For me, after forwarding all ports, and selecting Notify Surveillance Centre, the alarms weren't working until I both rebooted the NVR set up email alerts too. No idea why.
But I've been generally having a lot of fun trying to get the Hikvision NVR (7608) to behave itself. I note that my firmware is 3.4.1, and according to others 3.4.2 is available but when I click update in the NVR config page it tells me I have the latest firmware. When viewing the NVR directly on a monitor, I can see Motion Detection and Line Crossing are working and recording these events, albeit incredibly sensitively! Ports are all forwarded as required, NAT turned off, and all ports can be seen from online.
That said, my problems have been as follows:
-Remote viewing worked from my mobile via the iVMS4500 android (added via HiDDNS), but regularly I would open the app, and the cams wouldn't be working and the connection seems to have been lost. So I'd go into Devices, select the NVR and click Start Live View and it all starts working again.
-Alarm notifications weren't working at all. I'd followed all the online guides, but nothing ever appeared, despite the NVR regularly flagging up detected motion. Following setting up email notifications too, and rebooting the system in the process, notifications have started coming through although it seems to be for every past event that I wasn't notified about, so will see if this actually starts working properly.
-On the notifications that I do receive, on the iVMS4500 HD app, if you click Live View or Remote Playback, nothing happens, nice little app bug. On the regular iVMS4500 app the buttons do take you to the correct part of the app at least.
-On the iVMS4500 app, when I click Remote Playback following an Alarm, it can't load the camera. The IP shown on the camera on that screen is my LAN IP, wondering if this the problem when I'm reviewing over the WAN?
-If I load Remote Viewing on my HiDDNS connected NVR it only seems to load the first day that I plugged the NVR in, and I can see the recordings from that day fine, but when I try and scroll forwards to other days (such as for a few mins ago when the alarm was triggered!) it just says playback finished and returned back to showing that first day.
If anybody else has experienced any of these problems and knows of the fix please let me know!!