We've prepared firmware 18.104.22.16898. Please see below for the changelog and links to the firmware binaries. This initial release is at Stable Candidate status. Assuming no critical bugs and/or regressions, then this will be posted to our download page and pushed out to recent stable and stable candidate release branches (5.6, 5.7, 5.8, etc.) on June 25th.
Firmware changes since 3.9.27:
[UAPG2/G3] Enable multi-hop wireless uplink on all (G2/G3) UAPs.
[UAPG2/G3] Fix a couple issues with fast roaming when open SSIDs are also present.
[UAPG2/G3] Fix guest portal support.
[UAPG2/G3] Remove CCQ reporting from SNMP, as it is unsupported on these devices.
[UAPG3] Add RADIUS authentication tracking.
[UAPG3] Enable uplink priority support.
[UAPG3] Fix L3 adoption issue.
[UAPG2] Improve reliability under heavy load.
[UAPG2] Fix 2.4GHz disconnect issue.
[UAPG2] Fix priority uplink support.
[UAPG2] Fix an issue with client reassociation for SSIDs with Fast Roaming enabled.
[UAPG2] Fix a bug which may trigger a network loop when using wireless uplinks.
[UAPG2] Fix broadcast leak when using DVLAN.
[UAPG1] Fix SNMP support.
[XG/BaseStationXG] Enable VHT160 support.
[nanoHD] Add wireless uplink support.
[nanoHD] Add support for priority uplink selection.
[nanoHD] Add RF environment scanning.*
[nanoHD] Add RADIUS MAC Auth support.
[nanoHD] Add UAPSD support for multi BSSIDs.
[nanoHD] Add legacy device support.
[nanoHD] Improve 5GHz rate control algorithm.
[nanoHD] Improve auto channel selection.
[nanoHD] Improve 2.4GHz auto channel selection.
[nanoHD] Improve speed for non-guest VAPs, when guest VAPs are also present.
[nanoHD] Bandsteering changes, bringing it inline with other UAPs (that support bandsteering).
[nanoHD] Fix Ethernet status reporting.
[nanoHD] Fix 802.11w support.
[nanoHD] Fix broadcast filter.
[nanoHD] Fix bandsteering disconnection issue.
[nanoHD] Fix a potential RADIUS accounting bug.
[nanoHD] Fix MAC ACL.
[nanoHD] Fix a bug which caused the MAC address filter to not work in some cases.
[nanoHD] Fix a bug with bandsteering so 2.4GHz only client STAs can connect (reportedHERE).
[nanoHD] Fix a bug that prevented client STAs from connecting to hidden 2.4GHz SSIDs.
[nanoHD] Stability and performance improvements.
[nanoHD] Remove old guest client STAs once disconnected from the network (reported HERE).
[UAP] Add process restart and exit status events.
[UAP] Add RTT latency tracking.
[UAP] Add authentication tracking.
[UAP] Improve client statistics reporting.
[UAP] Fix a bug with MeshV3 wireless adoption.
[UAP] Fix reported client STA signal.
[UAP] Fix a print issue with stainfo, where RSSI bleeds into TX rate.
[UAP] Fix TX retry accounting.
[UAP] Fix uplink status reporting.
[UAP] Fix rate limiting on non-guest SSIDs.
[UAP] Fix the memory leak when using broadcast/multicast filter and RADIUS assigned VLANs.
[UAP] Disable PMKSA caching by default.
[USW] Add Port Security and MAC ACL support.*
[USW] Add 802.1X guest VLAN support.*
[USW] Restart DHCP client after a port is up.
[USW] Fix LAN client stats when using LACP/LAG.
[USW] Fix issue with default VLAN not working when using MAB.
[USW] Fix ability to toggle flow control.
[USW] Disable SNMP by default.
[USW] Reduce max VLANs to 255 (default), which lowers memory use by ~10%.
[HW] Add URL support for DHCP option 43.
[HW] Several fast-apply provisioning improvements.
[HW] Unify several modules across various UniFi platforms (UAP, USW and USG).
[HW] Various bug fixes and improvements.
[SEC] Security improvement.
*Controller support may vary/ pending.
NOTE: You may start to see EVT_AP_RestartProc events in the controller log. If you see these, please report if there is anything specifically in your setup that triggers the events. The processes restarting is not new, but the reporting of the restarting is, and we are using these reports to clean up these issues.
IMPORTANT NOTE: For users with UAP, UAP-LR, UAP-OD, UAP-OD5 on 3.9.37/38. You will need to set the WLAN group to off to be able to upgrade these models from 3.9.37/38 to another release (3.9.39 or otherwise). If the problem still persists after disabling the WLAN group, then you may need to disable the uplink connectivity monitor. Please be mindful when disabling the uplink connectivity monitor as that will also disable wireless uplinks, which will disconnect your APs. If that happens you will need physical access to wire the APs to your network.
Any and all feedback is welcome, including lettings us know about successful device upgrades. When reporting an issue, please ensure that you include the following information:
Firmware version (previous and current).
Links are all HTTPS. This assumes your device(s) are currently running at least 3.7.51, and that the device's date is properly set (i.e. it can reach a NTP server). If you encounter issues with the upgrade, or your device isn't on a minimum supported firmware, then you can change the link to HTTP before performing the upgrade.