OK, I changed out three sg500 52 port poe switches (stacked) with three sg500x 48 port (stacked) switches and, unless it's from the same subnet, I can't ping, connect to gui or monitor SNMP with them. The old switches were L2 only and, except for that, the IP and system config were basically the same. The 500x's are L2/L3. Do I need to add IPv4 routes to remote monitor and manage them?
I can provide configs if requested but thought I would start with this first to see if it was just something stupidly obvious that I'm overlooking.
Be gentle, thanks!
Edit: the new ones are POE as well.
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