Yes, I agree that it might be a hardware or a software issue too
Seriously though, if you're using the same exact port and cable for the two tests, because I assumed you were (I'm also assuming you have checked the system load, event log errors and io thrashing during the tests to ensure it's not something that's being reported or is unrelated), you could try rolling back the driver to an older version.
I had/have an issue with a wifi device that runs fine on a driver from 2014 but barely functions on the latest driver.
Outside of that, I agree with a new NIC. From experience when a NIC has issues, it usually means it's just going to be a pita again at some point.
Sent from my MI 5 using Tapatalk
Seriously though, if you're using the same exact port and cable for the two tests, because I assumed you were (I'm also assuming you have checked the system load, event log errors and io thrashing during the tests to ensure it's not something that's being reported or is unrelated), you could try rolling back the driver to an older version.
I had/have an issue with a wifi device that runs fine on a driver from 2014 but barely functions on the latest driver.
Outside of that, I agree with a new NIC. From experience when a NIC has issues, it usually means it's just going to be a pita again at some point.
Sent from my MI 5 using Tapatalk