Issue with getting IP over LAN

RouterOS Beginner Basics
7

You shouldn't need a static route at all, if you run in terminal
/ip route print
you should see two routes, one (the static one you added manually) marked with S (or AS) and one marked as DAC (this is created automatically by the assigned IP address for 192.168.70.0/24), this latter, being Dynamic, will have distance 0.

Only as a test:

  1. take ether3 out of the bridge
  2. add a DHCP client on ether3

Remove the cable (coming from the ASUS) from ether1 and connect it to ether3.

Check ip addresses with your PC connected to ether2, ether3 should get an address from the DHCP of the ASUS.

If this works:

  1. remove the manually set IP address from bridge
  2. re-add the ether3 to the bridge
  3. remove the DHCP client from ether3
  4. add a DHCP client to the bridge

You should have now a DHCP address given to the bridge.

To do these changes use Winbox connected via MAC (this way changes in IP addresses will be irrelevant), see here: