Access Point Troubleshooting

The table below lists some of the access point (AP) troubleshooting guidelines.

 

 
Problem Solution
The AP did not receive a valid IP address via the DHCP. Be sure you have an active DHCP server on the VLAN/subnet with the connected AP. If the AP fails to get a valid IP address, reboot it to see if that resolves the problem.
Unable to connect to the server.
  • Be sure you have an active server reachable from the network with the connected AP. If a firewall or a router has Access Control Lists (ACLs) enabled between the AP and the server, be sure to allow traffic on UDP port 3851.
  • Use the IP-based server discovery method and be sure you have correctly entered the DNS name, wifi-security-server, on the DNS server.
  • Be sure that the DNS server has correctly configured IP addresses or the DHCP server provides the IP addresses.
  • The AP might fail to authenticate with the server. In this case, an 'Authentication failed ' event logs to the server. Refer to the event for recommended action.
The AP has encountered a problem.
  • If you use Arista Cloud Services, open the TCP port 443 (SSL). If you have an on-premises installation, then open UDP port 3851 and port 80.
  • If you use 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 该邮件地址已受到反垃圾邮件插件保护。要显示它需要在浏览器中启用 JavaScript。.