@Clive_A Just posting to help others. The TP-Link TL-WA3001 appears to isolate SSIDs connected to VLANS, it basically treats all the SSIDs like guest IDs, while there is no documentation on this, I...

TP Link, can you check my VLAN configurations on my SG1108E switch, they are in the picture below. I have a FW/Router connected to a TP-Link TL-SG108E on port 1, on port 2 I have a TP-Link TL-WA3001...