Problems with connecting to the WiFi on my wired network's child node

Scenario:  I have a wired network where the parent and child nodes are wired to a managed switch.  Why can’t I connect to the child node’s WiFi?

See the workarounds below if either one will work:

Workaround 1:  When the node is set up with a managed switch as pictured below, your devices will not be able to connect to the child node’s WiFi unless the managed switch is configured to forward and allow VLAN 3 and VLAN 4 traffic on all ports connecting to a node.  These two VLANs are needed for WiFi setup to function.  No configuration is needed for unmanaged switches.  To configure VLAN on your Linksys Managed switch, click
hereIf you have a Linksys Smart Switch, click here.

Workaround 2:  When the node is set up with a managed switch as pictured above, turn OFF HomeKit Integration from the Linksys app and power cycle all child nodes.  As a trade-off, you cannot link the node to the Apple® Home app.  For complete instructions, follow the steps below:

Step 1:
Log in to the Linksys app.  Then, tap the Menu icon at the upper-left corner of the screen and then tap Network Administration.

Step 2:
Turn OFF the HomeKit Integration button.

You can now power cycle all your child nodes.

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