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Slow Wifi on iPhone 6 Plus

Anyone experiencing really slow WiFi on their new iPhone 6 Plus? Mine is super slow. When I switch off WiFi, LTE works perfectly and very snappy. I didn't have any issues with my 5s and not having issues with my iPad Air. I doubt it's an iOS 8 issue because the 5s and iPad Air are running iOS 8. WiFi also works fine on my 13" MacBook Pro Retina. It's not a router issue. Any ideas??

Posted on Sep 19, 2014 8:09 PM

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191 replies

Sep 23, 2014 5:27 AM in response to Cmgunslinger

Omg here we go again. I have the first iphone 5 for 2 years thank god I still have unlimited data ,it has never worked on wifi. Apple gave me 4 new iphone in the first year it came out.. Was looking forward to the iphone6 coming out thought they would have fixed what ever was going on with the wifi in the iPhone. I tried everything to make it work. I just gave up after a year. Order the new iPhone 6 plus last week. Waiting for it to come in. Really hope it works on wifi. good luck to everyone having this problem it has been going on ever since the release of the first iphone 5 in Sep 2012.

Sep 23, 2014 6:16 AM in response to Cm1545a

I'm using the iPhone 5s and iPad mini with retina and I had the same issue with wifi on my iPhone 5s. I was able to solve this issue by SWITCHING OFF CELLULAR DATA by going to SETTINGS > CELLULAR. I figured the problem was related to cellular data as my iPad mini (wifi only) didn't have any wifi issues.


My guess is that iOS 8 has a few bugs with juggling between internet connections between cellular data and wifi due to new iOS 8 features such as continuity (which allows phone calls and text messaging to be made/received via iPad and MacBook) and VoLTE (which allows phone calls to be made via wifi and switch to cellular data seamlessly).


So my suggestion is to switch off cellular data whenever you're connected to wifi. I hope this helps anyone who reads this as it has helped me.

Sep 23, 2014 6:17 AM in response to Mikef91

I'm using the iPhone 5s and iPad mini with retina and I had the same issue with wifi on my iPhone 5s. I was able to solve this issue by SWITCHING OFF CELLULAR DATA by going to SETTINGS > CELLULAR. I figured the problem was related to cellular data as my iPad mini (wifi only) didn't have any wifi issues.


My guess is that iOS 8 has a few bugs with juggling between internet connections between cellular data and wifi due to new iOS 8 features such as continuity (which allows phone calls and text messaging to be made/received via iPad and MacBook) and VoLTE (which allows phone calls to be made via wifi and switch to cellular data seamlessly).


So my suggestion is to switch off cellular data whenever you're connected to wifi. I hope this helps anyone who reads this as it has helped me.

Sep 23, 2014 2:35 PM in response to Mikef91

My 6 Plus works fine so far on Wi-Fi. I'm getting my typical 40-45 down / 12 up speed. I had slow wi-fi issues once with a Samsung Galaxy 4, and most of it came from security settings on my router. For some reason I had slow speeds using WPA2 with that phone and had to change the security to something else. Try testing different router settings first and reset your network settings on your iPhone. If the speeds are still slow then there may be an issue with your phone and you should take it back. Good luck😉

Sep 25, 2014 4:30 PM in response to Mikef91

I'm having the same issues, slow wi-fi . I have an Asus RT-AC66R router. It's set to WPA2 AES encryption. I have 2 wireless networks setup on it, one on 2.4 Ghz and one on 5 Ghz. I found that if I switch from 2.4 to 5 Ghz, it fixes the slowness issue. The only problem is my printer is on the 2.4 network and doesn't support 5 Ghz, there goes my AirPrint! I am completey convinced that the issue is iOS 8. The reason I say this is because my iPad Air has the same problem since I recently upgraded to iOS 8. I sure hope Apple fixes this soon, I'm starting lose faith in them.


User uploaded file

Sep 27, 2014 6:07 PM in response to andrewfinance

I have Verizon FiOS and just went through the process of resetting my router. I assume the way to do this with Xfinity/Comcast will be very similar to what I just did, although I can't say for sure. What you want to do is log into your router through a web browser. The address usually is something like 192.168.1.1., although the address depends on the brand of router you are using. Here's a link that will hopefully help.


http://www.wikihow.com/Access-a-Router


Good luck! Changing over to WAP2 really did the trick for me, hope it does for you too.

Sep 28, 2014 8:08 AM in response to z06gal

I have a theory. I couldn't connect no matter the encryption key settings, WEP or WAP2. I bought a better router and now I connect just fine.


It could be a problem with routers that don't have two separate channels for 2.4 and 5ghz. For example, my old router was dual-band but single-channel, so it could do either 2.4ghz, 5ghz, but not both at the same time. On single-channel, if you run on 5ghz then a lot of printers and older iOS devices will not connect.


I believe it is best to have a simultaneous dual-band router (especially if you connect multiple devices), so both 2.4ghz and 5ghz run at the same time on separate channels. This allows you to set a WEP2 password for each channel. They're more expensive because essentially they're two routers in one.

Slow Wifi on iPhone 6 Plus

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