Need Help Please:

Set up my first Cube on Monday. It hashed away no problem until today it shutdown. I also received Cube #2 yesterday and set up. Both were working fine all night and this morning.

Got home and both cubes were shutdown and both went down at the same time. I figured out what caused them to shutdown. It was my network IP address changed. Not sure why but I am looking into that. The issue Cube 2 I finally got up and running. Cube 1 however is showing all X's. I have taken it apart and made sure everything is seated properly and tightened down the heatsinks (many were loose) put it all back together and still all X's. I even changed out PSU. One thing I forget to include I am running each cube on their own PSU. I have stuck any suggestions would greatly be appreciated.
PSU 1: Corsair 600w
PSU 2: Apex 500w

To be honest, I really don't know. I will look into the Wallet. Thank you.

Thank you. I went ahead and upped my current plan. I do appreciate your input.

Hey guys another Newb from Oklahoma. I started mining about 3 weeks ago as strictly a hobby. A quick question regarding exceeding internet usage: Have any of you exceeded your internet usage plan from mining bit coins? I just received an email from Cox stating I have exceeded my plan. I not sure what my next steps would be. I am looking at increasing my download but just curious what types of plans other miners are using and if they have had any similar issues? Thanks again.

First let me apologize if this has been posted already. I have tried searching the forum but I keep getting the
that I am searching to fast please wait 90 seconds. Now the newb question: I just started mining about 2 weeks ago solely for hobby. I just received an email from my internet provider Cox stating that I have exceeded my plan usage. I am curious as to what other forum users are currently doing to manage their internet plans? Specifically what plans and providers should I be looking into if I keep mining.?