@M____ Thanks! I will check this out. What I've tried before is to assign the wired computer a IP address outside of the DHCP pool (on his computer). But then I don't get any response from the...

@JG75 I have the exact same issue. It's weird, all the wireless clients connected never gets any issues, but the device that is wired is the one who has issues with the lease. I haven't figure out a...