VLAN interface missing after OS upgrade
Operating system updates can break system settings network panels entirely, preventing you from getting into networking. Additionally, configured VLAN interfaces like ens1.99 may disappear completely and no longer show up via ip addr or ip link.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
Found another way around this?
Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.
- 1Manually flushing the parent interface config and restarting the networking serviceDid this help you?
- 2Removing the auto line for the vlan, removing the vlan_raw_device, and changing to a bridge configDid this help you?
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
“During some testing it was noticed that the VLAN interface, ens1.99, was no longer shown via ip addr or ip link .”source ↗
“we have two machines so far that now have broken system settings network panels. You can't get into networking.”source ↗
Where this came up
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