Early Access Omada Switch Pre-Release FW Preview for SDN Controller 6.2.X.X (Released on March, 17th, 2026)
Early Access Omada Switch Pre-Release FW Preview for SDN Controller 6.2.X.X (Released on March, 17th, 2026)
Release Notes
New Features:
1. Added support for NAT Traversal.
2. Added compatibility with Omada Config Tools V2.0.
3. Added support for Private VLAN.
4. Added support for Lightweight DHCPv6 Relay Agent (LDRA).
5. Added IGMP Snooping VLAN SSDP Flood to ensure that packets destined for multicast group 239.255.255.250 (commonly used for SSDP service discovery) are always flooded.
6. Added Extend Mode for non-PoE models.
7. Added support for configuring VLAN Isolation via SNMP.
8. Added a CLI command to display Spanning Tree Topology Change Notification (STP TCN) statistics for each port.
Enhancement:
1. Supported common MAC address formats for MAC address input fields.
2. Supported configuring 802.1X authentication in MAB-only mode.
3. Supported disabling DNS Adoption to meet specific network management requirements.
4. Optimized the fan status log reporting frequency.
5. Improved LLDP protocol compatibility.
6. Added system self-healing recovery capability to enhance long-term device stability.
7. Improved management link reliability.
8. Improved STP module reliability and optimize the stability of Spanning Tree operation.
Bug Fixes:
1. Fixed the issue where SNMP nodes Q-BRIDGE-MIB and BRIDGE-MIB did not comply with protocol specifications.
2. Fixed the issue of wired client loss in abnormal scenarios.
Firmware Download
Before the Upgrade
(1) Please be sure you have read the Beta Test Agreement before upgrading the Beta firmware!
(2) You may follow the following guide to upgrade your Omada devices. How to Upgrade/Downgrade Omada Switches
Firmware Download Link
| S4500/S5500 Series | SG3 Series | SG2 Series |
| S4500-16G2F V1.0 V1.0.3 |
You can download the TP-Linkmibs to work with your switch to experience more features.
Notes:
(1) We recommend using Find in Page (Ctrl/Command+F) to locate the exact model you have to ensure the correct firmware is installed.
(2) Your device’s configuration won’t be lost after upgrading.
Additional Information
All feedback is welcome, including letting us know about successful device upgrades.
If somehow you encounter an issue during or after the upgrade, it's suggested to contact us with the following info:
- Omada Controller version if you have any.
- Device Firmware version with Build number (previous and current)
If your model gets bricked during the firmware upgrade, you may follow the guide below to recover the firmware.
Configuration Guide How to Upgrade/Downgrade Omada Switches
Update Log
March, 17th, 2026
Release of this article.
Recommended Threads
Omada_Network_Application_V6.2.x.x Pre-Release Firmware (Released on 11th Feb, 2026)
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Already did the upgrade or downgrade, don't know what it is 
at the moment and all clients are back again.
Thx for the hint!!
cu
kid
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Upgraded my SG2008P(UN) 3.20 to the March 17th pre-release FW. Can confirm that the missing wired clients bug is fixed.
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Several days ago I moved from using multiple SSIDs with WPA2 passwords to using a single SSID (on each band) and PPSK without Radius. Earlier today I upgraded the network switches (SG2008) to the latest pre-release firmware that was released this morning.
Everything is working as expected except for the topology map in the controller. Selecting a VLAN under Network Filter is highlighting wireless clients that are not members of the selected VLAN. For example, I can select the IoT VLAN and the IP cameras are highlighted even though they are on a separate VLAN. I don’t recall seeing this before. Is this due to using PPSK and a single SSID? Is it perhaps a bug in the latest switch firmware?
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Hi @jra11500
Thanks for the feedback.
It would be much appreciated if you can provide any screenshot on the Map page from your Omada Controller after switch update.
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Attached is my topology map after selecting the camera VLAN in the network filter. As you can see, there are Amazon Echo devices and an A/C unit that are highlighted even though they are not on the camera VLAN. If it is not the latest switch firmware that is causing this, then it might be the EAP650-Desktop firmware which I am beginning to suspect.
I have tried to narrow this down by rebooting every device on the network (except the gateway). No luck! I really don't want to downgrade the switch firmware just to see what the results might be.
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