MacBook Air :: Unable To Get IP Address From DHCP Server

Jan 9, 2011

I've recently purchased my first Mac (the new 13.3 inch air model). I seem to be having a bit of a problem with wireless networking, though. It seems that my Mac will reconnect to my wireless network perfectly after resuming from sleep mode just fine for a few days, but after those few days, it will mysteriously stop being able to get an IP address from the DHCP server (my wireless router). My PC is able to connect to the network just fine and always seems to be able to get a new address, but the Mac just loses the ability. I have found that the only way I can get the Mac to start grabbing an IP address from the router is by going into the router settings and changing the RIP mode to a value other than what it currently shows. I generally try to stay in RIP_2B mode, but I change it to some other random value whenever it stops connecting.


OS X Server :: Unable To Use DHCP With Windows XP

Jun 29, 2005

I have a Mac OSX Server (10.4) connected to a switch with various Airport Express terminals around the place. Macs can connect to the network wirelessly (with 128 bit WEP) and WIRED totally fine... but when I try and connect a windows PC either using wireless or WIRED... an IP address isn't assigned. Windows just says "Limited or no connectivity"...

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OS X Server :: DHCP Grab My New Addresses

Mar 8, 2007

The service shows running but will not give an IP address to Mac or PC. As the leases are running out on the machines they are not being renewed. I restarted the service and then the server. Then I reset the DHCP Client list.I turned on a computer lab so that they would all grab a new address.... none of them did. I logged on to a computer and told it to renew its DHCP address and nadda. If i assign a static ip they are fine

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Hardware :: Airport DHCP Fails To Get Address (Mac On Windows Network)?

Jun 7, 2006

I am a comitted Mac switcher trying to put my lovely new MacBook onto the office Windows network. I can connect to the office wireless network (WEP key etc) and the little radar Icon in the menu bar lights up. However, I cannot get the MacBook to obtain an IP address via DHCP. I just keep getting the default self assigned address (169.....).

However, when I connect to the network via a cable using the built in ethernet connector, I get the DHCP address just fine and everything works OK.Also, if I assign an IP address manually to the wireless card (checking it is a free address!) it accepts the settings but I cannot network, not even a basic ping of another machine on the local internal network (all our internal machines are using 10.0.0.x addresses and sub net)The DHCP server is not in the wirless router but is a Windows server machine.This is driving me crazy. I have called Apple care and they just dont want to know because there is a Windows machine in the mix. I expected better from them,

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Lion Server NAT Destroying DHCP

Mar 29, 2012

I have recently purchased a USB Ethernet adapter so I can setup NAT on lion server that runs on a MacBook. I was shocked when it blew away my DHCP Config after I set up NAT, but I stuck with the scope it chose and added the correct DNS and gateway settings.Whenever I start DHCP now, the logs tell me the Config cannot be found, and it blows away all of my modifications to DHCP. On top of that, it won't hand out any addresses.If I stop DHCP, the system logs start telling me that "natpmpd" has started, and then it begins to hand out addresses. The problem with this is, I can't make any changes to the DHCP settings it uses, which means my clients are now getting the incorrect settings for the gateway and DNS.Also, when I modify the Scope with DHCP stopped, the logs tell me it cant update the subnet because it was not found.

MacBook, Mac OS X (10.7.3)

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Mac OS X Lion Server :: Get DHCP To Update DNS?

Apr 14, 2012

I have setup OS X Lion server to act as the DHCP and DNS server for my local network. DHCP provides gateway address and the local DNS server address.   DNS is set to forward to my ISP DNS servers. 'A' records and 'PTR' records have been created for the various servers on the network and I am able to resolve the servers via dig by name and address. I can also access the internet without issue. DHCP is handing out IP addresses to Windows clients on the network but I am unable to locate the machines with DHCP addresses in DNS either by IP address or FQDN. The windows clients are able to access the internet without issue. Looking at the DNS log there does not appear to be anything recorded when the DHCP address is allocated. Is there something special that needs to be setup either in DHCP or DNS that will allow DHCP to record the host and address details in DNS?

Mac mini, Mac OS X (10.7.3)

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Mac OS X Lion Server :: Email Address Requires Host Name In Address Field

May 5, 2012

I'm trying to setup mail on Lion Sever (7.3). The only way I can get it to accept incoming mail is to specify the whole FQDN of the server in the address.For example the domain name is and I have a user set up called john. Sending mail to works.

But sending mail to (which is what I want) returns an error:
554 554 5.7.1 <>: Relay access denied (state 13).

For internal DNS, I have: - primary - alias - [URL] - alias server.example.comMX record [URL]

I see references here to problems in mail on 7.3 but not this specific problem.

Mac OS X (10.7.3)

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Mac OS X Lion Server :: Address Book Server-file Not Found

May 1, 2012


This is the error log im getting back from the addressbook server error log. I noticed that the push notification is not working for the addressbook server.

Info:Mac mini, Mac OS X (10.7.3)

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OS X Server :: Server's Static IP Address Used By Another Device?

Nov 4, 2006

The following error comes up on the server's screen when I turn on the stations:"IP is used by 00:0d:95:34:ee:60"Another device in my room or building is using the server's static IP address, this causes connectivity problems. I loose connection to the server. How do I find out what device is causing the problem and what do I do to resolve the issue? I am afraid it might be the CISCO 290XL switches used in the lab. I used ARD to check the Ethernet ID's and didn't come up with any workstation using that Ethernet ID or address.

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MacBook Pro :: Changing The Server Address Of Software Update?

Sep 16, 2010

I have a MBP 15, the computer service of my company has pointed the server address of Mac Software Update to an internal server. It makes me cannot run Software Update at any place but my office. How can I change the address back to the server at [URL]?

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MacBook :: Using Wireless Shenanigans - Changing Back To Dhcp?

Jul 28, 2009

I recently got a white macbook while i am deployed in iraq, and our wireless signal here kinda blows, but at least it works. The only issue i have, seems to be that when i am connected to an access point, my macbook will randomly loose signal, and i end up having to go into the airport preferences, change from DHCP to BOOTp, and it will refresh, then come back on. If it looses signal again, i just change it back to DHCP, and then it works again.

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MacBook Pro :: Ethernet Dynamic DHCP Not Working On Mid-2010 With 10.7.3

May 14, 2012

Ever since I upgraded to 10.7.3, my mid-2010 cannot connect to to internet via Ethernet any more (wireless works fine). 

Basically, the Network utility GUI shows that a correct IP address has been assigned via DHCP, but I get no internet. 

If I now check the output of 'ifconfig', I see 'en0' having a local IP address assigned, i.e. or similar. 

Seems like a software bug of some sort. Is it getting fixed in 10.7.4?

MacBook Pro, Mac OS X (10.7.3)

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MacBook Air :: Warning Another Device Is Using My IP Address

Apr 4, 2012

What do I do if I receive a warning that another device is using my ip address on the macbook air?

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MacBook Air :: Is There A Support Email Address For Apple

Jun 14, 2012

Is there a support email address for Apple?

MacBook Air, Mac OS X (10.7), 2011

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MacBook Air :: Sync Address Book With Gmail?

Jul 1, 2012

I do not manage to synchronize my gmail contacts to the mac address book. Could you please give my an advise how to do.

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OS X Server :: Going To Home Address - How To Stop It

Aug 12, 2007

Whenever I access my mac though my ip, local ip,, or the part of my domain linked to it, it usually will change the url to "Imac.local". How can I stop this?

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OS X :: Trying To Send Email - Server Not Recognize Address

Dec 25, 2009

When trying to send an email on my mother's .mac account the following error appears. (Her account is - The message can't be sent because the server doesn't recognize "'"-. I'm wondering if this is because there is an apostrophe after the first quotation mark. If so, how did it get there and how could it be removed?

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OS X Server :: Access Address Book Through LDAP?

Dec 23, 2010

I've a 10.6 Server. On it, lots of services are enabled such as Address Book Server. I've a copier enable to connect to an LDAP server to have access to mail, fax numbers and more of users/clients. I would like to connect this copier to a user's Address Book. But, user's address book is on the server, and it's a CardDAV address book. Is there a way to have access to this address book trough LDAP?

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ICloud :: Migrate Address Book Server To It?

Apr 16, 2012

I was hoping to export an archive of Address Book which is running on my 10.6 server so that I could import it to iCloud's address book. 

How can I do this?  I can't see any functionality to import in iClouds's Address Book. 

Do I have to have all of these server contacts "On My Mac" before iCloud will play ball? 

Mac OS X (10.7.3), Server 10.6, iMac 10.7

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MacBook Air :: Transferring Address Book Contacts And ITunes Playlists

Nov 2, 2010

Ok so I got my new MBA which I'm typing on right now and I love it (I need to update my sig...). I got my most important data over, but all I need are my address book contacts and iTunes playlists and song/movie/tv show ratings.

I copied my contacts from Application Support under Libraries. They are under Address Book in the folders "Metadata" and "Images". All the things in Metadata seem to be vCards, but when I double click one to open it, it just opens Address Book and nothing happens.

Also, when I transferred my iTunes stuff over, everything's perfect except I'm missing all my song and album ratings (488 albums and 4226 songs, all hand-rated). I'm also missing my playlists which are VERY important.

I have a backup of my whole hard drive from my MBP so I should be able to access these files, but does anyone know how or where? I copied over my whole music folder in Finder and I'm still missing my playlists and ratings

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OS X V10.6 Snow Leopard :: How To Remove Server Address

Apr 10, 2012

I have a MacPro with Snow Leopard.  How do I remove "server addresses" where other computers are no longer in existence.  When I go to "Go/Connect to Server" I have some addresses which are no longer valid.  I can highlight them in the "Favorite Servers" list and hit "Remove" and they will disappear only to come back the next time I open the "Go/Connect to Server".   For example, one of the server addresses is "smb://xps630i-PC/ddrive" and was used to link my MacPro to my PC.  

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MacBook Air :: Not Auto Assigning IP Address, Won't Join Wifi?

Nov 18, 2008

It's the strangest thing, my wife's MBA (v1) will randomly refuse to connect to our home wifi network (cast by a 500GB Time Capsule). What seems to be happening is that it will connect then disconnect at bootup, it will say no preferred networks are available (when the home network has been configured!) and refuse to assign an IP address to the MBA. If I manually select the home network from the wifi icon, it will diplay security password, and then say this is invalid (when it is perfectly valid and the one used by my own MBP and iPhone)... this seems to happen only on our home network, any other works fine...My own MBP is fine. This is driving me crazy and I haven't found anything on the web on this.

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OS X Server :: Local Host Loading SAME Page Regardless Of Typed Address?

Apr 2, 2009

Following an online video to learn the proper directory structure, I saw that the author was not running it through MAMP but the local Sites Directory.

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Mac OS X Lion Server :: Save Any Address In The Webmail Addressbook?

Feb 13, 2012

When I try to save any address in the webmail addressbook, it says "An Error Occured while saving." It's probably a permissions problem with the addressbook database RoundCube uses, but I'll be darn if I can find it...

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OS X :: How To Create A Network Dhcp

Nov 26, 2010

When we share internet connection through ad-hoc wireless network, each individual connecting to our network will be assigned with an unique IP Address and other required fields will be filled with proper data(Gateway and ..).

I used this feature to access my iPad through wifi, and had no intention of sharing an internet connection.
Now that I don't have an internet connection to share, my computer doesn't give any IP to my device, therefore my computer is unable to see my iPad on the network.

I also tried "Create network" feature of mac, but again, since IP addresses have been assigned by self, I'm not able to see my iPad on the network.

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OS X :: Detecting Exchange Server Crashes Mail - ICal And Address Book

Aug 29, 2009

Having installed Snow Leopard today on my macbook, I was keen to set up Mail, iCal and address book with my exchange account. However, when I use any of these apps to detect my account settings, it crashes the respective programs. Entourage web services manages to connect my accounts but I don't find it particularly user friendly. Has anyone had a similar experience? If I can't resolve this, is there a way to manually configure accounts in the new apps?

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Mac OS X Lion Server :: Make Subdomains Default To External Address?

Apr 9, 2012

I have set up DNS with the following settings:


I thought I may be able to use a wild card (url..) but Server Admin does not allow me to do that, some documentation reccomends against it and I dont think that would work for [url].

Info:Mac mini, Mac OS X (10.6.8)

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Mac OS X Lion Server :: Delete (reset) Ical And Address-book On It?

Jun 13, 2012

I have change some DNS-Entries on my lion server. (new hosttname). Ich checked everthing with "sudo changeip -checkhostname" and it seems to work fine. Also the OD. Now it sorted out that i have some Problems with my ical & adressbook server. How can i delete them an make the straight new, so that i got a new entry for the old


At this moments a couple of time a day it complain that their is now connection for this Calender. Also the Adressbook refuse to save new entries. I both want to reset this ical & adressbook server part, but i can't find how to do it? 

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OS X :: Need To Renew DHCP Lease After Restart

Oct 31, 2009

When I make connection with my router I do not have internet, but I go to my network options and I click TCP/IP and then "renew DHCP-lease". The "Router" number change from to, and then my internet works. But if I have to restart my mac for some reason, it jumps right back to, and i have to click "renew DHCP-lease" again. I have this on my both Macs (MacBook unibody allu, and MacBook white and also on my iPhone).

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Mac Mini :: Server And MacBook Air Superdrive

Oct 30, 2009

The Apple party line seems to be that the Mac Book Air Superdrive only works with the Mac Book Air and the new Mac Mini Server. Is this because of hardware, firmware, software or marketing? Is there an actual hardware difference regarding the power rating of the USB interfaces on the server version of the Mini Server compared with the standard Minis? Is there something special in the boot ROM of the Mini Server that allows it to use this drive? The boot ROM version on my server is MM31.00AD.B00, is this the same on the other Mini models? I'm guessing I'd still be able to continue using the drive if I loaded the Mini Server with Snow Leopard Client.

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MacBook Air :: Remote Access To Email Server?

Mar 15, 2012

I have a ne wissued company mac notebook, also new to mac.  I am at a hotel and cannot send out mail via the mac mail program.  I do receive all my emails.  The message I receive is the outgoing mail sever is offline.  during my trip, I had a layover at an airport and received/sent emails without a problem.  Something at my hotel put the outgoing mail server offline.

Mac OS X (10.7.3), remote access to email server

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MacBook Air :: Way To Run SQL Server On MAC

Jun 17, 2012

I current use a PC for work but would like to come back to MAC.I have SQL Server loaded on my PC laptop so that I can load two server type programs.I know that I could do bootcamp but would prefer not to install windows on the MACAIR.Is their a SQL Server like program for MAC?

MacBook Air

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OS X :: Network Can't Locate IP/Router Using DHCP?

May 8, 2008

Having trouble on my mac while trying to connect to the internet using the built in Ethernet.

It says under network: Built in Ethernet is currently active. Built in ethernet has a self assigned IP address and may not be able to connect to the internet.

I hit the IPv6 and/or DHCP and it locates a IP just not a router number. Is this what is stopping it from connecting? Please help as I have an AP test I would like to study for....

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Oct 23, 2010

I have downloaded the new version of Skype and it just won't let me log on. It says failed to log in: unable to connect to server. I try logging in my iPhone and Pc and they're fine. I have even downloaded the older versions of Skype and it's the same error.

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Mac OS X Lion Server :: Profile-manager Puts Wrong Mail Address In Settings?

Feb 7, 2012

I have setup profile manager. Trusted profile is installed.When a user logs in the profile is added. In the profile the users email address is correct. [URL] When i turn to Mail, agenda and contacts in the system preferences the mail address is displayed as : [URL]This is also being displayed in the Mail account settings. 

Multiple Systems, Mac OS X (10.7.2)

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