Haven't an odd issue with a switch. Its a Cisco Catalyst 3650 g switch with fiber upling. Flat VLAN 1, basic config nothing fancy. We started having a problem last weekend when the uplink gbic to another switch shut down. I replaced the gbic and the link came back however it seems shortly after we started having intermittent problems where a few of the ports started losing communication. The odd thing is that we could ping just a few addresses of servers off the switch but the rest we could not. This has since happened to 2 other ports now. We looked at STP and no ports are being blocked nor do I see any STP errors. If anyone has any thoughts on what this is or what else i can do to troubleshoot please let me know. Thanks.