Have a look whenever you want to, & get signal in the rooms that never had it. IP cameras, video doorbells & recording, plus Wi-Fi access points & hardwired data so the back rooms work like the front ones.

That’s the question worth asking before you buy a camera. Plenty of systems record something, but the footage is too soft, too dark or pointed at the middle of the yard instead of the gate.
Cameras are only worth having if the footage would be useful to you, or to police, on the day you need it.
A single modem in the front corner of the house was never going to cover the back bedroom, the shed or the granny flat. Distance & walls beat bandwidth every time, & a faster plan changes nothing about either.
What fixes it is putting the signal closer to where you use it. We map where it drops off, install access points on proper cable & then test the result standing in the rooms that were the problem.
Which rooms drop out, & what you want to be able to see. We plan the positions with you before anything gets mounted, & we don’t arrive with a box already chosen.
Downlights, pendants, LED strip & outdoor lighting, planned around the room.
Extra points indoors & out, USB outlets & circuits to the shed.
Board upgrades, a safety switch on every circuit & room for solar or EV.
Ovens, cooktops, rangehoods, hot water units & pumps wired properly.
Hard-wired & interconnected, so the whole house hears it.
IP cameras, doorbells & signal in the rooms that never had it.
Mounted, aligned & tidied into a proper rack. We travel.
Lights, blinds & climate on one app instead of five.
Pump & heater wiring, pool lighting & the earth bonding that matters.
We check the board first, then install a charger sized to how you drive.

Tell us what you need & we’ll come back with a clear next step, not a number pulled out of the air.