As of 12.5, any WSM install I try to create VLANs on just makes the VLAN disappear when hitting "OK". Anyone else seeing this? Really annoying having to create the VLAN in Webui for it to be seen in Policy Manager to configure policies accurately.
See this Known Issue:
Cannot create new VLANs with Policy Managerhttps://watchguardsupport.secure.force.com/publicKB?type=Known Issues&SFDCID=kA10H000000g3QzSAI&lang=en_US
Follow these steps to create a new VLAN in Policy Manager:
1. Open Network>Configuration.
2. Double-Click the VLAN interface.
3. Click New VLAN.
FYI - V12.5.1 Update 1 is now out
Same VLAN problem though