FastEthernet interface keeps losing the trunk config

   So we have FA0/13 configured to use our Aerohive wirless. But for the past week its been losing the turnk config and I have no idea why. Heres the config we have in the 3550 switch for that interface. This interface is trunked to all of our VLANs
interface FastEthernet0/13
switchport access vlan 100
switchport trunk encapsulation dot1q
switchport trunk native vlan 100
switchport mode trunk
no ip address
spanning-tree portfast
Any ideas as to why it keeps dropping the config?
Thanks

Mike
I don't know why it is doing it (maybe a bug) but i would modify the config ie.
1) if it is a trunk remove the "switchport access .." line
2) if you are sure it cannot create a loop then you should change "spanning-tree portfast" to "spanning-tree portfast trunk".
If you are not sure then there should be no portfast command on that port.
Then see if this helps.
Jon

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