Hi - we have a SonicWall Firewall with two interfaces running, no VLAN's configured with 25 Meraki switches. MS220 units serve as our Core switches in our MDF, a MS220 is acting as root. We have 2-3 non Meraki switches (Netgear/TPlink consumer 5-8 ports) still in use and have plans to swap out for MS130P units. We also have 24 Meraki AP's, models MR36, MS44 and MR72 in use. We plan to move to three VLANS in the future and move to the MX95. Still documenting all of the ports and ensuring we have located all of the network devices. So far things are very stable and users are happy. We recently in the last couple weeks have started seeing the message of: 10.120..x.x: Address not used, duplicate address no detected! on some of our printers. We keep very close track of all static IP address assignments and rarely are adding or making changes. In all cases if we take the printer offline and scan/ping the IP we get no response, if we restart the printer or the interface on the printer everything is fine. Sometimes it comes back the next day or a different printer is affected. Seems very random. I think it's an ARP issue, just not really sure where to start first in trying to figure out the root cause of this. DAI is turned off by default in the switches and all ports are all still configured as Trunk ports. Any suggestions would be very much appreciated as I am a novice...
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