NebulaFlex Switch XS3800 Series - V4.80 Patch 5 Firmware Release
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Zyxel_Melen
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Zyxel Employee
Zyxel Employee
Zyxel Switch XS3800 Series Release Note
April 2026
ZyNOS Firmware Version on all models
(Click Hyperlink to download the firmware directly)
Zyxel XS3800-28 - V4.80(ABML.5)C0
New Feature and Enhancements
1. Optimized system stability and synchronization with Nebula to enhance overall device connectivity and management reliability.
2. Enhance SNMPv3 credential security by applying cipher-based encryption to the username and password.
Bug Fix
C=Cloud mode, S=Standalone mode
| Bug fix | C | S |
| 1. [ITS# 251001963] Enhanced queue protection mechanism and MAC address roaming handling to prevent high CPU utilization and system hang during burst Layer 2 roaming events. | V | V |
Please refer to the Download Link for more details.
Zyxel Melen
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