Do you have the SM limited on MACs?  Look at Ethernet Port Security on
config > network.

On Tue, Mar 8, 2022 at 12:32 PM Nate Burke <n...@blastcomm.com> wrote:

> I've experienced this issue randomly, and haven't been able to track
> down a cause.  Wondering if anyone else has come across something similar.
>
> Mikrotik DHCP Server.  EPMP1000 GPS AP,  Force 300 SM.
>
> At a random time, one or More Force 300 SM's on the AP will lose the
> ability to hand out a DHCP Address to the client.  The Mikrotik just
> shows 'Offered'
>
> Rebooting or powercycling the SM has no effect.  If the SM Connects to a
> different sector, then DHCP is immediately handed out.  If the AP
> reboots, and the SM reconnects, then DHCP is immediately handed out.  If
> the SM is set for NAT mode, it can get a DHCP Address just fine, but
> switching back to bridge, the Customer router will not get DHCP.
>
> I've experienced this from 4.4.3 all the way up to 4.6.3.  It always
> seems to be an EPMP1000 AP with a Foce300 SM, but does not affect every
> Force300 SM at the same time.
>
> At least now I know when I start having this problem to go reboot the AP.
>
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