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miamialley

macrumors 68040
Original poster
Jul 28, 2008
3,609
1,086
California, USA
Suddenly my iPhone 4 alternates between Wifi and 3G. When at home, it sticks with wifi for maybe 8-10 seconds, then goes to 3G for 1-2 seconds, then back to wifi to repeat this cycle. It's never done this before. I'm using 4.3.3.

I haven't tested it with another wifi network, but no changes have been made to the router and all other devices work as usual with the router. Thoughts?
 
Last edited:
This happens to me whenever my WiFi signal gets weak. It keeps switching back and forth between the two and was quite annoying.

How is your WiFi signal on your device? Are you getting full reception?

Maybe try and restart your WiFi router and see if that fixes the problem. A few weeks ago I actually had a problem where I wasn't able to connect to my WiFi signal at all, on any of my device. (PS3, laptop, iPod, iPhone) After a quick reboot it seemed to fix itself. Give it a try.
 
It gets full wifi bars. I'm in the same room as the router.

I just did unplug and plug in my router and the problem seems to have gone away. Not sure why that worked, but it seems to have. Wish I had done that before I reset!
 
It gets full wifi bars. I'm in the same room as the router.

I just did unplug and plug in my router and the problem seems to have gone away. Not sure why that worked, but it seems to have. Wish I had done that before I reset!

Haha sorry I didn't post earlier. Glad it's fixed though. :)
 
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