We are currently setting up a grid at a second location, consisting of two SG110 and five SG5860 nodes. Since the first weekend in August, the number of errors on all nodes within the area of the four HICs (network communication 'receive') has been very high, sometimes exceeding 50,000 errors. The problem began on Sunday night/Monday morning, without any changes being made to the grid by us. No data is currently being stored on the grid; it is still under construction. We have been using a grid for several years, but we have not encountered this problem before. As a test, we rebooted one SG5860. The number of errors dropped significantly afterward. However, the number of errors is now gradually increasing again.