One of our hosting facilities has scheduled two maintenance windows where additional bandwidth capacity will be added and some routine upgrades of routers will occur. These windows will occur on May 22nd between 9AM and 1PM GMT, and then on May 23rd between 8AM and 10AM GMT.
Each of these windows should not produce any loss of connectivity, and should take less than 20 minutes each to complete. During the windows, please plan for the unexpected and try to schedule your usage accordingly.