Problem with ASIC Blades not connecting

[btcapparel]

Hi
i could do with some help my friends
I recently bought 3 blades from the group buy
they arrived last thursday and since then i have been ripping my hair out
They turn on and have all O's on the screen
But they dont seem to be hashing
I have attempted to set up as according to the guide in the forums
But soon as i change the settings all the 0's turn to x's and it wont connect
i have tried 5 different power supplys
using a xover cable direct to my router and through a switch
do i need to use a straight network cable?

[underachiever]

You don't need a crossover cable.  Though that shouldn't matter if your switch is auto-sensing.

Does your PC and the blade have the same IP address set for the gateway?  If your PC can access the internet that one is correct.

[Ridicuss]

Dont forget to set up stratum proxy if you are trying to connect to a pool that needs stratum

[Trongersoll]

did you remember to change the IPs of the miners?