Linksys WRT160N Wireless-N Broadband Router

Are you aware that these are the actual steps?

  1. Log into wireless router
  2. Change IP address to a static one on your existing network
  3. Turn off DHCP server
  4. Set up wireless parameters however you want to
  5. Plug existing network into LAN port
  6. Done. Everyone plugging into other LAN ports or connecting

This has NOTHING to do with Mikrotik networks. If you need help configuring a Linksys router please ask in Linksys forums.