Possible Reasons for High Bandwidth Occupation of the Server:
The frequent access of the user to the service causes large bandwidth occupation.
Network traffic is caused by malicious viruses and Trojans. Sometimes three-party malicious programs may disguise in svchost.exe or Tcpsvcs.exe of the operating system, causing high bandwidth occupation.
Windows services (update service, etc.) may occupy higher network traffic.
View the occupation by the process of bandwidth through Windows Resource Monitor:
Open the Task Manager -> Performance -> Resource Monitor -> Network in Windows 2008 R2, as shown below:
Open Task Manager -> Performance -> Resource Monitor -> Network in Windows 2012 R2, as shown below:
If the process is a normal service process and high client traffic results in high bandwidth usage, please consider to purchase more bandwidth as appropriate.
If the process is a name suspicious process, please stop the process directly, or use professional anti-virus software to observe the server behavior after virus killing.
If your problem still can not solved, please submit open ticket to us.