ios 11 slow wifi speeds

Updated my 6s and now my WiFi speeds are at a crawl mostly under 25mbs in the same room as a laptop getting 75mbs download speeds.


I’ve done a Forced Restart

Toggled WiFi on/off

Forgotten WiFi networks

Reset WiFi networks

Turned off Location Services


Etc etc etc


The only thing I have done is reset the entire phone 📱


Anyone else reporting these issues?

Posted on Sep 20, 2017 11:19 AM

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Posted on Nov 22, 2017 5:14 AM

Try connecting to WiFi on the 5 GHz band instead of 2.4 GHz if your router has the option. This worked for me.


I had this same problem since I upgraded to iOS 11 on my iPhone 6S Plus. I tried everything suggested except for a full restore.


I was connected to my router via the 2.4 GHz band when having the problem. I would get >50 Mbps on my Macbook but <1 Mbps on my iPhone when running a speed test.


I instead connected my iPhone to my router's 5 GHz band and have consistently been getting >50 Mbps on my iPhone now and have had no problem with WiFi on iOS 11 since switching bands.


I hope this helps all of you.

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ios 11 slow wifi speeds

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