JSC is not connecting after upgrading the SRX to 22.4R3-S2
25/07/2024 16:31:32 - ERROR - MONITOR: Configuration download - Login: HTTPS request failed (Return code: 404)
JSC logs report HTTPS request fail
Post upgrading the SRX to 22.4R3-S2, all VPN users were affected.
JSC would not connect and fail with error.
This is isolated and identified as reported in the PR, https://prsearch.juniper.net/problemreport/PR1825573.
The reason is identified as lo0 being used as the external interface for the JSC vpn configuration.
Workaround:-
Add inet6 address in lo0 example set interfaces lo0 unit 0 family inet6.
Also ensure that only 1 interface is configured for the unit configured in ike gateway