BugZero found this defect 1285 days ago.
Data sources
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11/11/2020
Firebox M270
Firebox M370
Firebox M470
Firebox M570
Firebox M670
All
Fireware
12.x
12.6.x
All
After you upgrade an M270 Firebox from Fireware v12.5.4 to v12.6.2, if the Firebox had an interface with a fixed link speed value, such as 1000 Mbps Full Duplex, the interface link speed value might change to 10 Mbps Half Duplex.
Change the value of the Link Speed setting to Auto Negotiate, then change it back to the original value.