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iPhone Wifi Unable to join Network

Since 3 days now my iphone 3G(3.0) can not connect to a wireless network. Before it connect automatically at home or at work but now it says "Unable to join network". I have reset the network even restore my iphone to default settings. Still it can not connect to a wireless network. But what I dont understand is that it finds wireless networks but can not connect to it even to a free wireless network it keeps on displaying "Unable to join network"
I have called AppleCare they told me to do thesame things I have done.
Any body having thasame problem? Is it hardware or software problem? Please can any body help me? iPhone is no good without wifi...

Windows XP Pro

Posted on Jul 31, 2009 12:02 AM

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133 replies

May 16, 2018 12:17 AM in response to Nwobi

Just got to France for two weeks with MacBook Pro and iPhone 3G2 3.0.1. The apartment I'm in has DSL modem with wireless router and I connected to internet with no problem with the MBP, but I'm not able to do it with the iPhone. I have airplane mode on and data service off to avoid high ATT charges. When I try to connect to Safari it recognizes the network (that has no WEP password), but when I click I get the message "Unable to connect to join the network "Paris_Combes". Anyone have any suggestions?
Merci

Jul 31, 2009 7:06 AM in response to Nwobi

I'm having the same problem with my iPhone 3GS.

Connecting to the Wi-Fi in my office worked a treat for the first few weeks of getting the new iPhone. Now, I get 'unable to connect to the network "xx"' message. The guy who sits behind, he just got the same phone last week and his is working fine.

I've scoured the net for advice, seen all the similar posts and tried the all the steps Apple suggest and nothing works. The only option left is to return it. Very disappointed

Not sent from my iPhone

Aug 1, 2009 2:10 PM in response to Ingo2711

Hi Ingo2711, I have tried all the steps in that article before posting my message. I dont think the problem is from the router settings or any wireless network issue because other iPhones and laptops are connected to thesame router & my iphone use to connect automatically before few days ago. Now it take some time before it can discover wireless network & when it fines it, its Unable to join the network.
I try to downgrade my iphone to OS 2.2.1 that was working fine but there is no way I could do that.
I dont think is a hardware problem because if it is, it can not discover any wireless network & if it is a software problem, I think the easy way is to downgrade to the old version that was working fine. Till Apple fine a solution to the OS 3.0 wifi.
Please what do you think I should do?

Aug 2, 2009 2:54 PM in response to Nwobi

My 3G phone is from France, and i got the same problem last week and overnight. The problem did not happen right after 3.0 upgrade, but like couple of weeks. 3.0 worked perfectly for weeks, but then, i woke up one day and i could not join the network i just used last night. So is 3.0 to blame?

And Apple is mute about this problem and there is no acknowledgement of this.

iPhone Wifi Unable to join Network

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