I have changed network cable and port.
It happens to more than one pc running the same OS and drivers. Other pcs are on different network/VLAN.
OS:Windows 7 pro sp1
Current Driver date: 7/26/2016
Driver version: 18.104.22.168
1. Are you using an on-board NIC?
Yes, onboard NIC.
2. Is it happening before?
Yes, happens frequently.
Noticed latency on a few workstations , each time the NIC found with a large number of discards and errors.
3. What steps have you tried so far to fix the issue?
Originally rebooted workstations to resolve issue before spotting errors on NIC. Found that running the INTEL diagnostics fixes latency issue, reboot not required. Passes on all diagnostics - Connection, Cable and hardware. Will need solid proof on root cause because of rigid change control process, nothing else changed/modified.