[Known issues] Omada Controller v5.15.20.18
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Depending on the original version you want to install, it's recommended to update Java first.
apt update
apt install java17-runtime (or java17-runtime-headless)
After that, we can install without any problems.
wget https://static.tp-link.com/upload/software/2025/202503/20250331/Omada_SDN_Controller_v5.15.20.18_linux_x64.deb
dpkg -i Omada_SDN_Controller_v5.15.20.18_linux_x64.deb
Errors detected:
- If the sites did not previously have Fast Roaming enabled, after the update, all clients at that site will connect to only one AP. Temporary fix is to create a second WLAN group and manually assign the failed APs to this group.
Hi @Mythology89
Thanks for your sharing about updating Java.
And this is also mentioned in the release note of this firmware:
Regarding to the fast roaming issue you reported, would you please let us know the topology of your network?
How many EAP units are in the network? Did you build a mesh network?
How long after the firmware upgrade did you notice this issue? It’s possible the controller hadn’t fully re-adopted all EAPs post-upgrade—especially if mesh is involved. The system may need time to stabilize.
BTW, Which version did you upgrade from to 5.15.20.18?
Hi @Mythology89
Thanks for your sharing about updating Java.
And this is also mentioned in the release note of this firmware:
Regarding to the fast roaming issue you reported, would you please let us know the topology of your network?
How many EAP units are in the network? Did you build a mesh network?
How long after the firmware upgrade did you notice this issue? It’s possible the controller hadn’t fully re-adopted all EAPs post-upgrade—especially if mesh is involved. The system may need time to stabilize.
BTW, Which version did you upgrade from to 5.15.20.18?