Actually, as a freelance installer myself. Here's my sharing to everyone who is keen to install CCTV or IP Cameras. PS. I do not sell any IP Cameras, I do installation only.
Industrial practice, we always make sure our clients change their camera's password and writes down somewhere so that they will not forget.
Even if we need to setup the camera using our phone, we will in the presence of the owner delete off the camera from the app before we leave.
Everyone should take note that manufacturer uses the same password by default for all their cameras. YOU SHOULD INSIST TO CHANGE THE PASSWORD.
Next, as consumers, be fair to us installers, your router if faulty is of no fault of ours. If you need us to come back and re-configure, we have the right to charge.
Also, some cameras have poor compatibility with routers cos of their wifi module. One example I came across is vstarcam, one of their camera series' wireless module does not work well with starhub's issued D-link router.
While wanscam's camera can work without an issue with these routers. There is a good set of cameras from ezviz but only available via amazon, it is the same as Netgear's ARLO series, but with better battery life of 10 hours as claimed on paper specs. I have only hands on 1 unit so far, by a family staying in landed property. Camera is only 720P but resolution is good and stable connectivity and streaming. Hope Amazon launch here soon.
PM me if you need help with mounting and installing for all brands of IP Cameras.