@Fadhelazhar_ 

Hi,

Thanks for your patience.

May I know the hardware and firmware version about the TL-WA855RE?

And what is the model number of the home router?

Would the RE and signal lights turn off when the connection dropped?

How long have you had the device and when did this issue start?

If possible, please try to change the wireless channel on the home router, like channel 11 for 2.4ghz to reduce the wireless interference;

Thank you very much and wait for your reply.