https://community.extremenetworks.com/t5/extremeswitching-exos-switch/traffic-blocked-suddenly/m-p/24927#M2915 OK, I might have found the issue. I had the vSwitch configured correctly, but for the port group I still had "route based on originating port ID" and the other uplink wasn't active. Thu, 20 Jan 2022 18:02:00 GMT nixcraft 2022-01-20T18:02:00Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/traffic-blocked-suddenly/m-p/24926#M2914 I'm doing a fresh installation and I suddenly lost connection to ESXi server behind X620 stack.<BR /><BR />I've done basic configuration only, configured stacking, enabled elrp, created VLANs, added a default route and enabled L3 based sharing for the ESXi ports. On the ESXi side it's set to "route based on IP hash".&nbsp;It was working for a few days without issues but now I lost access to the ESXi server from the other side of the X620 stack.<BR /><BR />I could ping the X620 from the ESXi host, but not the default gateway. From X620 I could ping both the ESXi host and gateway. I didn't see anything related in the switch events so I just rebooted the stack and it started working again.<BR /><BR />What could have caused the blocking? Perhaps there was some event that made the switch to block traffic to/from that sharing group? I'm still running version 22.6.1.4 that came out of the box. Thu, 20 Jan 2022 17:55:00 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/traffic-blocked-suddenly/m-p/24926#M2914 nixcraft 2022-01-20T17:55:00Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/traffic-blocked-suddenly/m-p/24927#M2915 OK, I might have found the issue. I had the vSwitch configured correctly, but for the port group I still had "route based on originating port ID" and the other uplink wasn't active. Thu, 20 Jan 2022 18:02:00 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/traffic-blocked-suddenly/m-p/24927#M2915 nixcraft 2022-01-20T18:02:00Z