Consider reach and capacity together
Under comparable conditions, 2.4 GHz often travels farther through obstacles, while 5 GHz commonly offers more opportunities for higher data rates. Neither statement is a speed guarantee. A crowded band can be slow even with a strong signal indicator. Equally, a higher-frequency connection may become unreliable behind several walls.
Some older printers and simpler connected devices support only 2.4 GHz. A modern laptop may support several bands. Check the exact device specifications before disabling a router band. Also, 5 GHz Wi-Fi is not the same thing as 5G mobile service; a cellular subscription tells you nothing about a printer's wireless compatibility.
One shared network name is often intentional
Many routers use the same Wi-Fi name across several bands and support automatic selection. Keep the manufacturer's intended arrangement initially. Separate names can help with a focused diagnostic test, but also create extra saved profiles and manual choices. Apple recommends consistent network names across the bands used by its devices.
If a setup application specifically requires a 2.4 GHz connection, consult both the device and router instructions. Some systems provide a temporary compatibility mode. Avoid changing encryption, network name and password together just to enrol one device. Otherwise, it becomes difficult to know which change actually helped.
Compare performance where the device is used
Where the information is available, check the current band in the device or router connection details. Then compare the same task at the desk and nearer the router. Look for interruptions and response time rather than only a peak throughput result. A printer usually needs less throughput than a large file transfer, but still needs to remain consistently reachable.
Record successful settings before undoing a temporary experiment. An additional radio band or a larger number on the box does not fix poor placement. If both bands are weak at the working position, improving the location or adding an appropriately connected access point is usually the next useful investigation.
