Access Point Troubleshooting
The table below lists some of the troubleshooting guidelines for the access point (AP).
Solution
Problem
Ensure that the DHCP server is on and available on the VLAN/subnet
to which the AP is connected. If the AP still fails to get a valid IP
address, you can reboot it to see if the problem is resolved.
The AP did not receive a valid IP address via the DHCP.
Unable to connect to the server.
• Ensure that the server is running and is reachable from the network
to which the AP is connected. If a firewall or a router has Access
Control Lists (ACLs) enabled between the AP and the server, ensure
that traffic on UDP port 3851 is allowed.
• Use the IP-based server discovery method and ensure that you have
correctly entered the DNS name, wifi-security-server , on the DNS
server.
• Ensure that the DNS server IP addresses are either correctly
configured, or are provided by the DHCP server.
• The AP might fail to authenticate with the server. In this case, an
'Authentication failed ' event is raised on the server. Refer to the
event for recommended action.
The AP has encountered a problem.
• If you are using Arista Cloud Services, then open the TCP port 443
(SSL). If you have an on-premises installation, then open UDP port
3851 and port 80.
• If you are using a Proxy, Web Accelerator, or URL Content Filter
between the AP and the Internet, ensure that the settings allow
communication between the AP and Arista Cloud Services.
• If your configuration requires you to specify an exact IP address
or IP range for Arista Cloud Services, please contact
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