@rtk The max number of devices that can connect simultaneously is about 64, and to ensure the performance, the recommended wireless clients is 30. May it help and have a nice day.

@MrAndyB Sorry to hear that you have some problems with the powerline adapters, we will do some troubleshooting and try to fix it. First the powerline link rate between the 2 adapters is not the...

@Shelly84 The default extender's wifi is open, no password needed. While once you set it up, the password will be the same as the main router's wifi password. May it help.

@Agapib There are 2 leds, the power led and the signal one. Except the power led, please ensure that the signal led is lit up and solid blue.

@Mzohri_83 Please give me the below details so that we can do more troubleshooting. a. What's the light status of the RE450 and main router when the extender stops working? b. How often it drops...

@RG2000 The default login password is admin, all in lower case. Meanwhile, if you have bound the RE200 to the TP-Link cloud, please use the TP-Link account password to access the web UI. May it help.