Covering the basics here

I am at work so and my connection is down so I can’t even get some pertinent information here for this post but I guess I am at a loss for troubleshooting here so I’m going to begin the post now, at the very least. I just got off the phone with the cable modem provider for my internet and here’s the problem:

When I reboot the cable modem my MikroTik router leases a 192.168.100.10 address from the cable modem and while it has it (i’m watching this via GUI) I can pull up the internal info/stats page on the cable modem (192.168.100.1) and after about 10 seconds the lease gets expired and the MikroTik router tosses an error to the terminal saying the lease on the DHCP-client has expired. I can repeat this process as often as I reboot the cable modem.

So my question is would this be a problem with the MikroTik or is there some kind of internal problem with the cable modem? I don’t understand why the private IP lease from the cable modem would expire so quickly like that.

p.s. everything has been rebooted, multiple times.

I’d blame the cable modem - it’s probably assigning an IP address whilst it connects properly to the ISP at which point the ISP should assign an IP address via dhcp or pppoe direct to your mikrotik - assuming the cable modem is a layer 2 bridge when it’s fully booted and connected up.