If you have recently updated your wePresent to latest firmware, it may happen that some new options are 'greyed out' in the Admin web page. If you experience this, then most likely your unit is built with an older hardware configuration than which is current in the market for that model.
Example: In summer 2017 we introduced 5GHz WiFi on the new WiPG-1000-P hardware. Simultaneously with release of the new hardware, we introduced a new firmware with lot of new features (Airplay, Plug&Show, Background Change etc.) for the 'general WiPG-1000'. This means that any existing WiPG-1000 unit can be upgraded with latest firmware to add all latest features. The only thing it will not be able to add is a change in hardware! So, in the mentioned example the upgraded unit will have all latest features, but will be lacking the 5GHz WiFi adapter. That option will thus be unavailable in the Admin page.