Important Notes
UniFi Switch 7.4.1 includes the bugfixes below. It is currently not available for the models listed below:
- USP-RPS
- USP-PDU-Pro/HD
Improvements
All Models
- Improved CPU usage when collecting port data for each MAC address.
Pro (24/48, Aggregation), Enterprise (24/48-PoE, XG-24)
- Improved RADIUS Accounting compatibility.
- Improved IGMP Leave handling when Fast Leave is not enabled.
- Added the ability to automatically restore port connectivity when a port fails to handle link-up/down events correctly.
Pro-Max, Pro (8-PoE, XG-8/10-PoE, HD-24)
- Improved IPTV stream stability when IGMP Snooping is enabled.
- Improved device connectivity when forwarding multicast traffic with IGMP Snooping enabled.
US-16-XG
- Improved SFP+ link compatibility.
ECS-24/48, Pro-XG (24/48, Aggregation), Enterprise-8, Flex-XG
- Improved QoS resiliency.
- Improved RADIUS Accounting compatibility.
USW-Pro-XG-48-PoE
- Improved connectivity with UACC-CM-RJ45-MG.
Bugfixes
STP & Stability
All Models
- Fixed false STP blocked anomalies when a port links up or when STP is disabled on a port.
Pro-Max, Pro (8-PoE, XG-8/10-PoE, HD-24)
- Fixed connectivity loss on QoS-configured ports when modifying other ports.
- Fixed management access loss after changing the Management VLAN.
- Fixed intermittent loss of management DHCP IP after reboot.
- Fixed management access loss under high PTP traffic.
- Fixed the missing default route after creating or removing a L3 network.
Pro-Max, Pro (8-PoE, XG-8/10-PoE, HD-24), USW-16/24/48, Lite-8/16-PoE, Aggregation
- Fixed connectivity loss after changing the Native VLAN.
- Fixed VLAN leakage on 802.1X-authenticated ports when RADIUS-assigned VLAN is enabled.
- Fixed VLAN configuration changes causing link flapping and STP state transitions.
- Fixed VLAN leakage during device boot.
Pro (24/48, Aggregation), Enterprise (24/48-PoE, XG-24)
- Fixed unstable link behavior when using the UACC-CM-RJ45-1G SFP module.
- Fixed ports continuing to forward traffic during switch reboot.
ECS-24/48, Pro-XG (24/48, Aggregation)
- Fixed an issue where mDNS traffic was not forwarded after rebooting the device with STP disabled.
- Fixed device going offline after deleting L3 network settings.
- Fixed Virtual Network Override causing SFP port link flapping and frequent STP topology changes.
- Fixed incorrect RSTP forwarding delay, causing prolonged STP blocking during port flapping.
- Fixed incorrect uplink state when configuring port mirroring on uplink LAG ports.
- Fixed STP status temporarily changing to Blocking when receiving STP Topology Change Notifications.
- Fixed LAG member ports not linking up properly.
- Fixed Storm Control settings being removed when modifying other port settings.
- Fixed SFP link loss after device boot.
- Fixed an issue where the device went offline when deleting L3 network settings.
- Fixed an issue where the device could go offline in rare cases.
IGMP & Multicast
Pro-Max, Pro (8-PoE, XG-8/10-PoE, HD-24), USW-16/24/48, Lite-8/16-PoE, Aggregation
- Fixed missing Router Alert field in IGMP General Query messages.
- Fixed PTP synchronization issues when IGMP Snooping is disabled.
- Fixed part of multicast streams not flooding after boot.
Pro (24/48, Aggregation), Enterprise (24/48-PoE, XG-24)
- Fixed Querier state transition when receiving a General Query from a Querier with a higher IP.
- Fixed IGMP Report leaks on ports that are configured with Pro AV.
- Fixed incorrectly set IGMP Querier Addresses when using IGMP Snooping on L3 Switch VLANs.
- Fixed L3 routing not functioning when Multicast Router Port is enabled.
Others
Pro-Max, Pro (8-PoE, XG-8/10-PoE, HD-24), USW-16/24/48, Lite-8/16-PoE, Aggregation
- Fixed an issue where 802.1X MAC-based EAP-TLS authentication did not work correctly.
- Fixed an issue where 802.1X MAC-Based authentication did not work when Rogue DHCP Server Detection was disabled.
Pro (24/48, Aggregation), Enterprise (24/48-PoE, XG-24)
- Fixed Unauthorized MAC Detected anomalies not clearing after the port stops receiving unauthorized MAC addresses.
- Fixed ports reporting incorrect Loop Protection Triggered anomalies after re-enabling the port.
- Fixed incorrect unicast storm detection port anomaly reporting.
ECS-24/48, Pro-XG (24/48, Aggregation), Enterprise-8, Flex-XG
- Fixed an issue where QoS did not work correctly on LAG interfaces after device boot.
- Fixed learning of duplicate MAC entries on different ports.
- Fixed an issue where certain SFP module information was missing.
EnterpriseXG-24
- Fixed Flow Control not working correctly.
Enterprise-8-PoE
- Fixed an issue where the Voice VLAN was not correctly assigned.
US-8
- Fixed an issue where the SNMP Community name setting failed to apply.