I am having a problem with my antminer,

Its a part of a network of 5 antminers all hooked up to my router.
I follow the instructions every tiime and it has worked for the other 4
I basically have to change the ip to 192.168.0.1 for it to connect to my regular routers settings but after that i change the settings to dhcp and everything is good to go.

this 5th antminer is the same up until i change to dhcp. I see it hashing on the pool but i am no longer able to connect to it using the ip address through my router or on direct connection..
I am literally doing nothing differnt then the others. It seems like the new one has a a newer os version, that is the only difference.

Currently it is hashing but i am un able to connect without resetting the whole thing....

any advice???