Q: Wi-Fi Problem iPhone 6

Did you already reset the router?

More troubleshooting can be found here: Recommended settings for Wi-Fi routers and access points - Apple Support

Below is a User Tip about Wi-Fi issues. Suggest starting from the top and working down. Maybe one of them will help.

1) Perform a Forced Restart:  Hold down the Home and Wake/Sleep buttons at the same time for about 15-20 seconds until the Apple logo appears. Allow device to restart.

2) Reset Network Settings:  Settings > General > Reset > Reset Network Settings. Rejoin the Network again.

3) Reboot Router/Modem:  Unplug from power for 2 minutes and plug again. Update Router Firmware (check manufacturer’s support website for a newer FW). Also try different bands (2.4 GHz and 5 GHz) and different bandwidths (20 MHz recommended for the 2.4 band).

4) Change to Google's DNS:  Settings > Wi-Fi > Click on the Network, Delete all numbers under DNS and enter 8.8.8.8 or alternatively 8.8.4.4

5) Disable device prioritization on the router if this feature is available. Also disable any VPN apps and test Wi-Fi again.

6) Determine if other Wi-Fi devices on network are working well (other iOS devices, Macs, PCs).

7) Try device at another Network, i.e., neighbors’, public coffee house, etc.

8) Backup and Restore the Device using iTunes (ask for additional for details if desired).

      https://support.apple.com/en-us/HT201252

9) Go to an Apple Store for hardware evaluation.

User Tip:  https://discussions.apple.com/docs/DOC-9892

Does this happen with any Wi-Fi network connection, or just at home?

FFPATRICK1 wrote:

Hello elcpu,

Thanks four your response. I know this tips but they did not solve my problem.

 

Hi FFPATRICK1. Bear with me but did you really try all 9 steps and the options listed within?

And if so what did the Apple Store Genius say?

Did you check the settings for your Wi-Fi network?

Recommended settings for Wi-Fi routers and access points - Apple Support

Did you turn off the Wi-Fi Assist feature in the Cellular Data Settings?

If this only happens when connected to your Wi-Fi network at home,  some of the router settings might be responsible for that. But, to be sure that this is not hardware related, get the phone and it's Wi-Fi tested by Apple or an Apple Authorized Service Provider next to your place.

Start a service request

Find an Apple Authorized Service Provider

Make an Apple Store appointment

FWIW, I had issues with a certain brand of routers that had worked ok in the past, I even had the router replaced in warranty. After much testing I ended up buying a different brand and my issues were resolved.