Users disconnecting one by one from the network
I just had a strange thing happening at the office, users were disconnecting one by one from the network, one at each time. For my surprise I checked DHCP leases on pfSense portal and they were all "online" and "active", is this cached somehow? I even restarted pfSense server, for no effect. I have a dual-WAN setup, and failover was tested ok in the past.
The connections were restablished after I unplugged and plugged the LAN cable from the server. Any ideas on what might have caused this, and where can I look upon for diagnostic? This is something that I want to avoid at all costs in the future.