Anton L.Z. wrote As you said, your PC has a permanent address 192.168.3.3 so it won't show on DHCP list. I am thinking maybe it's DNS issue or MTU size? Still don't know why it can be fixed by...

Model: TL-WDR4300 Hardware Version: v1 Firmware Version: 3.14.3 Build 150518 Rel.70901n ISP: Ziggo 150/15 (NL) Dear all, I'm using a TL-WDR4300 on the first floor as a secondary router in the...