Hi @elizabethh79418

As there is no mention of any wireless options double check that it is an MFC-J5855DW as per the product info label on the printer.

This video shows what you should be seeing in the Network settings and it is confirmed by what this and this (click on WiFi setup) show in the user manual.

Last throw of the dice perhaps.

Try to update the firmware and see if that works. You may have to connect via Ethernet to do this.

If no good, hopefully it hasn't been a full year since purchase. If not, get it replaced under warranty as it it faulty as far as wireless capability goes.

If out of warranty, it may be faulty wireless card in the printer.