Symptoms
- Phone takes 10–30 seconds or more to join a familiar Wi-Fi network
- Shows 'connecting' for an unusually long time
- Other devices connect to the same network instantly
- Happens at multiple different known networks
Likely causes
- CommonToo many saved Wi-Fi networks slowing the connection processThe phone checks through a long list of saved networks, which can add delay.
- CommonRouter or access point slow to respond to new connectionsAn overloaded or older router can take longer to hand out an IP address to reconnecting devices.
- PossibleAutomatic network switching between Wi-Fi and cellular still finishingSome phones intentionally delay switching to Wi-Fi to confirm it's a good connection first.
- PossibleWi-Fi Assist or similar feature causing a handoff delayFeatures designed to seamlessly switch between cellular and Wi-Fi can add perceived delay.
- Less commonWi-Fi chip needing a resetA persistent Wi-Fi chip issue could cause slow connections across all networks.
What to do
- Go to Wi-Fi settings and remove old, unused saved networks to shorten the list.
- Restart the router at the location where the delay happens most.
- Restart the phone to refresh its Wi-Fi connection process.
- Check if Wi-Fi Assist (iPhone) or a similar smart network switching feature is causing a deliberate delay, and consider toggling it off temporarily to test.
- Update the phone's software.
- Check the router's firmware for updates through its admin page or app.
- Test connection speed to a different, less-used Wi-Fi network for comparison.
- If slow connecting happens across multiple different networks even after cleanup, a factory reset can rule out a deeper software issue.
When to call a pro
If Wi-Fi connection remains slow across multiple different networks after cleanup and updates, a technician can check the phone's Wi-Fi hardware.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.