I was able to do more troubleshooting. The last version I had installed that worked was 5.5.83. I upgraded directly to 5.6.3 so thought 5.6.3 was the issue. However, I downgraded to 5.6.2, then 5.6.1 and finally 5.6.0 - all would fail to constantly connect through 4500. Whatever they introduced...
I have the exact same issue since updating to 5.6.3. The Android app no longer connects - everything else works though (connected from desktop, internet, LAN, 4G, etc). Have been emailing back and forth with HIKvision but they have been of little help. Anyone run into this and have a fix??
Thanks