Cannot view my DVR on my Blackberry

[bechau 0]

I'm using HiView HV-04RD connected with Belkin N+ Wireless Router.

I forwarded port 80 for my DVR on the router settings.

On my BB, I'm using Mobile Jviewer 1.0 Pro.

 

I'm able to view my DVR with a PC outside of my network. However, when I tried it with my BB, it didn't work.

However, it worked when I tried view a friend's exact model DVR with my BB. He's not using Belkin router.

 

How do I resolve this? Thanks