I dunno is your RJ45 cable ok or not (i suppose it's ok), but i know that if you have wright ESN & Hash you will get calculated Skey.
So, to cut story - you don't have correct ESN (when using px65v5 you should invert it) !!!
Please, use my advice and use px75v1 (why it doesn't work? ) or px65v5 and reversed ESN code to get codes and then input them manualy in Papuas.
Like cobraro22 wrote in post above, this is how to reverse ESN which px65v5 calculates:
like this
ac5489b5 -> in papua u`ll wite b58954ac
it`s so easy
Then calc Skey.
Vodafone or T-mobile, it doesn't matter.