If you are talking about projects, then normally you should have special software, which can calculate the coverage based on floor plan. Also, you can do active coverage research with such software...

If you check specifications on website, then IPSec speed for TL-R600VPN is IPsec VPN Throughput (3DES) 13Mbps So, I guess, nothing you can do. TL-ER6020/6120 has much higher IPSec speed, that's one...

I do not understand properly, what your topology is. 4 different routers TL-R470T+? Or 4 WANs on 1 TL-R470T+? 4 other routers, which are connected to 4 WANs of TL-R470T+?How is it connected in...

I doubt you will find people there, who used AWS with TP-Link. However, I checked guide how to configure it and there is an example with bloody Draytek :D It is just IPSec VPN configured, nothing...

As I understand, Web-interface works properly. Well, for the old switches, telnet/ssh doesn't work by default, it will show after login, that you need to configure Enable password firstly. You should...

Yeah, but I mean, the topic's name is 3.1.4 (windows) has been released, but there is no topic about the newer version (3.1.13)