Operating system of your laptop? 169... is an invalid IP address. Did you try to configure static IP address, default gateway, DNS manually on your laptop? IPv4: 198.x.x.110 sub: 255.255.255.0,...

Read the explaination about upgrade here. http://forum.tp-link.com/showthread.php?80292-TL-PA4010-drops-multicast-packets&p=158193&viewfull=1#post158193

Any other extension cord for you to test? As I said, extension cord which has surge protector function plugging-in such equipments to the outlet can help to avoid interference.

1. Any anti-virus software is running on your computer? Try to disable it. If possible, try to install the utility on a different computer. 2. Homeplug AV standard... To manage other devices, is...

It is a bug verified by TP-LINK support indeed. Actually, the password cannot be longer than 15 characters. If it is longer than 15 characters, only the first 15 will be saved as the password. When...

It is not reserved for "enterprise class" APs. As I know, the latest firmware of RE200 adds DFS feature. http://www.tp-link.com/en/download/RE200_V1.html#Firmware