I have a small and inexpensive ethernet switch which is giving me some headache. For some reason some devices only work when I plug them into specific ports. The ports are not broken, as other devices work on the same ports. Also, if I just take the cable from one of the ports that doesn't work and plug it into another port, it works fine.
When I say the devices don't work, they actually show activity on the LEDs such as LINK and ACT, but I can't ping them, but I have no explanation. I also tried to restart the switch, computer, flush ARP cache etc.
I read that some switches have automatic MAC address aging and learning. Could that be related?
They reason why I am asking is because soon I will undergo a massive operation where we have to connect hundreds of these devices to the network, and we plan to buy 48 port switches for this purpose. If they start playing strange games like this, I am absolutely unsure what is going on.
Could this be a problem with the switch, is this expected, or do you believe it is rather a computer problem or router problem (the switch is connected to a router), but I am not using a gateway on these devices or the computer (and as said, as soon as I plugin the devices on a different port, they start working).