you change the cable from router to modem? if your modem is router as well, you can setup tp-link as access point. connect cable from modem to lan 1 port of Archer c3200 and disable DHCP server on...

hi, this TL-WR940N doesn't support 5ghz, it is 2.4Ghz only.

There must be some compatible problem between the re200 and your main router. Need wireshark to check the package transferred.

Your are right, it can be done but the second extender must use another SSID. If both of the range extenders are using the same SSID as your main network, they will try to connect each other(range...

It seems the range extender lost the IP from router's DHCP, so it was trying to release IP for your client devices. If a range extender is working properly, all client devices should receive IP from...

is the wifi light on? if no, reset the router for a try.(hold the reset for 8 seconds.)