Q: iOS 9.3.5 Problems

Hi

Follow the steps here:

• If your iPhone, iPad, or iPod touch won’t connect to a Wi-Fi network - Apple Support
• Connect to Wi-Fi on your iPhone, iPad, or iPod touch - Apple Support

Below is a User Tip about Wi-Fi issues. Suggest starting from the top and working down.

1) Restart you device. If a normal restart does not help try holding down the Home and Sleep buttons at the same time for about 15 seconds until the Apple logo appears.

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). Channels 1, 6 or 11 are 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. Try restoring as New first and testing it. If ok try restoring the backup (the backup could be corrupted).

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

9) Go to an Apple store for hardware evaluation. The Wi-Fi chip or the antenna could be defective.

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

I have the exact same issues with wifi upon moving to 9.3.5.  I have tried all the typical fixes - hard reboot, resetting network settings, etc., and nothing worked. 

Apple's recommended settings for Wi-Fi routers and access points are detailed here:

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

If the issue persists after following the advice provided in Apple's support articles (including those linked in my previous reply), I suggest that you contact Apple Support or make a Genius Bar reservation with a view to having your iPhone checked and, if recommended by Apple, serviced (whether under warranty or via chargeable repair service):

• Contact - Official Apple Support
• https://twitter.com/applesupport
• http://www.apple.com/retail/geniusbar/

To check your warranty status:

• https://checkcoverage.apple.com/

I've tried all of these steps.  We have several iPhones in the house and only mine is affec and it happened as soon as I upgraded.  Seems too much of a coninidence that it is a problem with my phone and not a bug of the upgrade but I will make a Genius Bar apt I guess. 

Hi,

i'm from Germany and i have the same problem, with my iPhone 6.

The wireless reception is at most 2 of 3 bars, mostly just 1 bar. The download speed is also extremely slow. None of the proposed solutions helps somewhat!