Stack failure after IOS upgrade - 2960xr

[mhumphries73]

i have a 2960XR stack with 2 members.  my current IOS =c2960x-universalk9-mz.152-4.E3.bin  last night i attempted to upgrade to c2960x-universalk9-mz.152-6.E.bin  and I found that the system would not allow any clients to connect ( topic for another discussion :) )  so i went back to the original IOS but now my stack will not load.  

sh switch detail
Switch/Stack Mac Address : 00da.553b.9200
H/W Current
Switch# Role Mac Address Priority Version State
----------------------------------------------------------
*1 Master 00da.553b.9200 15 4 Ready
2 Member 0000.0000.0000 0 0 Provisioned

Stack Port Status Neighbors
Switch# Port 1 Port 2 Port 1 Port 2
--------------------------------------------------------
1 Down Down None None

The stack cables were fine before the IOS upgrade.   Both switches have the same IOS.  i checked platform manager version and it matches exactly.  i am not sure what else to try. any ideas would be greatly appreciated.

[Reza Sharifi]

On the master switch try and re-provision the member again and reboot the stack.

2 Member 0000.0000.0000 0 0 Provisioned

HTH

[mhumphries73]

so yesterday, i rebuilt the entire stack,  in fact i even went so far as to move the stack modules to 2 new switchs and completely rebuild the config.  when i first connect the stack cables everything comes up fine and they connect and tansfer all of the data as expected.  however when i reboot the switches the stack fails.  any ideas