I also haven't found the modem on tplink compatibility list. In that case, you can only have a try because we can't tell whether they can work properly or not. It's better to get a modem which is...

Do you mean the firmware on this link is not accepted? https://www.tp-link.com/es/download/Archer-MR200_V1.html#Firmware There are three versions on that site. Or you may try to update one by one...

There are two parts of firmware on PLC. It won't update both of them when tplink releases a new version each time. It's ok if it shows it's successful when you update the firmware through utility....

AV600 is the t heoretical transfer rate not real speed we can get. High transfer rate will help us get better stable speed in real environment. If our bandwidth is lower than 100 megatbits, the units...

you may have a look at here: https://www.tp-link.com/en/faq-434.html We can establish connection one by one not be a must to connect to the first one.

AV600 can provide you wireless connection and the default password can be found on the label of the bigger unit. You can login the web UI to change the password or just press wifi clone button to...