RB750Gr2 DHCP client doesn't get IP from WAN port

RouterOS Beginner Basics
1

Hi,

RouterOS v6.43.2

I connected the wire from the cable modem going in the “Internet” port, and the wire to the rest of my LAN going in port 2. Then powered up the CM and when it got a signal powered up the router. After the 2nd beep, I refreshed my client’s IP address. It successfully gave me 192.168.88.254, and I was able to log into 192.168.88.1. Then I noticed that it hadn’t grabbed an IP address from the modem. I checked the firewall, disabled the “drop all packets from WAN” rule and rebooted the router. No joy.

What am I doing wrong? (I read http://wiki.mikrotik.com/wiki/Manual:First_time_startup but it’s pretty skimpy regarding the DHCP client, apparently assuming that it’s “just work”.

Thanks
Webfig Quick set.png

2

After trying it again this evening, it worked.

3

Maybe the lease was reserved for another device.

Our DSL customers get 1 IP with a 45 minute lease, so they either have to contact customer service or wait 45 minutes.