Hi,

More than 4 clients can connect to it and access internet. The recommended clients is about 15.

Back to your case, we can do some troubleshooting:

What is the light status of RE200?

Whatis the IP address and default gateway of the new clients? Can they ping the router? How to check IP address: https://www.tp-link.com/en/support/faq/838/

With new clients connected to the main router directly, can they access internet?

What is the current hardware and firmware version of the RE200?

Thanks in advance.

Best regards

Ahkm007 wrote

After the 4th clients; other new clients can be loging but NOOOO internet access!!

any help?