 17.
9. When you see the Firewall Warning screen, click Next .
Note:
If you see a firewall alert message, click Unblock or Allow to let EpsonNet Setup
continue. Do not select Ask Me Later, Keep Blocking, or Block.