Quick Answer
For a shared flat or res where noise and others' sleep matter, upgrade your mesh Wi-Fi (add a node or move to Wi-Fi 6) if coverage is the problem but the system still works - a third node often costs R1,500-R2,500. Replace the whole kit if it is an old Wi-Fi 5 system that cannot deliver the speed or low latency that a shared flat or res where noise and others' sleep matter needs.
Diagnose The Real Problem
First work out whether you have a coverage gap or a speed limit. For a shared flat or res where noise and others' sleep matter, run a speed test in the trouble spot: if speeds are fine close to a node but drop in dead zones, you need more coverage, not a new system. If speeds are low everywhere even near a node, the kit itself is the bottleneck.
When To Upgrade (Add A Node)
If the mesh works but a room lags, adding a node (R1,500-R2,500) usually fixes a shared flat or res where noise and others' sleep matter far cheaper than replacing everything. Place it halfway between the weak spot and the nearest strong node, on a shelf rather than the floor, and use a wired backhaul if you can for the steadiest result.
When To Replace The Kit
Replace if your mesh is an ageing Wi-Fi 5 system that caps speeds or adds latency that a shared flat or res where noise and others' sleep matter cannot tolerate. A modern Wi-Fi 6 mesh handles more devices and lower latency, which matters for online gaming. Budget R3,000-R6,000 for a capable two- or three-node Wi-Fi 6 kit.
FAQ
Should I add a node or replace my mesh?
Add a node if the system works but a room has a dead zone - it is far cheaper. Replace the kit if it is an old system that limits speed or adds latency everywhere, even near a node.
Will a new node fix lag in one room?
Usually, if the lag is a coverage gap. Place the extra node between the weak spot and a strong node, ideally with a wired backhaul. If speeds are low even near existing nodes, the kit itself is the issue.
Is Wi-Fi 6 worth upgrading to for gaming?
Yes, if you have many devices or need lower latency. Wi-Fi 6 handles congestion better and reduces lag versus older Wi-Fi 5 systems, which matters for smooth online gaming in a busy home.
speed test in the problem room before buying - if speeds are good near a node but drop in dead zones, add a node; if they are low everywhere, replace the kit instead.