All stack members must run the same firmware version. Ports on stack members that don’t match the master switch firmware version don’t come up and the show switch command shows a code mismatch error.
- NETGEAR recommends that you schedule the firmware upgrade when there is no excessive network traffic (such as a broadcast event).
- Download new firmware using TFTP or xmodem to the master switch using the copy command.
Once the firmware is successfully loaded on the master switch, it automatically propagates to the other units in the stack.
CAUTION:
To avoid errors during code propagation, do not move stack cables or reconfigure units.
- If an error occurs during code propagation, first check to make sure the master switch is running the correct firmware. Then issue the copy command (in stack configuration mode) to make another attempt to copy the firmware to the units that did not get updated.
- Once code is loaded to all members of the stack, reset all the switches so that the new firmware starts running.
For more information, see the following support articles:
- What is switch firmware and how does it work with my M5300 managed switch?
- What is code mismatch and how does it work with my M5300 managed switch?
- How do I migrate a configuration with a firmware upgrade on my M5300 managed switch?
- How do I copy master firmware to a stack member using the web interface on my M5300 managed switch?
This article applies Version 10.x or above firmware on the following switches:
- M5300-28G (GSM7228S)
- M5300-5G (GSM7252S)
- M5300-28G3 (GSM7328Sv2h2)
- M5300-52G3 (GSM7352Sv2h2)
- M5300-28G_POE+ (GSM7228PSv1h2)
- M5300-52G-POE+ (GSM7252PSv1h2)
- M5300-28GF3 (GSM7328FSv2)
Last Updated:07/07/2025
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Article ID: 21893