Speed Up Slow Wi-Fi on Android Phone | ASUS Router
Find out whether slow Wi-Fi is limited to your Android phone, its location, your ASUS router, or your internet provider, then test safe fixes. Written for your Android phone, with your ASUS router in mind.

Android menu names differ by brand; if a setting is hard to find, search Settings for its name.
Slow Android Wi-Fi can come from the phone, weak signal, household traffic, the ASUS router, or the ISP. Compare another device before changing settings. Have your Wi-Fi password ready before forgetting the network.
The admin page is at router.asus.com. If you use AiMesh, fix the main router first — satellite nodes just mirror its connection.
Troubleshooting steps
Find out whether the phone or network is slow
Try more than one app. If only one is slow, check that service rather than changing Wi-Fi. Then compare your phone with another device on the same network and in the same room.
Measure in comparable conditions
Run the same speed test twice in the same location. Briefly pause large downloads or backups if practical. Note the time and result; a test measures one route to one server, not every app or the Wi-Fi link alone. Compare with your plan details, not a single headline speed: the phone, test server, Wi-Fi signal, and other household activity affect results.
Check Android settings and background activity
Android menus vary by phone and version; use Settings search if needed. Confirm the home network, restart, and check for background downloads or backups.
If the problem follows the phone across locations, check for a pending operating-system update through the phone maker’s normal update screen. Menu names and update support vary by manufacturer. Avoid third-party “Wi-Fi booster” apps; they cannot change the provider’s available capacity and may request unnecessary access.
Check ASUS router status without guessing
ASUS app screens, tests, and indicators vary by model, hardware revision, firmware, app version, and setup. Do not assume one login address or light meaning.
Improve the connection before changing router settings
Distance, walls, floors, and objects can affect Wi-Fi. If the phone works better nearby, try a more open router position if the service connection allows.
Restart equipment safely and update only when appropriate
Check for an ISP outage first. For several affected devices, follow the ISP/ASUS restart instructions for your modem/router setup. A factory reset can erase network and provider settings; do not hold Reset to restart.
When to contact ASUS or your ISP
Contact your ISP if several devices are slow near the router, there is an outage, or repeated wired/router-side tests are below plan details. Ask about maintenance, modem/line signals, or a gateway test. Ask ASUS about Wi-Fi coverage if wired service is normal; contact the phone maker if only this phone is affected across networks. If only one app is slow, contact its provider.
Share test times/results, test method, phone model/Android version, location, and affected devices with official support. Never post passwords or verification codes.
Frequently asked questions
Why is the phone slower in one room?
If it works better near the router, signal conditions are a likely factor. Compare results before moving equipment or buying an extender.
Does mobile data prove the ASUS router is faulty?
No. Coverage, plan limits, and cellular congestion also affect mobile data, so it is only a comparison.
Confirm the fix
Repeat the same test after each change. Restore temporary VPN or paused activity; if the issue returns, share your device/location/time notes with support.
Sources
- Google Android Help, “Fix internet connection problems on Android devices”: https://support.google.com/android/answer/2651367?hl=en
- Google Nest Help, “Troubleshoot slow internet on Google Nest Wifi or Google Wifi”: https://support.google.com/googlehome/answer/6246489?hl=en
- ASUS Support, “How to update the firmware of your router to the latest version via ASUS Router App”: https://www.asus.com/support/faq/1045788/
- ASUS Support, “How to use the QIS (Quick Internet Setup) to set up Router”: https://www.asus.com/support/faq/1044663/