After installing a new network adapter in a Linux server, users report sporadic and sluggish connections to hosted services. Upon inspecting the interface statistics, you notice an abnormally high count of discarded packets. Identifying the probable root cause of this issue is your next step. Which of the following should you investigate first?
Verify that the network configurations on the server are correctly assigned
Examine the physical cables for signs of damage or wear
Check for duplex mismatch between the network adapter and the corresponding switch configuration
Investigate a possible speed mismatch between the server's network adapter and the clients' adapters