Hey @Clive_A Thank you very much for your reply. I can't be 100% sure, but it's weird, that the problem only occures, when i put the switch inbetween. If i just use the lan port in the wall for my...

Hello! My TL-SG105E changes the speed from 1000mbps to 100mbps randomly. I looked already for similar problems here and found some solutions but they didn't help. I changed the cable 3 times already,...