OPT1 interface is down but openvpn tunnel is up with ip address but OPT1 no IP

[Rango]

Help guys. I can't figure this out. I followed pia openvpn tutorial and my OPT1 interface is down but openvpn tunnel is up with ip address but OPT1 no IP.

Setup pia vpn. PIA tunnel goes up, stays up, interface shows down, doesn't get ip address in interfaces. Openvpn has PIA ip address in openvpn status. Logs show connected and disconnected. Can't browse internet as no ip on interface i assume. Basically looks like my routing NAT is not working or pia won't assign ip address or ?

Guide i used and followed.

https://forum.pfsense.org/index.php?topic=76015.0

[Rango]

I rebooted the pfsense and got this error right after it initiated vpn

openvpn[15657]: PID_ERR replay-window backtrack occurred [2] [SSL-0] [00_11178>>>>>>EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE] 0:460 0:458 t=1457588835[0] r=[-1,64,15,2,1] sl=[52,64,64,272]

[PF64]

I'm getting the same error, I'm not sure why either.  :-\