iOS 13.6.1 Wi-Fi network issues

Reset Network Settings: Only network settings are removed.

• When you reset network settings, previously used networks and VPN settings that weren’t installed by a configuration profile or mobile device management (MDM) are removed. Wi-Fi is turned off and then back on, disconnecting you from any network you’re on. The Wi-Fi and Ask to Join Networks settings remain turned on.
• To remove VPN settings installed by a configuration profile, go to Settings > General > Profiles & Device Management, select the configuration profile, then tap Remove Profile. This also removes other settings and accounts provided by the profile. See Install or remove configuration profiles on iPhone in this guide.
• To remove network settings installed by MDM, go to Settings > General > Profiles & Device Management, select the management, then tap Remove Management. This also removes other settings and certificates provided by MDM. See “Mobile device management (MDM)” in the iOS Deployment Reference.
• Reset your Network Settings. Tap Settings > General > Reset > Reset Network Settings. This also resets Wi-Fi networks and passwords, cellular settings, and VPN and APN settings that you've used before.

Reset All Settings: All settings—including network settings, the keyboard dictionary, the Home screen layout, location settings, privacy settings, and Apple Pay cards—are removed or reset to their defaults. No data or media are deleted.

1. Reset All Settings: Return iPhone settings to their defaults - Apple Support:- Return iPhone settings to their defaults
2. You can return settings to their defaults without erasing your content.
3. If you want to save your settings, back up iPhone before returning them to their defaults. For example, if you’re trying to solve a problem but returning settings to their defaults doesn’t help, you might want to restore your previous settings from a backup.

As it’s an iPhone 7 see this Apple support link—>https://www.apple.com/support/iphone-7-no-service/

I have the same "no service" issue after updating to 13.6.1and my iphone 7 is model A1660. I'm on hold with Apple tech support now

After trying everything under the sun, the one thing that finally worked for me was doing a hard reset, found on this page

http://www.iphonehacks.com/2019/09/fix-ios-13-wifi-not-working-slow-dropping-out-issues.html:

• On an iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone XS, iPhone XS Max, iPhone XR, iPhone X, iPhone 8, and iPhone 8 Plus, press and quickly release the Volume Upbutton. Press and quickly release the Volume Down button. Then press and hold the Side button until you see the Apple logo.
• On an iPhone 7 or iPhone 7 Plus, press and hold both the Side and Volume Downbuttons for at least 10 seconds, until you see the Apple logo.
• On an iPhone 6s and earlier, iPad, or iPod touch; press and hold both the Home and the Top (or Side) buttons for at least 10 seconds, until you see the Apple logo.
• On an iPad Pro 11-inch or iPad Pro 12.9-inch, press and quickly release the Volume Upbutton. Press and quickly release the Volume Down button. Then press and hold the Power button until the device restarts.

My iPhone 7 cannot use cellular data after the update either. It said I HAD to update in order to access cellular data, but now my phone is fully updated and I’m still getting the same message. My phone’s cellular data isn’t recognizing the update. I’ve tried restarting my phone and all sorts of stuff.

Updated my iPhone 7 to 13.6.1 because I received a message that told me I had to in order to use cellular data. Now I can only use WiFi and cellular data won’t connect. Always says searching and then no connection. How do I fix this?

I’ve been getting signal issues since the update but the worst thing I’m finding is that my phone keeps restarting....at least 5 times a day!! Anyone else finding this or is it just me? I’ve just basically had to do a full restart! Hopefully it helps.

Same issue as others. Upgraded to 13.6.1, and immediately could not make a useful phone call. Call will not go thru, or it goes through with poor audio quality and then randomly and abruptly disconnects. Dang, it's the most basic function of the device and it doesn't work. iPhone Xs. solutions offered on this page to now have not resolved the issue.

I’ve been getting signal issues since the update but the worst thing I’m finding is that my phone keeps restarting. after 20 minut Anyone else finding this or is it just me? I’ve just basically had to do a full restart! Hopefully it helps.

Hi SravanKrA

Thanks for trying to help but Have done all kind of reset and it’s not working and mobile is just to surf internet and can’t connect with mobile networks seems something with new update which hinders with the network looks like Apple messed up Badly with this updated and its like they achieved their 2 trillion target and now tell us FO and ditching jokes apart Apple should look into this at an urgency.

Resetting network settings didn't work for me.

I also tried switching sims with a phone that was not upgraded to 13.6.1 yet (both sims same carrier). Interestingly the SIM seems to be the issue now (Other sim worked on the 13.6.1 phone. "Poisoned" SIM does not work on the 13.6.0 phone)

After debugging with the support of our carrier we found out that the now failing SIM is very old (over 6 years). Theory is it is no longer supported 🤷🏻‍♂️.

Getting a new one tomorrow and will post here when I know more.

Replacing the SIM "fixed" the issue for us.

Of course I don't know if this is the same issue as for other people. For us the old SIM did stop working right after the software upgrade and nothing else unusual happened around that time. But that could just be coincidence.

Did The 13.6.1 update on 11 Pro and not able to connect to WiFi. It will pick up the signal, but shows no internet connected. All other devices connected and working fine, including an iPad Pro 11 also upgraded to 13.6.1. Did all the resets and doesn’t fix. Haven’t noticed an issue with cellular as some others have reported.

I just started having similar issues with my wifi and it's draining my battery. My carrier is not the problem. I tried all of the above and nothing worked. My phone is still showing "no service" but I have all bars. My apps are updating but I'm not receiving calls or texts. Help! I have an Iphone 8.