I have a similar problem, my connection disconnects for a split second saying 'Network cable unplugged' and reconnects, it does this a few times usually and then my whole connection is lost. If you do not notice an improvement with any of these settings, you may change it back to its original value (that you noted down). If it doesn't, try a different value and test - repeat for each item.

Change the value to one of the following, and then test if your connection improves or not.

Select this item (so that it is high-lighted) and then please note down its current Value - post this value.

Within this list, look for an item called something similar to Speed & duplex settings (the exact name will vary depending on your manufacturer).

In this new window, you should see a Property: list.

In the new window, press the Configure.

In the new window, right-click on your Network Connection and select Properties.

Click Start, select Run, type ncpa.cpl and press OK.

If you have your NIC setup to auto-sense/negotiate its duplex setting, this may be causing an issue. Sometimes as devices age, their ports lose certain functionality.

Local area connection not showing