Old version of rtp? where?

I installed the new version of QNXRTP (With Patch A ) and now my network
card cannot connect to the net. I installed and removed the first version
dozens of times, and now the new version cannot connect…

Where is a original version of the QNXRTP (Pre-Patch A) to download?
I have to see if the new version is the problem…

Thanks.