[KB7468] Network speed performance issues after installing ESET Server Security for Microsoft Windows Server

Issue

  • Network speed degradation in high-speed network environments (for example, 10GbE) after installing ESET Server Security for Microsoft Windows Server
  • Network speed performance issues after system restart following installation

Solution

To address this issue, verify Receive Segment Coalescing (RSC) and Receive Side Scaling (RSS) are enabled on all network interfaces and other network components. To check the RSC properties of your network interfaces, use the Get-NetAdapterRsc PowerShell script.

Wireshark is known to interfere, effectively disabling RSC, which might also be a cause of this issue.