When Hardware BP fail's ?

[qkumba]

I agree with Kerlingen's suggestion that a different code path is taken. In that case, it's not that the hardware breakpoints are not working, but that the addresses are never reached. You can test this by breaking at OEP+next instead, you will probably find that it works on both machines. If so, then it confirms that the environment is different between the two machines. It might be the presence or absence of other software, for example missing DLLs or similar.
So, try the OEP break and tell us what happens.