Problem with service Metro Ethernet

I have problem with configuration Mikrotik with service MetroEtheret. I received from my provider addresses:
IP WAN: 83.xxx.xxx.158
Mask WAN: 255.xxx.xxx.252
Gateway WAN: 83.xxx.xxx.157

LAN IP: 217.xxx.xxx.240/30



I set on Port1 - IP WAN, Mask WAN, Gateway WAN. I sent ping to gateway and I received answer, but when sent ping to world i have timeout.

How to correct configure Mikrotik? What I did wrong? Do you have any ideas or tutorial how to configure this service?

/ip address add address=83.xxx.xxx.158/30 interface=ether1
/ip route add gateway=83.xxx.xxx.157

Hello
Thanks for you answer,
I excuted your command but still don’t work.
In routes I have this route but it’s only with letter S(static) don’t A(active) how to activated this route?

Post your export here:

export file=anynameyouwant hide-sensitive=yes