Can anybody explain this?

Myself and a friend use Plusnet for our connections, mine is premier and his is plus, both are maxdsl 8Mb. We both want to use newsdemon (ND) for binary usenet.

Here is where we both are confused:
Using either mine or his Plusnet (PN) account at my house I have full access to ND on port 119.
Using his PN account at his house he can not connect to ND on any port but using my PN account he has no problems at all.

Just to re-word that to hopefully prevent any confussion...
For the 2 experiments at his house he used the same hardware, software and phone line the only thing different is the account at PN that he connected to.

Any helpful advice would be nice.

Probably best asked in the Plusnet specific forum.

sorry, I thought it was a technical question.

I'll ask it somewhere else then.

it is technical but its highly specific to one ISP and their port blocking / traffic shaping practicesand account types. So you are likely to do better in a forum full of plusnet users than one with a wide distribution of ISPs.