Blocked local MAC address

RouterOS General
1

Two POS connected to the RB750G v6.29.1 can’t connect to the bank and I cannot ping them from router terminal. Statistics on the interface shows just Tx traffic, the Rx traffic is zero. But the two POS you can ping from PCs on local subnet.
Tried different UTP cables and MT ports but nothing changed.

The third POS works.

Attached is the screenshot of the 3 POS. The third works. A frend of mine said that this could be because of the MAC address.
Selection_009.png

2

You can’t ping them from the router?

Is there any kind of bridge in that router? can you post a /export?

3

No, I can’t ping them from the router.
There is no bridge. Port1 does PPPoE to the modem, port2 is master, port3-5 are slaves.

4

But the POS get DHCP fine? weird… I’d check netmasks

5

Yes it gets DHCP. Netmask is 24. I really think that MT “hates” some MAC address.

6

Can you mac-ping them from the router?