Auto-assigned IP address on an open network
Hi Mac users,
I guess somebody else has already had that problem (or I would really be the unluckiest person in the mac world), but I can't find any solution to it, so PLEASE help me!
I have had my MBP for 6 months, it came with Leopard, and in November I upgraded to Snow Leopard (with someone else's CD that I can't get back do please don't tell me to do a clean Snow Leopard install). I'am not really a Mac pro cause I used to be a Windows user (yeah I know) and I never really got any problems with my Mac so please explain clearly if you have a solution for me!
Here's my problem :
I need to access an open network at my school. You're supposed to connect to this network without entering any weep or pa key, than you get to a page where you login with your school information. Then you get full internet access (web, skype,…)
The thing is that I can't event connect to this network… it says "Airport has an auto-assigned IP address 169.254.143.75 and won't be able to connect to the internet" (my computer is in french so my translation may vary from the english message). This occurs with Automatic DHCP for IPv4, and whether IPv6 is in Automatic or in Disabled setting.
The exact same thing happens whan I connect to the network using the Ethernet cable... I get the auto-assigned IP address and all...
Of course, I tried disabling and enabling Airport, and renewing the DHCP, but I always get this auto-assigned IP address.
I know the problem doesn't come from the hardware because I can connect without any problem to my wireless network at home.
I am using the 10.6.2 version of Mac OS and I already checked that all the available updates are installed.
I had a similar problem before upgrading to Snow Leopard : I could connect once to this open network, but then if I closed the lid of the computer, and then reopen it after a while, it wouldn't connect and I had to restart it entirely...
One of my friends has a Mac running with Leopard, and he has no problem connecting to the network, and neither do the windows user. I don't think it's a problem with the number of connections available on the network because I can NEVER connect to it…
Please help me!!! I'm hoping a Mac genius pops out of the computer and tells me what to do
Bonjour
The weirdest thing is that wired ethernet is not working, not getting an IP address. This may be some kind f incompatibility with the hardware but I doubt it.
Did you check in Airport and Ethernet settings that 802.1X is not enabled and that Ethernet negociation is "Automatiquement".
Also, you can completely wipe network profiles by removing those files from /Library/Preferences/SystemConfiguration/ :
NetworkInterfaces.plist
com.apple.network.identification.plist
com.apple.airport.preferences.plist
Then reboot
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Network computers auto assigning IP address
I'm administering 300+ MacBook in a 1 to 1 class room setting. for 3 months I had no problems, but more and more laptops are coming up with self-assigned IP address with no warning or reason. users (students and teachers) do not have admin authority to change settings so when it happens I have to physically (can't vnc to a deadend...) go and set TCP/IP to automatic and apply.
Previous years we used windows platform laptops and never had this issue so I'm hesitent to think its DHCP running out of lease IPs (I've checked it too)
If lowering the lease time so that if a student DOES self assign IP it wont be for long is a solution I'd be able to do so, but it seems rediculous to me that with DHCP, proper net setup, and adaquate wireless access point coverage (on uninterfering channels) that the macbook would rather make up some random garbage IP then just keep trying at DHCP....
the self assigned IP isn't even in the ip range so even if it DID do it network connection would never work anyway.
Any idea what I can do to NOT have the macbooks go auto assign IP (which is the dumbest thing I've ever seen) and keep their dhcp lease intact or reassign?Welcome to Apple Discussions:
A "self-assigned" IP means that the computer is not able to reach the DHCP server.
There is nothing "dumb" about it if you understand how networking works. It's a flag that something is wrong with the network and the computer is not connected to anything.
Of course the "self-assigned" IP is not in your network IP range. That's how it works.
If this problem is new, and you have not done anything, it may well be local RF interference blocking or jamming the WiFi signal.
You might consider installing some sniffers on a computer and checking what other signals are in the area that may be causing the problem. Anything from a leaky microwave oven, to student(s) using a cellphone(s) or BlueTooth devices can cause WiFi issues. Being near an airport, a fire or police station or other source or RF can also cause loss of signal. -
MacBook has self assigned ip address and cannot connect to the internet.
Is there an Apple recomended fix for this problem that works? I've looked on this board and have found several similar suggestions but as yet nothing that results with consistent connection every time I restart.
Since there is no exacting way to tell what of several suggestions offered in
these discussion boards, you may have tried, I will offer an Apple Support
article name and web address link; it may be you have tried this:
• Mac OS: How to release and renew a DHCP lease
http://support.apple.com/kb/TS1920
And you can get a similar self-assigned IP address via a wireless network
or a wired local network - with a theoretical connection to the internet. If
the actual connection in software is not set correctly, the default will likely
be something very familiar since the same one appears then.
If the Network system preference panel is set and you have chosen the
mode of connecting to the internet or other connected network, then
you can set the configuration of that choice in a secondary screen. In
order to have a choice to connect via AirPort, for example, you have to
check box the item and also drag it into a position of priority (first.) Or,
if you have to connect via Ethernet to a cable/DSL modem (if not USB)
you can choose to place Ethernet in a position of priority above others.
Then, further the Network configuration's next step to set it up correctly.
The above link does cover the basics adequately, including a reset of
the cable or DSL modem. If there is a cable modem and also a wireless
base station, you may also have to reset each of them in a specific way
in order to get them to start up and work. This may be all it takes.
Good luck & happy computing! -
Airport Extreme wired network can't assign IP address, but wireless works
*Problem details:*
We have three computers intermittently on, wired into the ethernet LAN managed by the Airport Extreme.
We have a few more computers that connect to the wireless network managed by the same Airport Extreme.
As far as I know, no fancy settings hijinks have been attempted. I manage the router, and I only plugged the Airport into the cable modem and connected all the wires to the computers. The WiFi setup went a similar way -- I just turned it on and it sorted itself out. This was eight months ago, mind you -- everything has been going quite well up until this weekend.
But! I got home from a trip this weekend to discover that all the machines that connected over the wired network could no longer get a connection to the internet. Any machine connected over the wireless network, however, was working just fine. Indeed, my macbook pros couldn't even see the Airport Extreme when I turned off their WiFi, connected them over Ethernet and opened the Airport Extreme configuration app!
The wired machines complain that they have a self-assigned IP address. Sometimes, after resetting everything, they look like everything's fine for a moment. Like I said, ordinarily my macbook pro does not even recognize the router over the wired network. However, after reverting to factory defaults and restarting the Airport, the laptop did see it (until a few minutes went by and it realized something was wrong).
I figured that renewing my DHCP lease would fix this problem, but it did not. Nor did turning off Passive FTP Mode (PASV) under Proxies in the Network configuration pane.
I have tried resetting the router to factory defaults, power cycling the modem and router in various configurations, etc. but nothing has worked. In addition, I have verified that connecting any machine to the ethernet directly from the modem will work, so the problem is definitely being introduced by the Airport Extreme.
So I guess my question is: what do I have to poke to return everything to normal? I'd like working wired and wireless networks again.
*Some last few details:*
The Airport is running 7.5.2, but downgrading to 7.4.2 produced no tangible difference.
I have an Ubee D3.0 modem. All lights are green and blinky except the DS light, which is solid amber (and it is green when the modem is wired directly to one of my computers -- it's only amber when connected to the Airport).
Some of the machines that can't connect to the wired network are PCs, so it's not just an OSX thing.
My roommate's XBOX 360 can connect to the internet over the wired port. It doesn't have WiFi, so I'm pretty sure there's no way it could be fooling me.
Thanks in advance for any advice you can muster.
EDIT FOR APOLOGIES:
I didn't realize I was posting this in the "Airport for Windows" section. While a Windows computer's connection is a concern, I would much rather get my Macs online and deal with that first. I can't figure out how to move the message myself.*An update:*
Several days later, this issue seems to have fixed itself. I suspect there may have been Funny Business on my ISP's end (but then again, it's an ISP). -
My ipad recognizes my home network but will not connect to the internet. When I click on AirPort/preferences at the top of the imac screen it says..."AirPort has a self-assigned ip address and may not connect to the internet". If this is the root of the problem,how can I change ip address?
Ipad will connect no problem to other networks.First thing you need I think is to get your iMac connected to the Internet.
Shut down your iMac and you iPad. Then power off your router. Wait 30 seconds and power up the router.
After the router indicates that it is connected to the Internet then start up your iMac and see if it connects. If the iMac connects to the Internet then your iPad should too.
If this power up sequence doesn't work you'll have to dig into the router setup to make sure it is working properly. -
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I think its has something to do with my AVG antivirus, because this started the same time some AVG Nation started to appear in every new tab i open (and thats also irritating me, I read about it here on support.mozilla.org and it seems that the only solution is to completely reinstall Firefox, but I dont want to lose all my settings) but when i type something in address bar and hit enter it opens the search results in Google.
Please try to help me, I like Firefox but I must switch to Chrome until I fix this problem.
Thanks in advanceFirst, please update to Firefox 32. 22 is no longer support nor is it secure. Then let us know if you still have this problem. [[Update Firefox to the latest version]]
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My mac air OSX10.8.5 won't connect to the internet. It says it has a 'self assigned IP address and therefore cannot connect to the internet'. Network diagnostics is unable to the solve the problem. It happened suddenly for no reason and now I cannot connect except by typing in the configuration settings manually. Please help me!
Use the Airport Utility or log into your wireless device via http and ensure the DHCP/NAT service is enabled. If accessing via HTTP, you will need to manually set an ip within your local subnet (eg: 192.168.0.x).
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Direct-connect inside network with dynamically assigned IP-addresses
I have 13+GiB of files to transfer between two computers (one arch and one Win7) and would rather not spend the day moving them ~1GiB at a time via flashdrives.
I have tried setting up an ad-hoc network on the win7 machine, but wifi-menu fails to connect to it.
I have tried setting up an ssh server on the arch machine and accessing it via PuTTY on the Win7 machine.
I have tried setting up an apache server on the arch machine and accessing it via firefox on the Win7 machine.
I do not have the permissions to statically assign ip addresses on the network, and need to somehow directly connect between these two computers. Any suggestions?5donuts wrote:I've spent the last hour or so trying to set up samba, but I can't figure out how to connect to a Windows shared folder with smbclient, and just cd-ing into the mountpoint doesn't work since access is denied
Post the exact commands that you are using and the exact error messages that you receive.
For mounting windows shares I use variations of the following command:
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Have you tried something similar? It should "just work". -
Computer-to-computer Airport network no dice - "self assigned IP address"
I have spent hours reading posts on this and other forums about this problem with Airport, but none of the fixes have connected me to the Internet. My new iMac has a DSL line coming into it and an Airport card. My eMac has an Airport card too. I am not using a base station. The eMac recognizes the network I created, it even allows file sharing, but in the TCP/IP prefs, I get the dreaded notice about how the computer is using a "self assigned IP address and may not connect to the Internet." So I took one user's advie and set it up to use DHTP manually and I typed in an IP address of 10.10.10.x and my "network status" finally went from the yellow dot of death to green, saying I was connected to the Internet. But my browsers sure don't think so. I turned firewall off. Still no help. Do I have to turn firewall off on the iMac, from which the eMac is getting its Airport signal? I need a firewall, right? "Firewall good," right?
The issue was the IP address until I entered a manual one. Now the issue has changed. I am connected to the network, and at least technically to the Internet, according to the computer's ability to gauge such things, but I'm still not online. I have done the "unplug the DSL modem" thing, and unplugged the computers, and turned Airport on and off, trashed Airport prefs from the Library and all the sensible things people have mentioned online. I am hoping some fresh eyes see this. Can it have to do with my iMac's settings, not the eMac I'm having trouble connecting with? I've spent about 12 hours on this with no luck. Thanks,
GeorgeO.K., I tried to launch the specified site in Safari and it never loaded anything or gave me an error message. The blue filled up the address bar to cover up "http://" but it didn't progress further. The IP address it self-assigned is 169.254.60.164. My iMac which should be Internet-sharing is not sending it a proper IP address.
Both computers are up to date with updates. The iMac has OS 10.4.10, and the eMac has 10.3.9 because I still run Classic mode. I don't know enough about computers to know if those system differences would cause a problem in Airport. They both have Airport Extreme cards. Any idea which settings in the source iMac I'm sending out the Internet signal from could cause this problem? I have personal file sharing on, personal Web sharing, and printer sharing.
In my Network preferences, under my SBC DSL, the IP address looks normal, starting with a 75, but under Airport, it starts with 169.254 like the eMac's IP address setting. I don't really understand these technical issues, and I've never dealt with a wireless network before. I guess I can always pony up $180 and use a base station, and problem solved. I would think. But computer to computer Internet sharing is supposed to work, so now I am obsessed with it. Thanks again. -
Linksys Router- Assign IP Address?
I have a Linksys router with my Mac Pro. I have my mac pro wired into the router but it is a wireless router so there are other things on the router as well such as the Xbox. I have to have certain ports open for the Xbox to work and my torrent client to work as well. Sometimes the router auto assigns the IP to my computer and then I have to go into the router settings and change which IP has which ports open for it. Is there a way to assign my computer an IP so it gets the same IP every time and same with the Xbox?
Open Network preferences click on the Advanced button then on the TCP/IP tab. Note the IP address assigned to your computer by the router, then change the TCP/IP IPv4 Configure drop down menu to DHCP with manual addressing. Then insert the IP address your router was using under the previous setting. Click on the Apply button. Use this IP address in your port forwarding configuration.
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Had hard drive failure on MacBook 1.83 GHz Intel Core Duo, so had to rebuild the OS on new drive. Was on Lion 10.7.5 prior to failure, but had to reinstall Snow Leopard 10.6.3 since that was most recent OS on media I had. After finally getting ethernet connection to router working, was able to get to internet and download / upgrade to 10.6.8. I assume I can probably buy the upgrade to Mountain Lion 10.8 from there.
Problem is this, Airport will not stop self-assigning IP address for my wireless connection, and unless I can get wireless back on this laptop, doesn't make a lot of sense to continue the rebuild and reinstall of all the software that was on it prior to HD failure. Only way to my home network and router is ethernet now. Everything else on my network (Apple MacBook Pro laptops, iPhones, desktops, and non-Apple printers and laptops) is hooking up to router wirelessly fine.
Any ideas how to resolve successfully so that the airport will stop self-assigning and allow the router to assign the IP address?When see the beachball cursor, note the exact time: hour, minute, second.
These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.
Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad and start typing the name.
The title of the Console window should be All Messages. If it isn't, select
SYSTEM LOG QUERIES ▹ All Messages
from the log list on the left. If you don't see that list, select
View ▹ Show Log List
from the menu bar at the top of the screen.
Each message in the log begins with the date and time when it was entered. Scroll back to the time you noted above.
Select the messages entered from then until the end of the episode, or until they start to repeat, whichever comes first.
Copy the messages to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
The log contains a vast amount of information, almost all of it useless for solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.
Please don't indiscriminately dump thousands of lines from the log into this discussion.
Please don't post screenshots of log messages—post the text.
Some private information, such as your name, may appear in the log. Anonymize before posting. -
Self Assigned IP Address redux
I am getting the "Self Assigned IP Address" in my Airport connection and I can't troubleshoot the problem.
Here's my setup and what I have been looking to accomplish..
I have an iMac G5 with a built-in Airport Extreme card running Leopard 10.5.3. I have created a network to provide my AppleTV and my work laptop with access to the internet. I've turned Internet sharing on, and have security set to a the WEP 128 key..
Recently I had to exchange my AppleTV for a new one, and during the 2 weeks I was without AppleTV - something has changed (and as I think through the issue, I'm not certain about when the last time I played youtube or purchased content - maybe the new appleTV doesn't have anything to do with it, and it was a software upgrade), as I am no longer able to access YouTube content or the iTunes Music store to authorize my purchased content or to purchase new music/movies. However, I am able to watch movie trailers, and preview songs. It connects to the network fine, shows a strong signal, but something isn't quite right.
I've performed about every known solution to the AppleTV problem, and have an open post over in the AppleTV area, but in tracking down my issue, I see that my Airport connection is showing that it has a "self-assigned IP Address" and my not be able to connect to the internet. My thoughs are that if i get the self-assigned IP address problem solved, I'll solve the ITMS/YouTube issue on the AppleTV.
My internet connection is via Verizon DSL, with a DSL modem, connected directly to my iMac with an ethernet cable. (no external router/firewall)
I find it interesting that I can watch trailers, preview music from ITMS with the 'Self-assigned IP' but not access ITMS for purchases, etc.
I do not have any expertise in networking and for the most part am just following what posts I've seen out there suggest to try - trashing the com.apple.airport.pref's - restarting in 'Safe' mode, etc. Rebuilding the network connections from scratch, etc. Repairing Keychain access, disabling the built in firewall, etc. Just can't get by this issue.
Anyone with any thoughts?hey guys...I found the problem...it helped me very much just try to change the wireless mode from 11bgn mixed to 11bg mixed...do this from router settings . . .I guess this will help you
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Self-assigned IP address, try to connect to pc
I do a lot of file transferring from my mac to another pc laptop, so I've got them hooked together with an ethernet cable. I had this issue in the past, where I'd try to connect but my network settings kept saying the "ethernet has a self-assigned IP address and will not be able to connect". The solution I found to fixing this was to open up the Advanced Settings, and change the IPv6 configuration to "Link-local only" and then everything would work perfectly.
I upgraded to Yosemite yesterday, however, and now that solution no longer works. Still getting self-assigned IP. How can I fix this??I checked my sharing options, and everything looks to be on. I also have the yellow circle, but I can never get a connection unless it goes green. Before I upgraded, that was the issue before; it would be yellow until I changed the IPv6 connection to "link-local only" and then the ethernet connection would change to green, and I'd have no issues. Now, when I change it to "Link-local only" and hit apply, nothing happens, it's still yellow.
I tried to connect to the server just to see, and it won't connect. I get an error that says "There was a problem connecting to the server "AMANDA-PC" Check the server name or IP address, and then try again. If you continue to have problems, contact your system administrator." -
Self-assigned IP address issue after upgrade
I do a lot of file transferring from my mac to another pc laptop, so I've got them hooked together with an ethernet cable. I had this issue in the past, where I'd try to connect but my network settings kept saying the "ethernet has a self-assigned IP address and will not be able to connect". The solution I found to fixing this was to open up the Advanced Settings, and change the IPv6 configuration to "Link-local only" and then everything would work perfectly.
I upgraded to Yosemite yesterday, however, and now that solution no longer works. Still getting self-assigned IP. How can I fix this??I took the following from the Aztech website:
8) Can Aztech HomePlugs work with Apple MACs?
Yes they can, Aztech HomePlugs work with Apple MACs. However, there is a requirement for using the Utility software. The Utility software will only run on Microsoft Windows 98SE / ME/ 2000/ XP/ Vista.
Which contradicts itself, if the Utility is required but only runs on Windows, how does that work on a Mac? -
Self assigned ip address-Could someone help me?
There are two Powerbooks in my house which connects wirelessly to the internet and an airport express that joins the existing wireless connection.
When I'am using mine, I can connect without any problem, but when my girlfriend uses her mac we both get the self-assigned ip address. The only way to connect after that is by reseting the router.
This is what i did in both computers after I read some posts here (BUT THE PROBLEM CONTINUES) and I don't know what else to do:
"....1. Reset Open Firmware. As you turn on the machine, press & hold CmdOption+OF until you get a screen that says "Welcome to Open Firmware". At the prompt, enter "reset-nvram" (without the quotes). Press return. Enter "reset-all". Press return and the machine will restart.
2. Open network preferences. In airport, go to advanced. Check the box that says disconnect the wireless network when logging out. (It seems incredible that it would work, but apparently it sometimes does.)
3. Restart in "Safe" mode (hold down "Shift" while restarting). Once in Safe mode simply restart again in regular mode. http://docs.info.apple.com/article.html?artnum=306879
4. Go into your keychain and find the password key for your network. If you connect to a WAP it will be the name of that WAP. Then in the key click on the access control tab. It probably shows selected applications. Change this to "Allow all applications to access this item"........"
Thanks.
K.My wife's PB G4 was doing the same thing. Worked fine at the Apple Store but had issues on my all Apple network at home. After resetting the routers, recreating the network etc I finally disabled the firewall and all seems to be working.
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