As SimonB says, Berkeley have a planned outage every Tuesday (~6pm our time), usually coming back online a few hours later. Of course, connections are slow and/or unreliable afterwards for a while because of the increased traffic caused by a backlog of WUs waiting to be reported. So any connection issues around this time are normal.
	
		
			
		
		
	
				
			 
	 
  
 
		 
 
		



 
 
		

 
 
		 
 
		