Wi-Fi is Slow on iOS 8.1.3

Originator:sethfri
Number:rdar://19786323 Date Originated:02/10/2015
Status:Insufficient information Resolved:No
Product:iOS Product Version:8.1.3
Classification:Performance Reproducible:Always
 
Summary:
Since upgrading to iOS 8.1.3, my Wi-Fi has been incredibly slow no matter which network I am connected to. Additionally, my computers connected to the same networks are still blazing fast. When I turn Wi-Fi off on my phone, the same pages/videos load quickly over LTE.

Steps to Reproduce:
1. Load a web page or watch a video while connected to Wi-Fi on iOS 8.1.3

Expected Results:
Wi-Fi should be roughly the same as on my Mac, or at least the same as on iOS 8.1.2

Actual Results:
Wi-Fi has incredibly slow performance on iOS 8.1.3

Version:
iOS 8.1.3

Notes:


Configuration:
iPhone 6 64GB Verizon, using Wi-Fi

Comments

Apple Developer Relations

Engineering has requested the following information in order to further investigate this issue:

Can you please capture and attach Wifi logs for us?

https://developer.apple.com/bug-reporting/ios/wi-fi/

WiFi Logging Instructions:

Use the attached mobile profile (MegaWifi Profile.mobileconfig) to enable WiFi logging.

  1. Email the attached file MegaWifi Profile.mobileconfig to an email account on your iDevice.

  2. Open the email and tap on the profile to install it.

  3. Reproduce the problem.

  4. Go to Settings > WiFi > Diagnostic Mode > Enter a name and tap Save Logs.

  5. Sync the iDevice to iTunes on your host computer.

  6. Retrieve the log files from your computer and attach them to the bug report.

Log files can be found in the following locations:

~/Library/Logs/CrashReporter/MobileDevice/[Your Device's Name]/

and...

~/Library/Logs/CrashReporter/MobileDevice/[Your Device's Name]/WiFi

Note: You can also expose the hidden Library folder under ~/ or /Users/[Your User Name]/ by holding down the option key in the Finder while clicking the Go menu.

Hold down the option key then select Library in the Go menu. Once you see the Library folder, double-click on Logs > CrashReporter > MobileDevice > [Your Device's Name].

Please collect all of the recent files in the WiFi directory, the com.apple.driver.AppleBCMWLANCore0 folder and any files in this directory that start with com.apple.networking.

Select all of these files, compress them into a single file archive and attach them to the bug report.

  1. Please also note the time the issue occurred (date and time stamp).

--- Disabling WiFi Logging ---

To stop logging, visit to Settings > General > Profile > and remove it.

Note: Leaving logging enabled can have a significant impact on performance. Once you've completed the process steps outlined above, you should remove the profile.

Wi-Fi Questions:

  1. Access Point/Router:

  2. Make:
  3. Model:
  4. Firmware Version: 
 - FCC ID of Access Point/Router: 

  5. Hardware Rev (only needed if there is no FCC ID).
  6. Does this problem occur if the AP/Router is rebooted?
  7. When was the last time the AP/Router firmware was updated?
By sethfri at June 3, 2015, 10:51 p.m. (reply...)

My Reply

Don't see this behavior anymore on iOS 8.3

By sethfri at June 3, 2015, 10:51 p.m. (reply...)

Please note: Reports posted here will not necessarily be seen by Apple. All problems should be submitted at bugreport.apple.com before they are posted here. Please only post information for Radars that you have filed yourself, and please do not include Apple confidential information in your posts. Thank you!