The most common call root cause often is not a security system issue at all; rather, changes with the network, router, or app/software results in remote access or remote viewing of video breaking
This item is interesting to see be the #1 issue. Cellular access is, in many ways, a bane for our industry IMO. I have very few residential accounts I support but they are the primary users of cellular access almost exclusively. Cell signal doesn't work in Nowhere, ND? Service call. Firewall at some completely unrelated site is blocking Wifi access? Service call. Forgot your password since it is usually saved in the app? Service call. New phone? Service call. Bandwidth not sufficient on 3G? Service call.
For integrators specialized in small business and residential I can see this as being frustrating as all of the above is in no way their issue. It's frustrating for me and I only support around a half dozen sites using mobile access.
Most of the other items are ubiquitous across all segments - forgotten passwords, forgetting how to export video, etc. There is mammoth turnover in protective services staffing. I'd be interested to hear how everyone is addressing these issues.