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AirPort - Self assigned IP address - no internet!

Adding a $ before the password may work in WEP, but it does not work when you are using WPA with a password instead of a 64 or 128 bit numerical code. Interesting that you had problems with the Linksys router, because that is the only one that works for me. And my Intel MacBook Pro would always add the $ sign automatically for me when I was using WEP.

My problem arose when I left my trustworthy Linksys G router and moved to a Netgear N router and using WPA2. I got constant send and receive errors, but like you, the biggest problem was when a Windows computer was also using the wireless network along with my Apple computer. Strange. I don't think this is solved yet.
 
I have been having this problem ever since i installed leopard. It only shows up when i am using a 802.1X WPA type network that has many users on it at once. I spent an hour troubleshooting this problem and i gave up in frustration and i just sat my laptop on the table and sipped my coffee. 2 minutes go by and safari reloads the page it had failed to load due to no internet connection. :rolleyes:

So it seems that sometimes i must wait a minute or two once my Airport has connected to a network for it to give me an IP address. The more i use my MBP on more and more wireless networks the more i feel like the routers have to go out of their way to let me in. Something doesn't feel right with the way my MBP has been handshaking with routers ever since i installed leopard. But who knows really. All i know is if i give it a minute or two, everything is fine if i am certain that everything is properly setup.
 
beautifuldawn said:
(I hope this thread is in the right section!)
I just bought a white applemac laptop yesterday and it has all been set up - but the internet won't connect. I have a home network which always worked fine with my microsoft laptop and the AirPort is 'on' - but it says I have a 'self assigned IP address and may not be able to connect to the internet.'
... well, I can't! So... what do I do?
Click to expand...

Have you tried restarting your router?

I've found that these kind of problems go away after unplugging the router from the electrical outlet and waiting about 10 seconds before plugging it again. No need to tweak the settings on the mac.
 
cdcastillo said:
Have you tried restarting your router?

I've found that these kind of problems go away after unplugging the router from the electrical outlet and waiting about 10 seconds before plugging it again. No need to tweak the settings on the mac.
Click to expand...

Unplug the router? You send like you must work in technical support for a router manufacturer. That is always a good suggestion, but if that is the solution then I will be powering down my router six times per day.

I am starting to see a pattern here. It really does seem to involve mainly the wireless x with security encryption greater than WEP and were there are both windows and mac devices sharing the same wireless connection.

But we still don't have a solution, except for what I have done which is to drop back to wireless -g using only WEP encryption and everything works flawlessly, not a single send or receive error and no router rebooting required.

I just wish this thing would get figured out.
 
apple product specialsts last word

apple is not going to fix the problem. when you upgrade to leopard, it upgrades the airport card firmware. this is permanent.. so even if you go back to tiger on an erase and install.. it may still not work... "it is not our problem if the router company does not keep up to date with our operating system. we use the new firmware to move forward and cannot be held accountable for fixing the problems of older routers (802.1x G) routers.":mad: i think i may return my worthless MBP and go back to a dell
 
mikef said:
apple is not going to fix the problem. when you upgrade to leopard, it upgrades the airport card firmware. this is permanent.. so even if you go back to tiger on an erase and install.. it may still not work... "it is not our problem if the router company does not keep up to date with our operating system. we use the new firmware to move forward and cannot be held accountable for fixing the problems of older routers (802.1x G) routers.":mad: i think i may return my worthless MBP and go back to a dell
Click to expand...

You are hopeless. Don't even bother posting here ok. If you read the whole post you will see that the problem lies more in the newer routers, not the old g routers, which actually seem to work the best. So if you want to dump your MacBook Pro, go ahead, and go screw yourself while you are at it.
 
I had the same annoying problem with my ethernet connection not working all of a sudden. I spent a bunch of time with my internet provider technical support and they ran out of options.

I had to piggyback on my my neighbor's wifi to google all possible solutions. It turns out that this thread had a solution - thanks again, Macrumors. I would never have guessed that this firewall would be a culprit.

Disabling the firewall instantly allowed the connection. I am seriously pissed off at Leopard for this - the concept of "just works" is going quickly and I will again have to learn all this firewall, blue teeth, dhcp and other crap in order to be able to work on a computer. It is ok to have a bug or two in the OS, but not when it comes to the absence of basic functionality. Done venting...
 
Right after 10.5.4 and Time Capsule Airport update...

this started happening to one of our machines, a G4 PowerBook. Drove me up the wall for a couple of days, resisting all the usual magic dances.

Thank you, AlBDamned, for getting it exactly right. Firewall off, BOOM, works immediately! Awesome.
 
Macbook wifi connect problem

Thanks for all the postings re getting the Macbooks to see and connect to wireless routers. I've tried everything suggested and they either do not work or work inconsistently for me. I'm still experimenting with a solution. The laptop worked fine for a long time with my present setup which includes a Netgear router. I am also running two older laptops on this setup - a Powerbook 'Pismo' and an iBook. Both have the older airport cards in them and these two computers work with the router. I've tried changing the channel on the router to 1,6, or 11 as a tech posting elsewhere stated that these are 'non overlapping channels' and have the least interference from other, nearby wifi routers. I have noticed this - when other routers are detected I have problems, both with the older mac laptops and the Macbook. I also think the problem with the macbook might have to do with other computers being on the wifi 'network' at the same time. If no other computers are on my wifi the Macbook charges right in and gets a good connect. If I fire up another laptop and connect to the wifi it either gets dropped or slowly starts losing its connection to the wifi router. I'm wondering if the Macbook airport card or software has a problem muscling into a wifi network and is susceptible to 'interference' from other signals. By the way the Macbook is 10.5 OSX and the other laptops are 10.4. I'm going to see if by keeping all other laptops off my wifi router I can keep the Macbook connected.
 
This problem still exists in 10.5.4

I was syncing my new 3G iPhone and after I couldn't get internet access thru wlan anymore.
Wlan connection was logging fine, but with self assigned IP, even with DHCP setting.
Manual settings didn't help either.
These quoted instructions helped to solve the case again in 10.5.4


AlBDamned said:
This is a very annoying problem that's just started happening on my leopard machine.

What you need to do is go into System preferences> Security>firewall then turn it off to "allow all incoming connections".

Then turn your airport off.

Then turn it back on again.

You should now be able to connect to the web.

Then you need to go back and turn your firewall back on (very important!).

Hell knows why this happens but it's yet another crap bug in Leopard.... :rolleyes:

Literally started happening for no apparent reason after three months.
Click to expand...
 
Thank you, that's it

AlBDamned said:
This is a very annoying problem that's just started happening on my leopard machine.

What you need to do is go into System preferences> Security>firewall then turn it off to "allow all incoming connections".

Then turn your airport off.

Then turn it back on again.

You should now be able to connect to the web.

Then you need to go back and turn your firewall back on (very important!).

Hell knows why this happens but it's yet another crap bug in Leopard.... :rolleyes:

Literally started happening for no apparent reason after three months.
Click to expand...

Thank you for the answer on this, AllBDamned. What a screwed up bug that is. I had the same issue; AirPort in 10.5.1 started throwing me a Self-assigned IP off of every network to which I connect. Setting the Firewall to accept everything temporarily fixed the problem. How weird.
 
i'm having the self-assigned IP problem as well.

i just bought a macbook (10.5.2) and an iPod touch last week. neither of them will connect to my home internet (verizon). it works fine at school and on my neighbor's linksys wifi, but not mine.

i have an older macbook that is running Tiger that has never had trouble with wireless connection.

Removing the firewall has not solved the problem on my new macbook... and i don't even know what to do with my iPod, since it has far less detailed internet options.


i'm hoping this is just a Leopard bug that will be fixed with the next version... because i really don't like piggybacking off of whoever has linksys near me. :/
 
AlBDamned said:
This is a very annoying problem that's just started happening on my leopard machine.

What you need to do is go into System preferences> Security>firewall then turn it off to "allow all incoming connections".

Then turn your airport off.

Then turn it back on again.

You should now be able to connect to the web.

Then you need to go back and turn your firewall back on (very important!).

Hell knows why this happens but it's yet another crap bug in Leopard.... :rolleyes:

Literally started happening for no apparent reason after three months.
Click to expand...
THANK YOU! I had this problem and it was easily and quickly fixed by this method. The internet connection still stays when I restart my Mac.
 
This Works!

AlBDamned said:
This is a very annoying problem that's just started happening on my leopard machine.

What you need to do is go into System preferences> Security>firewall then turn it off to "allow all incoming connections".

Then turn your airport off.

Then turn it back on again.

You should now be able to connect to the web.

Then you need to go back and turn your firewall back on (very important!).

Hell knows why this happens but it's yet another crap bug in Leopard.... :rolleyes:

Literally started happening for no apparent reason after three months.
Click to expand...

Thank You! After trying several complicated solutions, it turns out that the simplest procedure works best.
I suggest that everyone who is experiencing the "self-assigned IP address" problem (even though Airport is configured to receive an IP address by DHCP) should try this first.
 
This is what finally helped me....

Hi,
I understand your frustration. I had been on internet via our wireless router with my laptop for months without problems. Then one day, I couldn't get on, unless I opened Windows. No calls worked until finally someone suggested putting the $ symbol in front of our WEP password. That worked immedidately and ever since. It seems to be a quirk if you are not using Apple's Airport. Good luck. I hope that it works.
 
self-assigned ip address and clock reset problem

Hey, thanks to everyone for posting your experiences with this problem.

Two days ago, I fired up my iBook G4 only to discover this problem..."self-assigned IP address" and no network connection etc. After trying many things including various tech support folks, my wife returned with her laptop and I was able to get online for some research.

Almost immediately, I found this thread and the advice related to the firewall. As soon as I went into System Preferences and clicked on Security, I got a popup window asking if I wanted to allow (something) to access (something). Being somewhat frustrated after several hours on this problem, I threw caution to the wind and clicked "Allow". This immediately fixed the problem!

Unfortunately, I did not "print screen" with this window, so I don't know exactly what it said. If it happens again, hopefully I will remember to post the text here to help others.

Perhaps related to this problem, my iBook has recently been resetting the clock to some date in 1969 (again I haven't noted the exact date, but it is the same each time). As you may know, this renders the computer basically inoperable until you manually reset the date/time. This has happened twice in the last few days, each time over night...I discover it first thing in the morning.

Any ideas as to why this is happening with the clock would be great!
 
Clock Reset Problem

This is kind of off-topic for this thread, but your clock is probably resetting itself because the battery is completely dead. If you have configured it to "set date & time automatically" then you will need to be online before your clock will display the correct time.
 
i too am having this problem.

it started happening when i tried setting up a router (linksys wireless N wrt-160n) on my macbook. the software wanted to change my wireless setting n so isaid yes. it turned ALL my network services off (eg, airport, bluetooth, VPN) and only allowed ethernet. that took the life of me to fix.

now, everytime i start up my macbook, it will ask me for permission for "configd" and "mDNSresponder". this never happened before and i dont know what it is, but when tehy dont come up, i usually get self-assigned ip. why is that? can anyone elaborate?

i also have nmblookup, nmbd, krb5kdc on my firewall setting pages, do those matter at all?


thanks for any help, this is an extremely frustrating problem sometimes.
 
still no internet

macbook here. I found this board yesterday while searching for the answer to the exact same problem. I was excited to see some possible solutions, however, after trying anything and everything, including the firewall settings, I still get denied service.

Rebooting/Resetting allows it to load one page, if you're lucky, then it quits.

If I happen to find another means to deal with it, I will report back.

Keep this thread alive, this is a nasty problem.
 
G4 Aluminum PB OS 10.5.1

OK, same problem, none of the fixes here worked. Some info that might help. I formerly had 10.3.9 on the PB and had no problem getting online. But when I booted up from my ext. FW drive with 10.4.11, couldn't get on. Then I did a clean install on an erased HD of 10.5.1 and can't get on. This is all happening at work with our shared router, and yes, PC's share it. I copied the numbers (IP, etc) and plugged them in manually, no go, trashed the keychain plist, turned off the firewall, used $ in front of the password (WEP). Still no go. I'm curious, anyone fool around with the 802.1X settings?
 
This is my take:

I wanted to use DHCP but with a self-assigned IP. Didn't work.

I went full manual mode in the network setup and assigned an IP there, and presto - internet.
 
A step that has proven useful to me in the past is to remove the System Configuration folder fould at:

/Library/Preferences.

Move it to your desktop, reboot, and set up your Internet again.

Solved a few Self Assigned IP address for myself.
 
similar self-assigned ip problem

hi everybody,
Like some of you guys, i'm having issues with my wireless internet conection. It only happens at the university library.
I already have the firewall turned off to allow all incoming conections.
The guys who run the internet network in my uni told me to set some things up, and so i did. proxy settings: cache.ase.ro port 8080. Still it doesn't work.
They said that the network is set up so that everyone gets the settings automatically, but aparently i don't, so they told me to try the proxy setting.
I'm so pissed of that every win laptop has internet, and i'm the only mac dude who stares at his laptop and nuthin. i even get internet on my mobile win pda-phone.
There's a girl i usually see in the library, she has a macbook air, and she runs win xp in bootcamp and she's got internet.
i run xp in parallels and it doesn't work even if i set it up like she has it.
what do you think i should do?
don't tell me to reset the router cause it's not an option, i don't even know where those things are, and the network guys won't let me.
they keep saying that there's something wrong with my mac.
One of the apple reps i went to says the exact opposite. since my laptop connects to virtually any network besides the one at the university, there's gotta be something wrong with the network.
Hopeful that i'm gonna fix this
dragos
LE: I have the network pref on dhcp auto and dhcp id: 134.
Also, i tried to fix it through the wizard and it keeps telling me to insert password, but there isn't one.
 
I found this in another thread a while back. Hope it helps.

Self assigned ip fix

1. Go to Mac/Library/Preferences/SystemConfiguration
2. Delete the following:
a. com.apple.airport.prefrences.plist
b. NetworkInterfaces.plist
c. Preferences.plist
3. Shut down computer
4. reset PRAM
 
I've Sorted the problem

I've sorted out the problem with Self Assigned IP Address, or at least for me anyway....

It works perfectly at home but at work it didn't, we have 2 wireless access points and both were the same. Other Windows Laptops were fine so I knew it wasn't the wireless routers which use to work.

It was down to our DNS Server, I removed my macbook from M$ DNS records and restarted wireless on my Macbook and it worked first time.

Don't know if this is the same issue as others,

hope this helps
 
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