Hi @Chrisasnyder 

Thanks for reaching out to TP-Link Business Forums.

May I confirm what's the current version of your controller?

This seems to be related to the configuration. After setting up the VLAN, did you assign it to a certain port only?

You can refer to this How to configure VLAN with Omada Network v6 | Omada Network Support

  @Chrisasnyder 

Make sure you have trunked all ports between gateway and EAP to carry the untagged 1st vlan and the tagged 2nd, make sure you set the SSID vlan tag correctly, and this should just work

  @GRL 

  @Gabriel-TP

Thanks for the reply. The versions are below.  The problem isn't with the EAP, that only provides DHCP to the default(1) lan which is still working. The problem is with a wired only VLAN. Before upgrading the router from 2.2.6, the vlan setup was functioning correctly. After the upgrade is when the problems started. I did remove the vlan, leaving only the default in place, and rebuilt everything, and I did follow the guide in the link you provided.

Further reading of various threads, I found some mention that resetting all devices to factory default and starting completely over resolved their problems. Unless I have another option I'll have to try that next, but it takes a bit more planning.

  @GRL 

In the screen shot, you can see all the ports (blue highlight) are trunked and the (red highlight) are the ports for the devices that are in the vlan. 

Today I did a full factory reset on all the gear. Setting up the vlan exactly as I did before worked correctly this time. 

I'm concluding that something did not carry over from the router version 2.2.6 upgrading to the newer firmware.