WiFi issues on 2017 MacBook Pro

Hey everyone.

I seem to be having issues on my new 15" MacBook Pro (2017) with the WiFi. I will be using the internet normally, and after a little while my connection stops working. I stay connected to the WiFi network itself, but the connection seems to hang and to fix it I have to turn WiFi off and back on again. This happens even after a fresh install of macOS Sierra with no external applications installed, and this problem does not occur on ANY of my other devices such as my iPhone 7 or iPad Air 2 on the same network.

I've tried running a network diagnostic, but it assures me everything is working fine. I don't know what else to do and so I'm hoping someone out there has dealt with the same thing.

Best regards,

Chance.

MacBook Pro (15-inch, 2017), macOS Sierra (10.12.5)

Posted on Jul 13, 2017 10:44 AM

Top-ranking reply

JoshuaKingDigitalNomad

Level 1

13 points

Posted on Jan 6, 2018 8:15 PM

If you have a USB-C dongle (adapter) plugged in for an external hard drive or HDMI cable, your WiFi will drop and a re-start may be required after unplugging the dongle. If you are using a dongle, this video will fix your WiFi disconnect issue.

FIX for USB-C DONGLES MACBOOK PRO - YouTube

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22 replies

Jan 14, 2018 11:47 PM in response to JoshuaKingDigitalNomad

I had been unable to reproduce this problem. But after reading your post I plugged in an external WD hard drive and poof! My wi-fi connection no longer transmitted data even though the menu bar showed me as connected. I think that you have diagnosed the problem correctly. It is related to plugging in certain USB-C devices. I haven't tried to reproduce by plugging in other devices, or combinations of devices. Apple..is there a problem???

Jan 4, 2018 8:27 AM in response to miikkafrompluto

The main Wi-Fi interference problem is in the 2.4GHz band.

If your Router is dual band, you can escape the issue by using its 5GHz band. If it does not have 5GHz, its time for a replacement or additional Router.

Your phone likely has both 2.4 and 5, so you can establish a reliable connection in the 5GHz band.

If you like, start a new thread and post a screenshot of holding down the Option key while clicking on the Wi-Fi Icon on the menuBar. the report looks like this old one:

chnce Author

Level 1

16 points

Jul 14, 2017 2:34 PM in response to chnce

I should also note that renewing the lease, changing DNS servers and getting a new IP have also not worked.

Sep 9, 2017 6:11 AM in response to chnce

I have the same issue but I have a 13" MacBook Pro (2017) with touch bar, I need help!

Sep 15, 2017 9:14 PM in response to chnce

Hopefully this will be resolved when macOS High Sierra comes out on the 25th, crossing my fingers this will fix the issue.

Sep 22, 2017 5:27 AM in response to chnce

Try waiting for MacOS High Sierra, it might fix the issue.

It will be out to the public September 25, 2017

jffluis

Level 1

4 points

Sep 30, 2017 11:34 AM in response to chnce

hey man. just bought my MBP Touch bar 2017 back in july and only today i found out abut this issue on a online game. this issue only affects me on games not on my daily job work.

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WiFi issues on 2017 MacBook Pro