Hello i have the same problem (only on one port) I'm trying to switch from Port speed AUTO to a fixed speed Is only a test Best regards Christian   LOG   Sep 29 11:42:52   Port STP change Port 24 disabled→designated Sep 29 11:42:52   Port status change port: 24, old: down, new: 1Gfdx Sep 29 11:42:48   Port STP change Port 24 designated→disabled Sep 29 11:42:48   Port status change port: 24, old: 1Gfdx, new: down Sep 29 11:20:43   Port STP change Port 24 disabled→designated Sep 29 11:20:43   Port status change port: 24, old: down, new: 1Gfdx Sep 29 11:19:33   Port STP change Port 24 designated→disabled Sep 29 11:19:33   Port status change port: 24, old: 1Gfdx, new: down Sep 27 23:24:40   Port STP change Port 24 disabled→designated Sep 27 23:24:40   Port status change port: 24, old: down, new: 1Gfdx Sep 27 23:23:29   Port STP change Port 24 designated→disabled Sep 27 23:23:29   Port status change port: 24, old: 1Gfdx, new: down   ... View more