I am using a PA220 and x440 switches together on a simple network. for some reason out of the blue the firewall crashes when connected to the switch. I have tested the PA where I pulled it out of the network and connected it to a Cisco 2960 and all is good. as soon as I connect it back to the X440 The firewall crashes. looking back at the switches I find that although the lights are blinking none are actually communicating. I’ve gathered all the equipment to bring back to my home office for further troubleshooting but I’m wondering if anyone else has experienced this
