Slow Wi-Fi after waking from sleep on MacBook Pro Retina Mid-2014

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Slow Wi-Fi after waking from sleep on MacBook Pro Retina Mid-2014

I have noticed that I have slow network access (not just Internet, but local network) after waking the computer from sleep. I am connecting to an 802.11n Time Capsule (2011?) The only thing that seems to cure it so far is a reboot. Disabling en0 and rebooting Time Capsule doesn't seem to help at all. Is anybody else seeing this issue or have any idea how to troubleshoot? My total throughput when this symptom is experienced is like ~120KB/sec combined. Network Utility claims I have a 450Mbps connection. FWIW, paying for 200Mbps service from TWC.

Message was edited by: dahveed311 Adding OS X version (10.10.3)

MacBook Pro with Retina display, OS X Yosemite (10.10.3)

Posted on Jun 2, 2015 10:23 PM

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Linc Davis

Level 10

209,547 points

Jun 3, 2015 7:12 AM in response to dahveed311

Please read this whole message before doing anything.

This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.

The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, by a peripheral device, by a font conflict, or by corruption of the file system or of certain system caches.

Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards, if applicable. Start up in safe mode and log in to the account with the problem.

Note: If FileVault is enabled in OS X 10.9 or earlier, or if a firmware password is set, or if the startup volume is a software RAID, you can’t do this. Ask for further instructions.

Safe mode is much slower to start up and run than normal, with limited graphics performance, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal startup may also be somewhat slow.

The login screen appears even if you usually login automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.

Test while in safe mode. Same problem?

After testing, restart as usual (not in safe mode) and verify that you still have the problem. Post the results of the test.

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