Speed Up Slow Wi-Fi on MacBook | TP-Link Router
Compare your MacBook with other devices and locations, use macOS’s Wireless Diagnostics, and check TP-Link status without guessing the model. Written for your MacBook, with your TP-Link router in mind.

These steps are written for a MacBook running a recent macOS. The router-side fixes apply to every device on your network.
Slow pages or buffering on a MacBook may come from an app, the Mac, weak Wi-Fi in one room, or the internet service. Compare another device and test near the TP-Link router before changing settings.
macOS labels vary by release. Keep the Wi-Fi password before forgetting a network, and test one change at a time.
Check the Internet/WAN status light or the TP-Link Tether app. Light patterns and router sign-in addresses vary by model; use the label or manual for your exact router.
Troubleshooting steps
Find the scope of the slowdown
Use the same task and location for each comparison.
Check macOS connection and workload
Use built-in macOS views before changing advanced settings.
Run Apple Wireless Diagnostics
Wireless Diagnostics analyzes the connection and can offer possible causes without changing network settings, according to Apple. It is a useful diagnostic—not a guarantee that every provider or app issue will be found.
Compare coverage and household activity
The MacBook’s result can vary with distance, barriers, the selected network, and network load. A relocation test is safer than adjusting radio settings at random.
Check the TP-Link router by exact model
TP-Link status pages, lights, sign-in addresses, firmware, and Tether compatibility differ by product, hardware revision, and region. Avoid generic light-color explanations or a guessed admin address.
Try later Mac network changes carefully
Do not delete the network or reset macOS settings until the comparisons point to the MacBook and easier steps fail.
Confirm and escalate
After each change, rerun the same task from the same location and compare the result. Check again in the room and at the time the slowdown normally occurs. Contact Apple or your IT administrator if the Mac is slow on several networks while other devices are fine; contact TP-Link for model-specific router guidance; contact the ISP if several devices or wired/router-side tests remain slow. Provide model and software versions, test times and locations, and what changed. Do not share passwords or verification codes.
Frequently asked questions
Does Wireless Diagnostics fix the Wi-Fi automatically?
No. Apple describes it as analyzing the connection and presenting detected issues and possible solutions. It does not change network settings.
Why does the MacBook improve when I move nearer the router?
That comparison suggests the wireless path or location matters. Try a more open router position and ask TP-Link about coverage options for your exact model before buying additional equipment.
Should I reset the router because one Mac is slow?
Not before comparing another device and location. A one-device symptom calls for Mac-side checks first; factory-resetting the router can erase the whole network configuration.
Sources
- Apple macOS User Guide, “Use Wireless Diagnostics on your Mac”: https://support.apple.com/guide/mac-help/use-wireless-diagnostics-mchlf4de377f/mac
- TP-Link, “TP-Link Tether”: https://www.tp-link.com/us/tether/
- TP-Link, “Support / Download”: https://www.tp-link.com/us/support/download/