Seems like I'm always writing to ask about Gizmo problems. I'm having the exact same problem as poster Thorolw back in May, except I have the aforementioned Samsung Galaxy S5:
"I have the exact same problem on the exact same phone. I had a Samsung S3 before and on that Gizmo worked like clockwork. I have not changed anything on the server, I just switched phones and downloaded the app. I can access the server via wifi only, outside the network it simply does not connect." [from this post:
http://yabb.jriver.com/interact/index.php?topic=88946.0]
I also had a (rooted) S3 that I could stream from with no problems, either on WiFi or on 3g/LTE. With the (unrooted) new phone, I can only get Gizmo to work on my home's WiFi network. Every time I try to connect outside my home WiFi, I get the dreaded "Error Communicating with Server." I've
--quintuple checked the Access Key
--tried changing the Access Key and then quintuple checked the new one when typing it into Gizmo (and the new Access Key works with my client laptop inside the home network, though I haven't tried it yet outside; it's worked before, so I'm guessing it still does)
--passed (repeatedly) the Access Key Test in Media Center
--Webgizmo works fine both in and outside my home network
--disabled my virus protection/firewall program (Vipre), to see if it made any difference (it didn't)
--double checked that there was an exception to all Media Center exe applications in Vipre (there were)
--double checked that there was an exception in Vipre to port 52199 (there was--as I noted above, Gizmo has worked on my S3 and on my earlier Droid X, for nearly 4 years; and I've always had these settings in place)
--Windows Firewall is disabled (because I have Vipre)
--have static IP addresses for all networked devices in my Netgear WNDR4500 router, if that makes any difference when connecting from the outside (I'm guessing it doesn't)
--have port 52199 forwarded in that same router
--have gone through everything in the J River
Network Access Wiki and found no problems when looking at Live Essentials (don't have it on) or the other troubleshooting options
It must be something with the new phone, but I've fiddled around with the network settings and found nothing. Does anyone out there having any suggestions here? I'm ready to throw the phone against the wall and/or pull my hair out, so frustrating has this been. What could be not allowing the access?
Thanks for any and all help!