I ran into a small issue the other day. I upgraded our network connections speed from our host, and I was not getting the speed I was suppose too. Turns out my ip-based switch port speed was throttled.
If you ever run into this change around the port speed on your router.
interface GigabitEthernet0/0 switchport access vlan 2 switchport mode access speed 100 duplex full
Notice the highlighted speed in the config.
corerouter#config t Enter configuration commands, one per line. End with CNTL/Z. corerouter(config)# corerouter(config)#interface GigabitEthernet0/0 corerouter(config)#speed auto ctrl+z corerouter#wr corerouter#reload