I have one mikrotik as dhcp server,
other mikrotik routers are connected with own ip as ap bridge in different rooms,
everything works fine, ut sometimes, after long time working those other mikrotik cant access updates.
Clients connected to them, pcs, laptops mobile phones can normally access internet,
but if loging to it it cant download or check for updates for mikrotik server software update firmware.
Now, if i enter into main mikrtoik router which acts as dhcp server and has main internet cable,
into arp section and remove arp entry for that other mikrotik ap, - evertyhing start working, can normally upgrade software. why?
Are the other Mikrotik AP’s using DHCP client on their bridge, or have you set a static IP address and a static default route, and a static DNS server on them ?
Changing MAC addresses in the ARP table should normally not be a problem, unless set static/fixed.
If the “Admin. MAC address” is not fixed on the bridge, then the MAC address of the first active interface is used. (a WLAN interface goes inactive if no clients are connected).
So the MAC address may change. Normally no problem as the ARP table will be updated … unless some (static?) setting prohibits this update.
The DHCP lease table, and the ARP IP-MAC table are 2 different things, updated by different mechanisms.
So if you delete an IP-MAC entry in the ARP table, do you get a different MAC address for that IP ?.