【Typical Case】Troubleshooting AP820-L Connection Failure with Static IP on Ruijie Cloud

Keywords:

Connection Failure on Ruijie Cloud
1.Device Model and Firmware

Device Type	Device Model	Firmware Version
Wireless	AP820-L(V3)	AP_RGOS11.9(6)W3B1

Issue Description


The devices were connected according to the topology shown in the preceding figure.Access points were directly connected to the NBS switch, which forwarded connections to a third-party router and ISP. However, three AP820-L(V3) devices were unable to connect to Ruijie Cloud.
The third-party router functioned as the DHCP server. The access points and the NBS switch accessed the Internet using static IP addresses, and the NBS switch successfully connected to Ruijie Cloud.

Troubleshooting
1. Check if these three access points were previously connected to Ruijie Cloud to rule out device model restrictions.
2. Check if the uplink firewall is configured correctly to avoid blocking ports 80 and 443, as well as the IP addresses of these three access points.
3. Check if these three access points have Internet access. Since they use static IP addresses, confirm that their gateway IP address is correctly configured and can be pinged successfully.

4.Perform ping tests to 8.8.8.8 and the default cloud URL to verify domain name resolution and response addresses.


5. Check the CPE WAN Management Protocol (CWMP) status and configuration.


The cause has been identified: the ACS URL was incorrect. After entering the correct URL, the access points successfully connect to Ruijie Cloud.



Root Cause

The access points were unable to connect to Ruijie Cloud due to an incorrect ACS URL
Solution

Run the following commands to manually modify the ACS URL of the AP:
Ruijie#configureter
Ruijie(config)#cwmp
Ruijie(config-cwmp)#acsurl
http://cwmpsvr-as.ruijienetworks.com/service/tr069servlet
Ruijie(config-cwmp)#end
Ruijie#wr