Unable to Join WiFi

[nysus]

Unplugging and plugging in router fixed it for me

I had the same problem. Only one bar was showing on iphone and I couldn't connect to the router. Rebooting phone and even unjailbreaking it didn't help. Then I unplugged my router and plugged it back in and I was good to go.

 

[NoWifi]

THIS WORKS!! Solution Found

Had this problem for a couple of days now, and finally cracked it!

Bear with me through explanation, as I'm sure it'll solve your problem. With my router, I have WEP protection. The passkey (i.e. 7A533AA1C7) is generated by me inputting some text (in this case 'nickiscool') and the router converting it to hex or something. I then have four options of codes similar to the above (let's call them 1,2,3 & 4). I select one of these, apply the settings, and thats the passkey set.

Then, I go to my wireless settings on my PC, try to connect to the wifi and input the passkey. Crucially, beneath the passkey entry bit is a 'Key Index', this has to be set to the correct number (1,2,3 or 4) for the connection to work.

For example, I have chosen passkey 2, so I must set my key index is set to 2. Everything works and I'm all happy. That is until I try to find the wifi on my new iphone...

It finds the network, but every time I input the correct passkey, it says it's incorrect. Frustrating! But, what it seems to me is that the iphone's 'Key Index' is permanently set to 1. So, to fix...

- Go into your router settings, generate passkeys and pick option 1.
- Go into your wireless settings, input the new passkey and set 'Key Index' to 1 so your wireless keeps working.
- Attempt to connect with your iphone, use new passkey.
- Bet it works!

Best of luck with it. Tricky and annoying problem, but this seems to have fixed it for me, and I tested it a couple of times to make sure the theory is correct.

Cheers


Nick

The instructions above are not my own but i copied it from somewhere & it worked for me. Also, make sure u set your router to MIXED B/G. On your iPhone, goto WiFi and choose OTHER NETWORKS. Enter your SSID again and WEP as the security type. Enter your password/key. Make sure its KEY Index 1 that u have chosen. U should see the WiFi signal right away.

 

[surcal]

iphone - unable to join network - Solved

Solved - Solved -Solved

I held my iphone touching the antenna of WIFI router, it connected to the router. I was able to use the internet in this position only. Moving away from router's antenna, internet does not works. At leaset now I can do some very urgent works on iphone without GPRS connection.

 

[surcal]

iphone - unable to join the network - Solved

Solved - Solved -Solved

I held my iphone touching the antenna of WIFI router, it connected to the router. I was able to use the internet in this position only. Moving away from router's antenna, internet does not works. At leaset now I can do some very urgent works on iphone without GPRS connection.
I was not able to use my wifi for last six months. Done everything that was already discussed in all the forums.

http://www.youtube.com/watch?v=xL7rItVFUeg

 

[surcal]

It seems that it could be a hardware problem.I held my iphone touching the antenna of WIFI router, it connected to the router. I was able to use the internet in this position only. Moving away from router's antenna, internet does not works. At leaset now I can do some very urgent works on iphone without GPRS connection.I was not able to use my wifi for last six months. Done everything that was already discussed in all the forums.I am calling it solved only because, I was afraid of future unlocks will not be possible without WIFI. Uptil 3.1.2 "iphone pcsuite" could be used to install ultrasn0w directly through PC. But from 3.1.3 iphone needs to install "AFC2ADD" through cydia, before it can be recognised as a jailbreaked iphone. Atleast WIFI working. This way I can update important cydia updates and apps without having to use GPRS.

 

[surcal]

iphone - unable to join the network - Solved

Today I installed iOS 4.0 on iphone 3G. The wifi is only working the same way (By touching the antenna of my WIFI router). Atleast now I had guts to install new firmware and unlock the iphone through WIFI. In my case now, it's definately a hardware problem.

 

[Saara]

My iphone wifi suddenly stopped working and I tried most of these thing suggested here and the following seemed to work:

Turned off my router's wireless security (tried connecting but didn't work so I don't know if this step did anything). Then changed my shared key to a different one and I am back on

 

[tomasnilsson]

As was mentioned there can be a conflict with wireless IP addresses when iPhone tries to connect to your wireless router.
Step 1: On your computer - open your network pref pane and click on TCP/IP info. generally you should see Using DHCP. Note your subnet mask and router IP address.
Step2: on the iPhone -go to "settings" - Wi-Fi set to "on" and select: choose a network
Step 3: after selecting your wireless network change to static IP temporarly.
Step 4: clear IP address field go down to subnet mask and enter manually same with router Ip you saw on the pref pane.
Step 5: switch back to DHCP and renew

If you are prompted for a WEP switch to WEP ASCII and preceed password with $. ..sometimes not required.

You may need to click "forget network" and turn off phone before proceeding with the above.

Hi there!

Total newbie and just registered to say thank you for helping out total clueless people like myself.
Again thank you.

 

[wazzu]

The same problem but just with iPhone

Hi guys

I have the same issue but just with the iPhone, the MacBook, iPad and other devices works fine.

I have an Airport extreme and was working fine until de last iOS (4.3.2) after that just my iPhone it's unable to join to the same network.

Do you have some ideas..

I have restored the iPhone and the Airport but the problems continues.

 

[mrgnsms]

Reset worked-thanks!

 

[pauly42]

3gs

i have a similar problem i can see the network and it asks for the password which i put in, but nothing happens.

 

[Brad02]

i have a similar problem i can see the network and it asks for the password which i put in, but nothing happens.

Had the same issue with my MIL's ip4 on 5.0.1 un-jailbroken. I just turned wifi off and then back on and it connected without any issues.

 

[bevon]

Unable to Join WiFi

Yeah, I guess my only concern is that the iPhone's WiFi receiver is somehow damaged because the range is so limited. Have others experienced WiFi range that is significantly worse on the iPhone than on a laptop for example?

Yes; at my gym my 3GS suddenly stops connecting to the gym's wifi (which had worked for years), while my iPad2 in my gym bag connects to wifi without issue. Brought my 4S and got the "could not connect" message, while my original iPhone (June 2007) connects fine. This is an issue as I've just signed up for Spotify mobile especially for use at the gym neither the 3GS nor 4S connects while the iPhone original does--*BUT* Spotify won't work on the original iPhone as it requires iOS4 or higher.

The issue can't be signal strength as all the phones/pad see the gym's wifi (along with half a dozen other access points near by; the gym is next to an office park). I've tried the 'forget this network' and resubscribing to the wifi network as well as powering on/off.

Finally, I can't ask the gym manager about this; the wifi is password protected (an I know I've the correct password) and for gym employees only, but I obtained the password several years ago through "social engineering".

Advice, please.

bevon