the 9.16 Test Server has been temporarily shut down to perform some fixes:

-Fixed the reloading indicator when watching replays.
-Fixed turret rotation near objects
-Fixed the display of translucent foliage when selected in the menu.
-Fixed the FPS drop when switching tabs in the window settings.
-Fixed WoT unexpected self start after a closing game

They haven’t*said a word of when it’s supposed to be back.