So like many, ive had video stuttering issues during live and playback. After trying most everything. I think I found a fix. Atleast, this worked for me.
Set your routers 2.5ghz channel to channel 6. Once I did this, it cleared up the issues for me. I tried each channel and some were worse than others. But for me, channel 6 is the sweet spot for these cameras.
I also suggest the app “Wifiman” so you can see how many things are going on each channel and find the best one for your environment.