Device can't see its VLAN after a switch link
VLAN missing from the trunk or set untagged elsewhere.
Try this first
- 1Check which VLANs are allowed on the trunk port
- 2Add the VLAN on both ends
- 3Test with a laptop on an access port of that VLAN
When to bring us in
We can audit and align the trunk config.
See also
- Wi-Fi drops randomly across the officeFirst rule out whether it is the access points or the internet connection itself. Different fix.
- One room or corner has no or bad Wi-FiNot always "add another AP"; often one is poorly positioned, or there is a metal wall in the way.
- Internet is suddenly slow for everyoneThree suspects: your provider, a colleague soaking the line, or a backup or update kicking in unexpectedly.
None of the above fits?
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