Operational Defect Database
BugZero found this defect 318 days ago.
Data sources
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WatchGuard Technologies | kA16S000000gDOrSAM
T20, T40, T80 loses network link when connected to device that does not support full duplex
Last update date:
7/6/2023
Affected products:
Firebox T20
Firebox T40
Firebox T80
Affected releases:
All
Fireware
11.x
11.1.x
11.10.x
11.10
11.10.1
11.10.2
11.10.3
11.10.4
11.10.5
11.10.6
Fixed releases:
All
Description:
Issue
The Ethernet interfaces on the T20, T40, and T80 might not complete a physical network link when connected to devices that do not support full duplex connections. The WAN Interface 0 supports both half and full duplex connections.The LAN interfaces only support full duplex connections. For more information, go to T20, T25, T40, and T45 interfaces 1 to 4 support Full Duplex only in the Knowledge Base.
Workaround/Solution
Make sure the Firebox LAN interfaces and the network devices you connect to these ports are set to auto-negotiation or full duplex. If the connected device does not support full duplex/Gigabit capabilities, the connection might work if you change the cable between the Firebox and the device from a regular Ethernet patch cable to a crossover cable.
