A new stable switchCatalyst firmware is now available on Mon, 21 Jul 2025

[FirmwareBot]

A new stable switchCatalyst firmware version is available. Firmware CS 17.2.2 was just released on 2025-07-21 and has been in this firmware category since 2025-07-21.

[cmr]

CS firmware versions CS 17.2.2 changelog

Important notes

• This version's IOS image is based on 17.12.4 CCO. Upgrades to this version will result in a full system reload.

New feature highlights

• Client Analytics
• Device Uptime for MS390s
• EEE (Energy Efficient Ethernet) Support
• Multi-auth with support for guest/failed/critical
• RADIUS Caching
• Support for Multicast in Live Tool
• VLAN to SGT mapping

General fixed issues

• Fixed a bug that caused stack ports on standby switches to incorrectly appear to be disconnected
• Resolved a bug during upgrades from CS16 to CS17 that sometimes caused PoE settings to change during the upgrade process
• Resolved an issue that sometimes prevented storm control settings from being correctly applied to member and standby switches in stack configurations
• Fixed a bug that caused inconsistent information to be displayed in the "Adaptive policy group" column when reloading the Network-wide > Clients page in Dashboard
• Resolved a bug that prevented the STP blocking icon from being correctly displayed in Dashboard when an alternate port was blocked by STP
• Resolved an issue that prevented clients and client traffic from being correctly displayed after moving the Uplink role between switch ports
• Fixed a bug that sometimes caused firmware upgrades to fail on stacks upgrading from CS16 to CS17

Ms390 fixed issues

• Fixed a bug that sometimes caused UDLD loop detection alerts that could not be cleared

General known issues

• The Meraki container may reboot in rare circumstances, resulting in temporary loss of connectivity to Dashboard
• Client traffic reporting may fail on high-speed (greater than 10Gbps) or trunk ports

C9300 known issues

• In rare circumstances, high levels of MAC flapping can lead to memory exhaustion in C9300X switches in stack configurations. An ios-xe restart is required to restore service to affected switches.

Ms390 known issues

• MS390s may display an alert, "A power supply is offline" when a PSU isn't installed in the second slot
• Clients may fail to obtain a fixed IP address if their DHCP discover packet doesn't contain a client identifier field. These clients will instead be assigned an IP address from the DHCP pool.