Router d7000 stops to provide connection to new wireless devices connected

[ichhabenichts]

Hello everyone! I want to submit my problem with the mentioned router: if I do connect a new device to WLAN, every other device already connected - via Wi-Fi - stops suddenly to receive the signal. For example: while I whatch netflix on my laptop I connect my smartphone to the Wi-Fi: well, streaming stops to function, and the Wi-Fi signal on my phone displays a problem over the connection, with the result the both of them (laptop & smartphone) ain't getting any internet connection.

Apologize to the poor-ish way to describe my problem but I can't add any further informations. 

Many thanks for any help.

[ichhabenichts · Accepted solution]

Ok update: I realize I did activate control-on-acces option. Even if my smartphone was white listed, problem was still present. I uncheck this option, re entered all the settings from scratch (user id, password, type of PPP) and now it is working fine.

[ichhabenichts · Accepted solution]

Ok update: I realize I did activate control-on-acces option. Even if my smartphone was white listed, problem was still present. I uncheck this option, re entered all the settings from scratch (user id, password, type of PPP) and now it is working fine.