After having to reformat my pc I continually have issues with my computer establishing a network connection when I log in at the beginning of the day. Sometimes it also occurs after my computer locks. When I log in and view the status of my network connection in the Network and Sharing Center it continually goes from an "Identifying" state to "Disconnected" state and back again. On a good day it may only take 5 minutes for it to finally connect to the network. The other day it took almost an hour before it finally connected.
When this initially began I started with the basic troubleshooting, restart and shutdown. The drivers are up to date. I've tried different Ethernet cables. I've tried different outlets in the walls. I've managed to deal with it till now, but future plans are requiring me to look more closely at this issue.