I've been having a problem with one port (work laptop 1Gb LAN port) since I switched to the ICX 6610 stack. One 6610 is in the hobby room in the computer stack, the other is out in the garage (one switch would have been MORE THAN ENOUGH ports, but about half my network drops led to the hobby room (stuff I've added) and half to the garage (original drops)) linked by dual 40GB fiber on x/2/1 and x/2/6 stacking ports.
One port from the garage switch on vlan 50 comes back to my hobby room (again, existing cabling in the right place) and goes to a basic, unmanaged Netgear GS108 switch. My work laptop and my personal laptop are connected to it.
The personal laptop (Windows 10 Pro on my AD domain) has worked flawlessly. But the work laptop is being a bit of a pain. It will disconnect the LAN from the network at (what appears to be) random times and then reconnect like nothing happened a few HOURS later. I've seen it happen two or three times in a day. There IS a physical connection during this time, but it gets the default ip address and has no connectivity to anything. But it DOES know there is a cable connected to SOMETHING out there.
Every single time it has happened, I've checked my personal laptop and it is connected just fine. I've checked (and then swapped) the cable with no change. Once, I saw a message on the network adapter show it had failed authentication. Which is a bit strange, as I don't have 802.1x setup on my network.
Using the same network (other than the switches), I never saw this problem in the 1 1/2 years I've had this laptop at my house on my network.
Also, the WiFi (from an Aruba IAP-305 connected to the server rack switch) has remained flawless as well. Same computer, but it IS brought into a different VLAN while connected to WiFi.
Any suggestions on what to look at would be greatly appreciated!
Clint