NETGEAR EX6200 Product Manual page 17

I enabled a wireless MAC filter, wireless access control, or
access control list (ACL) on my router. What should I do when
installing the extender?
When the WiFi device connects through the extender to your
router, the MAC address of the WiFi device shown on the router is
translated to another MAC address. If your router's MAC filter,
wireless access control, or ACL is enabled, the WiFi device connects
to the extender but cannot get an IP address from the extender and
cannot access the Internet.
To allow the WiFi device to receive an IP address from the extender
and access the Internet, you must provide the translated MAC
address to the router.

To add a translated MAC address to your router:
1. Log in to your router and disable the MAC filter, wireless
access control, or ACL.
For more information on how to disable your router's MAC
filter, wireless access control, or ACL, see your router's
documentation.
2. Power on the extender and connect all of your WiFi devices to the
extender.
3. Make sure that the Link Rate LED remains lit.
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