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Known Limitations
Learn about known limitations in this release for SRX Series devices.
For the most complete and latest information about known Junos OS defects, use the Juniper Networks online Junos Problem Report Search application.
Infrastructure
When upgrading from releases before Junos OS Release 21.2 to Release 21.2 and onward, validation and upgrade might fail. The upgrade requires using the 'no-validate' option to complete successfully. PR1568757
On SRX380, the Autonegotiation status on the 1G/10G ports may be incorrectly displayed as "Incomplete". This has no impact to traffic. PR1703002
Network Address Translation (NAT)
While port ranges are configured as part of NAT source pool. The port affinity allocation might fail as when the affinity allocation is failed for a flow then the port random allocation is set. The random allocation can allocate any port and the allocation failure can grow. PR1678563