Firmware update for MES23XX, MES33XX, MES2328I, MES35XX, MES5324. Version 4.0.27.4

23 October 2026

Firmware update

Firmware version: 4.0.27.4

The firmware and detailed description of the product capabilities are available in the Downloads or on the product page.

Added

  • Expanded the output of the show tech-support command.

Fixed

  • Fixed an error where the client might not receive a DHCP address when DHCP Snooping is enabled;
  • Fixed the banner display error when connecting via SSH;
  • Fixed errors in a number of Syslog messages;
  • Fixed an error in displaying the ip ospf passive-interface settings for VRF.

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