If the TL-WA701ND is connected to the Netgear switch by a Ethernet cable, then it should be Access Point mode. It is better not use the same SSID and same channel for your wireless box and TL-WA701ND.

TL-WR842ND is a kind of SOHO router, I don't think it is a good way to add a external high gain antenna to extend the signal 600m away. If the router states this, maybe TP-LINK has realized that it...

It seems the hardware problem for the router after the update. It shows quite unstable and there is no response by reset on the router. No idea now expect the hardware problem.

Can the TL-MR3020 ping your main router on the setup page. System Tools-->Diagnostic-->Ping the main router. If it is timeout, then no connection between these two devices. Did the TP-LINK and your...

For your Safari, you can type in the numbers only 192.168.1.1. What is more, make sure that your computer is connected to the unit by a cable or make sure that your computer is configured IP address....

You can try the IP 192.168.0.1.Updated to the latest firmware will also cause the IP change. The best way is to check the computer's Default gateway by do Ipconfig/all in the cmd window