Ap bridge with client RX 0

RouterOS Wireless Networking
1

I am having issue in my network. Some clients with CPE dialing to pppoe server is connecting the AP in bridge with good signal and is not sending package. But the are receiving! It is happen different APs too.

What can it be? After reboot sometimes comes back.

The are others clients in the same AP and they are working perfect.
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2

check your security profile.

3

Thanks for your reply! I do not have security profile. Only MAC control.