Yes, the link speed between powerline adapters is decided by the slower one. For your case, you can plug one AV1200 to your main router, so at least the two AV1200 can reach the link speed AV1200.

Will give it try. TP-link also ask me to try another PCI-E slot. Maybe it can help. You guys can email support@tp-link.com, provide them more information, perhaps the issue will be solved quicker.

Hi All, just got a reply from TP-Link. They ask me to try to use the driver below and follow the instruction below to install the driver: http://www.tp-link.com/en/faq-920.html . T6E...

T1U is a 5GHz single band network adapter. It can't detect 2.4G but only 5G. But many routers just broadcast 2.4G signal. You need to check whether your router is a dual band router first. If you...

That's the right driver. I just got another driver for my windows 10 Fall Creators Update. You may have a try. http://support.tp-link.com/f/3004339080/

Hi Bisk, Sometimes the driver setup will be affected by firewall or anti-virus software, so it can't detect the adapter. You can go to device manager to check Network Adapters or Other Devices. The...