Switches Suddenly Don't Connect to VSZ

[jrctechnologies]

Hi all,

Suddenly on Saturday, switches won't connect to VSZ from over the WAN or even on the same subnet as the control IP.

HTTPS and SSH are responding on the control IP with the appropriate https certificate and ssh key

The log shows a blank error -  Apr 02 15:15:21:I:MGMT Agent: Failed to connect to network controller at 10.10.103.25 Error:

Does anyone have any thoughts, or should I contact TAC?

[jrctechnologies]

Additional context

- Access points are working fine, both locally and over WAN.

-This is VSZ-H

-If I reboot VSZ, the switch logs show "Apr 02 15:30:44:I:MGMT Agent: Failed to connect to network controller at x.x.x.x Error: No response received from sz server"

[Sunil_Acharya]

Hi Jrctechnologies,

Greetings,

Have you performed any recent changes in the switch or controller ?

Does the setup worked fine earlier ?

Please check the compatibility matrix of firmware between controller and switch.

I also request to check the below article.

https://support.ruckuswireless.com/articles/000009311

Please provide the output of "show sz status" and "show log"

Regards,

Sunil Acharya

[jrctechnologies]

-No changes to any of the 20 switches that were connected, their networks, or my network

-ICX 8200s running 10.0.0 and 7150s running 9.0.10c all were working fine

-I included the log message in my original post, but I pasted it again below

============ MGMT Agent State Info ===================

Config Status:Enabled Operation Status:Enabled
State:QUERY Prev State:SSH CONNECTING Event:SZ_TIMER_EVENT

SWR List : None
DNS List :
Active List : 10.10.103.25
Active List IPV6 : None
DHCP Option 43 : No
DHCP Opt 43 List : None
Backup List : None
Backup List IPV6 : None
Merged List : 10.10.103.25

SZ IP Used : 10.10.103.25
Port List : None
Server Port Used : 443
Query Status : Initiated

SSH Tunnel Status -:
Tunnel Status : Not Initiated
SSH Port : 22
CLI IP/Port : None/None
SNMP IP/Port : None/None
Syslog IP/Port : None/None
HTTP CLIENT IP/Port : None/None
HTTP SERVER IP/Port : None/None
Timer Status : Not Running

Dynamic Log Buffer (4000 lines):
Apr 03 05:08:20:I:MGMT Agent: Failed to connect to network controller at 10.10.103.25 Error:
Apr 03 05:08:16:I:MGMT Agent: Failed to connect to network controller at 10.10.103.25 Error:
Apr 03 05:04:08:I:MGMT Agent: Failed to connect to network controller at 10.10.103.25 Error:
Apr 03 05:04:04:I:MGMT Agent: Failed to connect to network controller at 10.10.103.25 Error:
Apr 03 05:04:00:I:MGMT Agent: Failed to connect to network controller at 10.10.103.25 Error:

[tm67]

same issue here, any resolution?