802.1X Authentication - ZyXEL Communications NXC2500 Troubleshooting Manual

3 Check AP1 and AP2's coverage overlap
If the AP1 and AP2's coverage don't overlap, the station disconnect when
roaming.
4 Check RSSI of overlapped area
If the RSSI is lower than -65dBm, the station might disconnect because of
weak signal.

8 802.1X authentication

How should we do when the 802.1X authentication failed with RADIUS, AD
and LDAP? There are three phases for you to find what the problem let the
authentication failed is. The check order is configuration, network and
information collection. First, we have to confirm that the configurations are
the same and then check the network is no problem. If there is no problem
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