WiFi stopped working all of the sudden

I've been having the exact same issue with my 1st. gen iPhone too, the last two days wifi has been terrible with lots of server not responding messages. While my MBP and my wife's, along with her iPhone are working fine. I'm taking mine back to the store tomorrow to have them check it out, very frustrating.

Same thing here. Exact same thing over the weekend for me with my 1st gen iPhone. Very frustrating and on top of all that, I can not send email from any of my internet provider email accounts at all; whether thru wifi or on the edge network. Can use edge to send email from my .mac mail though.
Whew! I thought it it was just me. Someone out there know a fix for this? Pleeease.
would be much appreciated.

I even tried rolling back to version 2.1, but I'm still getting the same issues. The Apple Store I took it to today was out of 1st gen iPhones, so I could not get a replacement today. Should have another one in a couple days, I'll report back if that solves things.

Simple processes are below.

1) Reboot router (by unplugging power cord) and wait 25 seconds before you reconnect.
2) After router reboot, reset network settings.
3) After network reset check to make sure the iphone has a correct IP assigned to it by the router (NOT the by the iphone). For example of a bad IP starting with: 169 - Good example starting with: 192 etc.

To check the IP: Settings > Wifi > (on the right side of the networks name) tap the blue circle with the white arrow inside and check the IP (if it is 169 then you need to make sure you redo the following in steps 1 & 2.

If the problems persists, you may need to backup and restore from backup and try again.

Charlotte Apple IT wrote:
Simple processes are below.

1) Reboot router (by unplugging power cord) and wait 25 seconds before you reconnect.
2) After router reboot, reset network settings.
3) After network reset check to make sure the iphone has a correct IP assigned to it by the router (NOT the by the iphone). For example of a bad IP starting with: 169 - Good example starting with: 192 etc.

To check the IP: Settings > Wifi > (on the right side of the networks name) tap the blue circle with the white arrow inside and check the IP (if it is 169 then you need to make sure you redo the following in steps 1 & 2.

If the problems persists, you may need to backup and restore from backup and try again.

Nope, this doesn't seem to fix the problem.

The main cause of the problem isn't a bad IP assignment, because if it's connected for a couple of minutes you can access the internet which proves that the IP is assigned correctly, the problem then appears when you lose the wi-fi connection all-together and lose all the wi-fi discovery capabilities!

I greatly appreciate your support though...

Not my issue unfortunately, my DNS and IP settings are all correct, and the second phone I got is still doing this. I even reset my router and tried connecting with no WPA enabled, and still no luck. At best I can enable airplane mode then disable it, and I get about 30 seconds where the wifi works fine, then it all locks up and I get the Server Stopped Responding messages. Has to be something with 2.2, as this was working flawlessly here, and nothing else on my end has changed.

Apple screwed really bad on this one! 😟

this has already been done several times and is not the issue.
IP address ok; sometimes connect, sometimes not.
Cannot even deal with pop mail!!!! (frustrating)
Simply something going wrong with the 2.2 update which needs to be addressed immediately -- I'd like to use my iPhone for all of the things that I used it for previously : (
Very sad times indeed.

I have also had the same problem. Initially, after installing the 2.28 firmware upgrade my itunes and apps were downloading fine, then they just stopped downloading and my iphone will recognise WiFi's but won't use the connection, meaning I have to turn it off and use 3G to ensure I'm getting my emails. Grr - Apple - data costs are too high not to be able to use our home wifi's (not to mention free public hotspots) I rang Apple and they reckon it's got nothing to do with the upgrade and that a restore will do the trick...why can't they properly test these upgrades for bugs before issuing them?

*WiFi Suddenly Stopped: Whodunit - Comcast? Apple? Me?*

Hi, everyone,

My wife and I both have original iPhones. When 2.2 came out, we both upgraded and all was well using our Comcast Home Network with a Lynksys WCG200-CC Wireless Router. In fact, about two weeks or a week-and-a-half ago I delighted in downloading podcasts right from my iPhone. All was well.

Then about a week or so ago--it's hard to place the exact date--we turned on our iPhones and neither of us could get or send Google email. I tried downloading a podcast and I was able to get to the iTunes store and a list of podcast episodes (Grammar Girl, actually), and click on the latest, and got the message "starting download." But it seemed stuck. I clicked around the store, then came back to the download. Nothing--still stuck. After a few minutes I got the option window to retry or delete. I kept retrying and nothing; so I deleted.

I checked the forum here for help. At that time no one had reported what seemed to be my issue, but I found lots of advice on powering down the iPhone and restarting; deleting network settings and re-entering them; and even clicking on "Renew Lease" in the Network settings area for my wireless network. Nothing worked. The iPhone always seemed to detect my home network and since I was holding the iPhone near the router the signal was strong. But though the phone detected the network, it didn't seem to "connect" with the applications.

Here and there, as some have reported, there seemed to be a few seconds or a minute of connectivity. Hope rose time and again only to be dashed. Yesterday when I connected to my school's wireless, all worked flawlessly. Something about my Comcast router?

I called Comcast Home Networking support, and the agent said that, yes, a recent "firmware upgrade" had been pushed out to the routers, but he was unable to say when. I went through the process of resetting the router (and renaming my home network and changing the WEP passcode) but the issue remains with the iPhones (both of them) showing the network (with the new name) but failing to connect. (Well, it looks connected, but I couldn't access the Internet from my iPhone--except for maybe Safari, and maybe for just a minute). Bottom line: Both phones show a strong signal for the network, but it isn't connecting to the apps (if I can describe it that way).

Here's where the detective work needs to come in.

1. My laptop (connected wirelessly to the same router) works flawlessly, both before and after the router reset.

2. Both the iPhones connect to outside wireless networks just fine (at work and school).

3. Both iPhones lost wifi connectivity simultaneously about a week-plus ago. That can't be coincidence, and suggests that it's not a hardware issue nor is it an issue with 2.2 since both phones worked great with 2.2--until we lost connectivity.

4. Comcast DID have some kind of firmware upgrade recently to its routers, or some routers, I think (though details are fuzzy).

5. But why would my laptop (and my wife's laptop) work great with the router but the iPhones (both of them) fail with the same router?

6. Neither of our phones have ever been jailbroken or in any way hacked, and they have some similar and some different apps installed. When the free att-wireless hotspot app came out just before the problem started I installed that and right after that was when the connectivity disappeared. I thought it was the app, and uninstalled it, but the problem persisted. My wife's iPhone never did have the app installed, so the app is not the problem.

What can I do?

I plan on two steps.

a. First, go into my Comcast router settings and enable MAC address detection for all our computers (including our iPhones). Maybe that will "shock" the phones into not only detecting but connecting to the network.

b. Restoring both phones from backups. But from other reports on these forums that doesn't seem to cure the loss of wifi connectivity. If others reported that "I restored my phone and now my home network really connects!" I'd be more eager to do this, but that doesn't (yet) seem to be the case.

Sorry for the long post, but I wanted to get as much information out as possible. Do you think the problem is Comcast-related? Or do others with home networks from other carriers have the same issue?

Thanks for any help or insight you can provide. This is quite vexing and undermines the whole point of having an iPhone!

Interesting, as I have Comcast and a WGC200 router as well. I've tried the restore route and it didn't work at all FWIW, so I think it's a waste of your time. I've also tried the Mac address settings, but that did not work as well. At this point neither my iPhone, nor my wife's are working via wifi still, though our MBP's work fine.

One odd thing I noticed last night, was that our iPhone's automatically detect 3 DNS servers, where as the MBP's only show 2 DNS servers. I tried deleting the 3rd DNS server on the iPhone, but that had no effect on the issue still.

Forget it people.

This is all *Apple's* fault!

Yesterday I've downgraded my iPhone 1G to 1.1.4 and it worked fine for about 20 minutes but then the same problem occurred again!

IMO this whole issue is probably due to one of the following:

1. Some faulty apple software from 2.1+ that caused a failure in the iPhone's hardware
2. A problem in the update/restore process that caused severe software/hardware damage to the iPhone

The odd thing is that if this is a software problem it survived the restore, update, downgrade of the iPhone software as well as the baseband upgrade/downgrade.

If this problem is due to hardware failure as the people at Apple Stores claim, and has no resolution by a firmware update, then believe me the iPhone is another piece of crap that people should refrain from buying! I mean why spend $400+ for a piece of junk that'll fail after a year, just when you run out of your warranty!

Hi, Shinnawy,

It's possible that an Apple firmware upgrade actually damaged the iPhone hardware, but, if that's the case, why are those of us plagued with this particular issue (home wifi network detected, but not connected) able to connect with wifi networks outside our home without a problem?

This is a different sort of problem, I suspect, than simply not being able to connect with wifi at all (regardless of location) or with the iPhone not even detecting the wifi network.

What's vexing for me is that I can't see any reason why our iPhones would NOT work with our Comcast Wireless Network but WOULD work with wireless networks at work and school.

Hey dbarnett99,

All sorts of problems happened with the faulty iPhone 1G/3G wi-fi connection ever since the 2.1 update! I wonder if Apple still thinks this is not their problem!

I guess we'll just have to wait and see their response. But to all the efforts your doing trying to restore your wi-fi connection at home, I don't think its a router problem and this might be a sign that you'll be losing your wi-fi soon.

So enjoy it while you have it 😉