Start with the simple checks. Change one thing at a time so you can tell which step helped.
Walls, distance, interference and router placement can weaken Wi-Fi before it reaches a far room. First, note what changed recently and whether the same issue affects another device. This helps separate a device-specific fault from a wider network or service issue.
Troubleshooting steps
Check the basics
Compare the signal in the problem room with the signal near the router. After each change, repeat the action that originally failed and give the device a moment to reconnect or refresh.
Review the settings
Move the router to an open, central, elevated position if possible. After each change, repeat the action that originally failed and give the device a moment to reconnect or refresh.
Test one change
Test the room with a wired connection or another device to isolate Wi-Fi from broadband. After each change, repeat the action that originally failed and give the device a moment to reconnect or refresh.
Confirm the result
If needed, compare a mesh node or access point placed between the router and the room. After each change, repeat the action that originally failed and give the device a moment to reconnect or refresh.
Helpful note
A speed test in several rooms at different times helps reveal whether the issue is coverage or a wider connection problem.
When to get more help
If these checks do not resolve the issue, contact the relevant device maker, internet provider or app support team. Include the exact model, software version, any error message, what you have already tried and when the problem began. Avoid sharing passwords, verification codes or private account details in a public forum.
For equipment that is hot, damaged, wet or making unusual electrical sounds, stop using it and seek qualified support. Do not open power supplies, batteries or mains-powered equipment.
Settings and menu names vary by model and software version. Use the manufacturer's current instructions for device-specific steps, and back up important files before making changes that could remove data.