%static entry in use cannot remove

is this your problem ?

router(config)#no ip nat inside source static tcp 10.0.0.100 5555 interface FastEthernet0 5555 
router(config)#%static entry in use cannot remove

SOLUTION

XBOX 360 - port forward for cisco router

Xbox Live

TCP/UDP 3074
UPD 88 
TCP 80
TCP/UDP 53

and

Xbox Connect

TCP 8602

IP Xbox - 10.0.0.4
Internet Interface - FastEthernet0

router> en

router#configure terminal

router(config)#ip nat inside source static tcp 10.0.0.4 8602 interface FastEthernet0 8602 

router(config)#ip nat inside source static tcp 10.0.0.4 3074 interface FastEthernet0 3074

router(config)#ip nat inside source static udp 10.0.0.4 3074 interface FastEthernet0 3074 

router(config)#ip nat inside source static udp 10.0.0.4 88 interface FastEthernet0 88 

router(config)#ip nat inside source static tcp 10.0.0.4 80 interface FastEthernet0 80 

router(config)#ip nat inside source static udp 10.0.0.4 53 interface FastEthernet0 53 

router(config)#ip nat inside source static tcp 10.0.0.4 53 interface FastEthernet0 53 

router(config)#exit

router#wri