I have 4 Tapo 325WB cameras connected wirelessly to my Wifi Router. 2 are connected to the main router, and 2 via an extender (TP Link Archer C20). Currently neither has any micro SD card. I am planning to buy a VIGI NVR1108H-W 8 NVR with Antennae, and install a hard disk. I will go to individual camera settings and create a username and password for each camera, and then do a quick setup to add cameras to the NVR. Currently My house doesn't have wiring for a non wifi DVR, so my cameras are all working witelessly. My Q is that can I access the recordings of my NVR via the VIGI app? I think only the Micro Sd card recordings can be accessed online via the Tapo app. Currently not planning on the Cloud Storage plan.

My Qs are:

1. Will VIGI app give me near real time alerts of events on my phone, similar to what Tapo app does?

2. Can VIGI app access recordings of NVR after I click on an alert, and will I be able to playback events recorded on NVR HDD remotely? 

3. Will having 2 cameras on main router and 2 on the repeater cause any issues? The Wifi identifier Name and Password of main router and repeater are the same.