So I just opened a case with Meraki but thought I would post here as well. Here is what I sent in for the case...
We recently started having an issue at our corporate office when users move from one location to another they have network connectivity problems. We have a stack of MS250's for our access switches connected to a stack of Cisco Catalyst 3650 for our core switches that are acting as the default gateway for the access vlan. When a computer is connected to one port on the Meraki stack and then moves to another port on the Meraki stack the computer is no longer able to reach the default gateway (the Catalyst stack). The Meraki switch sees the computer with the proper mac address on the new switch port but when I do a packet capture the PC is repeatedly sending out an ARP request for the default gateway but never receives the response back to it. After a period of time (I haven't been able to figure out the precise time frame) the PC can connect to any switch port on the Meraki stack and work properly. So it seems like something is clearing out of a table somewhere in the Meraki stack that allows the connection to start working properly. I also can move from a port on the Meraki switch to a port on the catalyst in the access vlan and have no issues. The issue only seems to happen when moving between ports on the Meraki stack.
I feel bad opening a case when I don't feel 100% confident the issue is in the Meraki switches but my troubleshooting steps seem to point that the break down is in the MS250 stack.
Anyone else seen anything like this or have any troubleshooting advice you would take in a scenario like that?
One of those things that isn't THAT big of a deal but of course it would happen to the CEO when he is moving his laptop from his office to the board room...
