Something on your LAN is sending data to your hub, and what you're seeing its IP address (the 192.x.x.x address) as well as the DNI the hub is trying to match it with (after the "for..."), which are the MAC and IP address in decimal and hex. Since you have the IP address of the sending device, this should be easy for you to figure out. The solution is to stop that device from sending data to your hub.
Hub Mesh is probably not related to this; you shouldn't see logs on the "meshed to" hub unless there is a matching device (in which case logs also show up on that hub), which this error is implying you don't have. It could be some local integration you tried to set up sending data to your hub on port 39501. If you recall trying to configure any LAN integrations lately, those would be a good guess.
192.168.1.151 is the C-5. So I thought it was some device on the c-5. The only thing I’ve done as of lately was remove a few z wave switches but made sure to remove them properly.
Interesting. When you say "meshed with," are you talking about the Hub Mesh feature? Or did you use another integration like Link to Hub (I wouldn't recommend this anymore) or HubConnect? I'd expect different errors for those, but I'm not sure I'd expect this one for HubConnect, either. I suppose make sure both are running the same platform version (2.3.1.133 is the latest) and are set to the same protocol (TCP or UDP) for Hub Mesh.
Hub mesh doesn't do this. It's using a separate set of ports that don't overlap with anything else. Hard to say what it is other than "some app or driver from the other hub".
Thanks for the suggestions, appears that it may have had to do with hub link. I’m not sure why I had it enabled but removed it on the c-5 and have not since seen this error on the c-7 since removing it.