3G iPhone WiFi: Cannot connect problem

Hi guys just to let you know.
I have a iPhone 3G 16gb version
which I have been having problem connecting to my home Wi-Fi Router which is a Netgear.
However, an almost similar NetGear at work has worked fine.
The NetGear at home is a ADSL2+ router whereas the one at work is only a NetGear Access Point.
I did what cangel65 said, which was to was to turn on and off two times "Ask for networks" (so the end location of that option is off) and walla the connection started to work.
Give it a go if you are having problems.
TO access goto Settings > Wi-Fi > at the bottom look for Ask to Join Networks. Turn it off, and on again and then off. Then at the top turn your Wi-Fi off and then back on again. Join your Wi-Fi and then try to surf the web.
Good luck

Hi guys just to let you know.
I have a iPhone 3G 16gb version
which I have been having problem connecting to my home Wi-Fi Router which is a Netgear.
However, an almost similar NetGear at work has worked fine.
The NetGear at home is a ADSL2+ router whereas the one at work is only a NetGear Access Point.
I did what cangel65 said, which was to was to turn on and off two times "Ask for networks" (so the end location of that option is off) and walla the connection started to work.
Give it a go if you are having problems.
TO access goto Settings > Wi-Fi > at the bottom look for Ask to Join Networks. Turn it off, and on again and then off. Then at the top turn your Wi-Fi off and then back on again. Join your Wi-Fi and then try to surf the web.
Good luck

THIS IS THE CURE My new 2.0 3G iphone would not connct reliably to my linksys-G router and I changed the http proxy to auto and tada fixed

if yo are using iphone 3G and your router/modem is a bet old the firware version of the router might not be compatible with the iphone. so u need to update your router/modem to its latest version

Okay. I've just had a similar experience with my new iPhone 3G -- which I have just managed to solve -- so let me chip in here too. Basically it was a security problem, and changing from WEP to WPA sorted it out.

I'm a UK BT Total Broadband user, so for others using BT, here is a detailed breakdown. (The same principles should apply to other broadband users, so adapt where necessary.)

I have a BT Home Hub (the old white one, not the new black one) and when I got my iPhone 3G 16GB a few days ago it seemed to connect to my router (it accepted the key, came up with a blue tick in the Settings panel, ect) but when trying to access the web through Safari I was told I wasn't connected to the internet. Occasionally the wifi symbol at the top would vanish and 3G would return.

After trying all the advice posted above (MAC filtering is not used by the Home Hub; I tried resets, switching wifi on and off in iPhone's Settings, etc) I still couldn't connect. So I called O2 (O2 in the UK have a dedicated iPhone help line -- call 2302 from your iPhone) who were extremely helpful and efficient. The woman who helped me talked me through these steps which eventually did the trick:

1. Access your router control panel through the browser on your computer, and type in your router's IP address. (You can find this in OS X in System Preferences > Network, then select Airport, click Advanced at the bottom, then select the TCP/IP panel -- the IP address for your router should be displayed there.) This will bring up the control panel. Go to Basic Config > Wireless. Next to Encryption the current selected option should be WEP. Change this to "Use WPA-PSK Encryption" and apply. You may need to enter your router key at this stage (it's on the back of the box). (You will be warned that you may need to re-configure connected devices. In my experience this wasn't a problem: my BT Vision box and phone were not affected.)

2. Your computer will probably now give a timeout message, or at least disconnect from the internet. Which means the WPA has been applied and you need to reconnect your computer -- which should be straightforward.

3. On your iPhone, reset your network settings (Settings > General > Reset > Reset Network Settings). The iPhone will restart, but all your data and other settings will be fine.

4. When the iPhone has restarted, go to Settings > Wifi and connect to your Home Hub.

5. Hoorah! It works.

Hope this is helpful.

I'm having similar problem with my iPod touch. I restored it and bought the 2.0 software this morning and since installing it I haven't been able to connect to the internet. I have tried all the above that I can and the message I get is "Safari can't open the page because it is not connected to the internet". I can connect to the router when I put the password in and the Wi-Fi symbol appears but it won't load anything in safari, youtube, itunes store, weather, stocks and all that, and the little Wi-Fi symbol keeps disappearing and then reappearing. Te internet still works fine on both my laptops.

Has anyone got anything else I can try? Like I said I've tried nearly everything above except settings and stuff on my router.

I'm in the same boat as everyone else. I've tried all of the tricks and resetting the network settings, yet I am still unable to join my home network.

received msg when trying to access my wireless router
"safari can't open the page because it is not connected to the internet"
In my case... I was able to see
"IP Addess"
"Subnet Mask"
had values but
"Router"
"DNS"
were Empty

D/l the latest firmware and that did the trick. I am able to connect to the net.

Now all the parameters (Ip Address, ...) have values

PS: Wireless router - Linksys WRT54G v5

Message was edited by: Ervine

I can confirm that in my case (16GB iPhone3G, v 2.0) this fixed my problem. I was able to connect to my 802.11g/b WiFi once or twice, then nothing. The iPhone would not connect despite all my attempts (resetting Network Settings, reboot router, turn off WPA, turn off MAC filtering, turn off and on twice the "Ask to Join Networks" function, manually setting the IP info, etc.). But when I changed the HTTP Proxy from Off to Auto, the iPhone connected to my WiFI network instantly.

This is weird and very annoying, but I hope this hint helps someone.

Got a new iPhone 3G 16 gb, in Sweden with Telia.

3G works great, but Wireless doesn't work at all. You can connect, but the Safari and other apps just doesn't connect. The problems shouldn't have anything to do with changing my Airport Express settings. It should work for any standard wireless router!

Tried the above, resetting my network, switching "ask for.." on and off, Wifi on and off. Nothing works... I really hope they are releasing an update on this bug. Cause it has to be a big bug?

HI Guys,
I think I have the answer but need you guys to test if you can.
When you think you have connected your iPhone to your wireless network, can you go to the Wi-FI settings of your iPhone and see what IP address you have been given.
If you dont have an IP address then ignore the rest as this post will not help at all, but if you do have an IP address (pleae allow DHCP if your wireless access points allows it) then carry on reading.
What you need to do next is to try and ping that IP address from your PC or Mac. What this will identify is whether or not you are having problems connecting your device to your network, or whether or not your device just has problems connecting to the internet (which is what my iPhone was suffering from).
So once you have tried to ping the ip address of your iPhone and you get a reply, I think I know your problem.
The problem is that most ADSL/SDSL router have a specific DNS ip address which is what the iPhone gets when it is getting the rest of the network IP details. When it recieves this DNS ip address, and if it is different from your routers internal network IP address, it is unable to resolve domain names. SO when you type in Google.com, what actually happens is that the browser takes google.com and talks to the first DNS server it can to convert that string into global IP addresses and then tried to connected to that IP address. This it can nopt communicate with the DNS server it can not see the web pages on the internet.
What i did was to either:
- Change the DNS setting on my router and set it back to the IP address of the router. In effect what you do is to tell devices on your network that they should direct queries to the router, and then the router will handle the conversation, or
- See what network settings are on your iphone and if the DNS settings are different to ip address of your router, then manually set the settings exactly the same as the DHCP but change the DNS to point to the routers IP address.

Now with the above you have to know what you are doing, and I would strongly suggest you know how to change IP address before attempting this and messing up and details on your router or iPhone, but for those more clued up on IP addresses and router configurations, I would urge you to have a look and see if it works.

Please please make sure you know what you are doing, as i dont want to cause more havoc then help, so please please be careful.
One thinkg you can do is to jot down your network details on this forum and we can try and help with which items you should change to get the best effect.

As soon as I did this my iPhone Wi-Fi access came alive and I have had 2-3 full days of accessing my network.

Hope tha above helps and let me know if you have problems, I will try and help.

HI Guys,
I think I have the answer but need you guys to test if you can.
When you think you have connected your iPhone to your wireless network, can you go to the Wi-FI settings of your iPhone and see what IP address you have been given.
If you dont have an IP address then ignore the rest as this post will not help at all, but if you do have an IP address (pleae allow DHCP if your wireless access points allows it) then carry on reading.
What you need to do next is to try and ping that IP address from your PC or Mac. What this will identify is whether or not you are having problems connecting your device to your network, or whether or not your device just has problems connecting to the internet (which is what my iPhone was suffering from).
So once you have tried to ping the ip address of your iPhone and you get a reply, I think I know your problem.
The problem is that most ADSL/SDSL router have a specific DNS ip address which is what the iPhone gets when it is getting the rest of the network IP details. When it recieves this DNS ip address, and if it is different from your routers internal network IP address, it is unable to resolve domain names. SO when you type in Google.com, what actually happens is that the browser takes google.com and talks to the first DNS server it can to convert that string into global IP addresses and then tried to connected to that IP address. This it can nopt communicate with the DNS server it can not see the web pages on the internet.
What i did was to either:
- Change the DNS setting on my router and set it back to the IP address of the router. In effect what you do is to tell devices on your network that they should direct queries to the router, and then the router will handle the conversation, or
- See what network settings are on your iphone and if the DNS settings are different to ip address of your router, then manually set the settings exactly the same as the DHCP but change the DNS to point to the routers IP address.

Now with the above you have to know what you are doing, and I would strongly suggest you know how to change IP address before attempting this and messing up and details on your router or iPhone, but for those more clued up on IP addresses and router configurations, I would urge you to have a look and see if it works.

Please please make sure you know what you are doing, as i dont want to cause more havoc then help, so please please be careful.
One thinkg you can do is to jot down your network details on this forum and we can try and help with which items you should change to get the best effect.

As soon as I did this my iPhone Wi-Fi access came alive and I have had 2-3 full days of accessing my network.

Hope tha above helps and let me know if you have problems, I will try and help.

Perfect!
I would like to add: you give the choice between 2 solutions, but the first one (changing DNS in router) will only work for that router and supposes you have access to the router admin rights.
The second solution (Change DNS setting in Iphone wifi network you want to use) can be replicated easily each time the problem arises, without having to access the router.
I would like to clarify Farhad's instruction for change of Network DNS:
Go to: Settings, Wi-Fi, your selected network, DHCP page.
Change the first part of DNS (part before the comma)to read the same as the line above (router). Leave the rest (after the comma) untouched

In the event that some folks are reading this thread prior to purchase, I wanted to illustrate that not everyone's experience is the same. I have just gotten my first ever iPhone (3G) less than a week ago, and since that time I have had need/occasion to be on at least 5 WiFi networks. Three of them are controlled, two by WEP and one by an access list (a setup in which the network is "wide open" as far as network accessibility is concerned, but your device's MAC address -- the hexadecimal unique identifier of the network interface "card" in the format xx:xx:xx:xx:xx:xx -- must be stored in a list on your router before you can connect). Two others were uncontrolled (i.e. open public networks). I had no difficulty connecting to any of the networks I attempted to connect to.

One significant key is to be sure that the router you're connecting to is correctly configured, and it wouldn't hurt, assuming you are administrator of the router, to step through all the settings to confirm this. Time spent at mission control before trying to connect from your orbiting space station is time very well spent. Also, as with any technology that's new to the world or new to you: have patience! Be methodical. Try default settings first. If they fail, change one thing and try again. If you change too many things at once you'll never know which of them helped and which did not.

Thanks Farhad and Pierrejo. The DNS settings change on the router was a little dicey and lost some of our work connections. I changed them back to default, then did the phone fix with the first DNS being the same as the router and BINGO. I suppose this might be addressed in the next bugfix, but you never know. Still waiting for better SMS alerts.

I'll also say that even though the "satellite" is tougher to fix, it's easier to reset. Business Routers resets can screw up LOTS more people at one time.

JW