I have 2 Slingbox HD Pros which have worked flawlessly for nearly 3 years. Verizon recently upgraded my router to the above model, and so I performed factory resets on the 2 boxes. Now they work just fine on my internal network (PC and WD Media players) but will not work on iPad or iPhone apps connected to the same network. I set both boxes up for port forwarding, and assigned each box a unique port. I used the Slingbox site to test the internet connectivity on each box. As soon as each box received a positive result, neither box could get a connection on my internal network. No internet connection was available either. I removed port forwarding on one of the boxes, and it was once again able to be connected and viewed on the internal network. I played around back and forth and essentially, whenever port forwarding was enabled, I could no longer connect to the Slingbox. Removing the port forwarding restored the connection, but then my box was not configured for internet viewing. I called Slingbox support and they confirmed that all tests on their end were showing correct configuration of both boxes. I have now placed one of the boxes in the DMZ. It passes the Slingbox internet viewing connectivity test and, unlike before, I can now still view it on my internal network. I can not, however, access the box from my Apple apps, nor will a PC outside of my network allow me to connect to it either. It thinks about it for a while, but ultimately can not establish a connection. Has anyone else had a similar problem? I changed the firewall settings on the router to minimum, but it didn't make any difference. This is my second GEN3 router. I persuaded Verizon to take the first one back because it may be faulty, but this one has exactly the same issues. Does anyone think that there may be a basic incompatibility issue between the Slingbox and this model router? I have tried everything and am running out of ideas. Thanks.