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3100 Views 4 Replies Latest reply: Oct 28, 2010 10:20 PM by aaplontop
Currently Being ModeratedOct 26, 2010 11:56 AM (in response to tey112)It's most likely a DHCP problem with your router. A 169 address indicates that your DHCP server is not assigning you a valid IP address or that you cannot connect to the network to receive the address. Try power cycling your router. Then do reset network settings on your iPhone.iMac i7 27", Mac OS X (10.6.4), iPhone 4 - iOS 4.2
Currently Being ModeratedOct 28, 2010 11:07 AM (in response to Cristofer Cruz)My iPhone 4 is doing the same thing. My buddy is sitting here with his iPhone 4 and it will get on the WiFi, but mine keeps dumping me to 3G. Also, if I put the phone in airplane mode and turn WiFi on it will connect to the network, but if airplane mode is off, it keeps defaulting me to 3G instead of the WiFi. Any ideas or help here?iPhone 4, iOS 4
Currently Being ModeratedOct 28, 2010 11:34 AM (in response to TDOakes)The "reset network settings" didn't work for me, but it was because mine was on the router side. That option is under Settings>General>Reset>Reset Network Settings. That said, before I reset my router, another iphone was still able to connect, and wireless laptops were still working. I wasn't sure it was my router until my wireless printer started getting a 169 ip address. A reset of my router, linksys e1000, fixed the problem.
Hope that helpsall of them, iOS 4
Currently Being ModeratedOct 28, 2010 10:20 PM (in response to tey112)That started happening to me within the last several days. My iPhone 3Gs was getting warm and the battery was draining quickly. It was cycling wifi on and off several times a minute.
Coincidentally, I noticed that another new WiFi SSID had shown up with same full signal strength as mine -- probably an adjacent neighbor in my apartment building.
So I changed my router's wireless b/g channel from "auto" to channel 11. That resolved it. Wifi on the iPhone has returned to "steady state".