Snow Leopard Network Problems

Hi all.
I'm setting up my second Snow Leopard Server machine and I'm having the most frustrating networking problems.
I'm setting up a server with two NICs, and for some bizarre reason connection will NOT work. Trying to ping within the subnet of the inoperative connection produces "no route to host" errors. Switch the IP configurations between the two NICs, and the problem follows the primary configuration. The same network settings work correctly on a different machine, so the problem is definitely software.
I can't help wondering if this is related to source-based routing in 10.6. But I've tried flushing the routing table to no avail.
This exact same issue happened with the other Snow Leopard server I set up. After a few days of idling, the problems magically resolved themselves. Unfortunately, I don't have time for that to happen with this server.
Any suggestions?

The forums are littered with dual-controller subnet routing discussions; it's a very common issue.
Easiest fix: don't use a Mac as an expensive (and slow) IP router (or NAT box). Use an external firewall.
If you really want to wade into IP routing (and do you actually have enough network traffic to warrant lighting up two gigabit Ethernet connections right now?) then poke around for the existing discussions of setting up the ordering of the controllers and establishing subnet routing live and after each reboot.
I'm probably going to end up writing an article and posting it, as this arises way too often, and folks are understandably having issues with locating the problem given that most (understandably) don't know they need to look for subnets and static routes and such.
Existing threads including [this|http://discussions.apple.com/thread.jspa?messageID=10688941] and [this|http://discussions.apple.com/message.jspa?messageID=5697532] are reasonable starting points for your dual-NIC quest.
One other related gremlin that crops up here is the subnet addressing assignments; you'll usually want to have the (co-resident) NICs using addresses in separate subnets or routing can get squirrelly.
Or plug in the external firewall (which has other advantages) and use it as the router and firewall and NAT box for your LAN.

Similar Messages

I have a mac os x snow leopard. my problem is that when i go to the ethernet settings it shows 'not connected'. i called the internet person even he couldn't fix it PLEASE HELP!!!!!!!!!!!!!!

i have a mac os x snow leopard. my problem is that when i go to the ethernet settings it shows 'not connected'. i called the internet person even he couldn't fix it PLEASE HELP!!!!!!!!!!!!!!

System Preferences > Network > Ethernet? If that shows "not connected" that is all your Mac knows. As far as it is concerned there is no cable connected to the port on your Mac, or the other end of the cable is either disconnected or connected to something that is broken.
Try another cable. If the cable is broken you will also get that status message. If you have exhausted all of these possibilities, the only remaining cause is an inoperative port on your Mac.

Mac mini and Snow leopard wireless problems

Hi,
I got mac mini running snow leopard to our office from another branch, this is recently brought mac mini with snow leopard installed,
But the problem is I cannot connect to internet using wireless connections. Reading other posts i found out that there is a snow leopard issues with connecting to wireless network, but this problem seems to unique. When i connect to wireless network it shows me that, mac mini is connected to wireless network but doesn't take ip address from dhcp , its show some self assigned ip which is 169.254.226.163, but my network address are 192.168.1.*, ethernet works fines,but in wireless even when i gave manual ip , it connect but i cannot connect to internet neither i can ping to router.
I tried various methods suggests in forms, like deleting network preference files in /Library/Preferences and ~/Library/Preferences and also deleting network connection and adding new one, even updating to 10.6.3 but nothing works for me,
My macbook nicely connected to wireless and get ip, even PC connect nicely this issue is only with Mac mini
Could have suggest me how can i fixed this, Thank you very much,
Best Regards,
Waruna.
Message was edited by: warunacds

Thanks DaddyPaycheck for your initial response. Before I jump onto the phone with Comcast couple of questions that I have for clarification purposes:
1) Are you implying that I must link my blabla.com address to that static IP address through my Domain Provider? See following example:
Record Type Record Host Record Answer TTL
A *.blablat.com >>Static IP<< 300
2) The current IP I have been given 60.172.151.254, why is that not static or how do you know it is not static?
3) When executing the command host in terminal for this IP address it returns the following: c-60-172-151-254.hsdl.co.comcast.net which coincidentally is the same as primary DNS it recommended during the initial configuration of the Mini Server. What does this mean? When I enter this in Safari it results in 'Safari can't connect to server'.
4) Executing the same command for my domain name 'blabla.com' it results in my 'internal' IP address '1.0.10.9'.
Thanks in advance for any clarification you can provide,
Tiest.

MacBook Pro Snow Leopard Networking Issues

Has Apple acknowledged the dropped network connection issue with Snow Leopard and Macbook Pro? I've seen many posts and read several blogs with suggestions for fixing the issue, but all the fixes are temporary. The problem still persists.
It happens on wired and wireless network with Safari and Firefox. I've installed all updates and tried all the posted fixes.

Change your router channel. Sometimes this all you will have to do.
System Preferences/Internet & Network/Network
Unlock the padlock
Locations: Automatic
Highlight Airport
Click the Assist Me button
In the popup window click the Diagnostic button.
System Preferences/Network- Unlock padlock. Highlight Airport. Network Name-select your name. Click on the Advanced button. Airport/Preferred Networks-delete all that is not your network.
Place a check mark next to "Remember networks this computer has joined." Click the OK button and lock the padlock. Restart your computer.
http://support.apple.com/kb/TS1920 Mac OS: How to release and renew a DHCP lease
No internet connection (wireless)
Check to see if an extra entry is present in the DNS Tab for your wireless connection (System Preferences/Network/Airport/Advanced/DNS).
Delete all extra entries that you find.
Place a check mark next to "Remember networks this computer has joined."
How to diagnose and resolve Wi-Fi slow-downs

Upgrade from Leopard to Snow Leopard - multiple problems

I have a MacPro 4.1 (Mid2009) 2x2.26 quad-core w/ 8gb ram. My previous OS was 10.5.8 Leopard. I purchased the 10.6.3 Snow Leopard upgrade disk, performed the upgrade install, then installed the latest updates from Apple to 10.6.6.
Now the following problems occur:
1) I can't make a folder of alias's from my Applications folder. They all show up as gray squares with the text name below them. Opening the folder brings the infamous 'rainbow beachball of death' and I have to relaunch the Finder a minimum of twice to four times, at which point all the aliases then appear as normal icons.
2) My generic e-Sata controller card is completely ignored by the OS. System profiler "sees it", but nothing connected to it will mount.
3) My Matrox O2 Rack unit successfully installed, as I was able to upres VOB files via Premiere CS5 and output that upres to a BlackMagic Decklink card using Final Cut Pro as the capture software - both running within in the one MacPro. On this initial install it did work quite successfully. The next day, however, after turning the MacPro on, the OS reported that the Matrox O2 host connector box was an unknown Network connection and prompted me for Network configuration!
Sounds to me like some OS firmware/chipset abnormalities. But what to test and where????
- Scott

Maybe not. Start by doing this:
Repair the Hard Drive and Permissions
Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer. Now restart normally.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
Get a utility such as TinkerTool System or Snow Leopard Cache Cleaner and AppleJack. For the former clear all user, system, and font caches. For the latter install according to documentation then follow instructions on using AppleJack.
Next, boot into safe mode. See how that goes. Note that wireless and all third-party extensions are disabled in safe mode. So your eSATA card and Matrox device will not work if they require proprietary drivers.
Also, create a new user account. Log into the new account and see how that goes. This will not disable wireless or third-party drivers.

New Snow Leopard server problems -need advice.

hello everyone. I just setup a mac pro with Snow Leopard server to replace our G5 which was setup up for simple file sharing as a fake server and am having several challenges listed below:
*I've made sure the new computer running SL server has the same local name and IP address as the previous G5 (now off of the network)
- Our windows (Vista) computer cannot see the server on the network. This was not a problem with the G5 and SMB filesharing.
- I cannot access server preferences due to this error: "Unable to set node credentials for /LDAPv3/127.0.0.1 with the record name server.mydomain.com$ There may be a problem with the Open Directory service."
- server admin is treacherously slow both locally and remotely.
I cold really use some help on these folks. I'd sincerely appreciate it.

Thanks for your input everyone. I turned off DNS (just to see) and it's still slow. Frankly I am not sure if I even need it yet. My goal is only to setup local services and then open the server up to the WAN.
My provides the DNS I suppose. MY ISP points to my WAN IP and my router directs that to my server's internal IP. At least that's how things are setup now and left over from when i was using Snow Leopard client as a fake server (for filesharing and DayLite).
I did setup the initial DNS settings of Snow Leopard Server after the install to the computer's IP address which I assigned manually and left the rest to get from my router's DHCP server. I setup the zone (home.mydomain.com)
Any ideas for the sluggishness.

Snow Leopard clock problem Trying to upgrade to Mavericks

I have a class set of 28 mac books that I am trying to upgrade to Mavericks from Snow Leopard. All have the hardware to run the OS. The problem I am having is all the computers have clocks that are incorrect by a few minutes either way, and I cannot get them to talk to the app store. What can I do to get this problem solved? (By the way, our district network is designed and run by mac-hating PC nazis, so I am going to try this at home tonight).

Thanks. I'm going to do that. The intersting thing... I brought one of my student computers home and had ZERO problems upgrading here. I have my external drive that I use for re-imaging the machines in the summer, so the plan is to load Mavericks on it at home, then add it to all of the school machines from the drive.
Thanks for your help.

Snow Leopard networking conundrum.

I'm new to Snow Leopard but I've been networking my various Macs since System 7, and every upgraded OS has brought its new challenges; this one is no exception. I have my older desktop with two drives (One called Tiger, one called Panther, for obvious reasons), each holding files I want to access from my Snow Leopard MacBook. Shortly after upgrading, I managed this, much as ever before in earlier OSs: Picked the desired drive, logged on as Registered User and so on. At that time the Connect window gave me both drives and User names as options, just as in earlier OSX versions.
But that's suddenly changed; now, whether I Browse for servers (Command-K) or use the Network icon(Shift Command K) all I get as options are the User accounts—badged as if they were removeable volumes—but the drives themselves are not visible. However, the overall computer does show in the Network window, but double clicking it only gives the same User/volumes as the Connect to server… window.
By sitting at the desktop, and opening its Sharing preference pane I discovered that "…other users can connect to your computer at <its name>.local", and sure enough, typing that into the Connect to server window did the trick, revealing the two drives as connection options (along with just one of the seven available Users) Then all I had to do was figure out how to get the drives into the Favorite servers window for the future.
So I solved my problem, but I don't for the life of me understand what's going on, or how it's supposed to work. Nor why it has worked one way before, and another recently. Can any one shed any light?

A bootable clone is a copy of the system disk that if made properly will boot your Mac in the exact same manner as the original system disk. I know of two applications that are capable of making bootable clones. They are CCC or SuperDuper. I use SD.
You need an external drive to point the application at in order for it to make the bootable clone.
In order to test the clone, hold down the option key while booting. This should bring up all of the bootable devices that the Mac finds. Select the devices with the clone and allow the Mac to boot. If it does you can then proceed to the upgrade knowing that anything goes wrong a working system is only a reboot away. I know that always give my warm fuzzy feelings at upgrade time.
Allan

Time Machine and Snow Leopard installation problem

I'm trying to install Snow Leopard, but keep getting an error saying that my hard drive is used for time machin back ups. I have unplugged my external device, turned off time machine, yet this keeps happening. What am I doing wrong? I have been able to install Leopard on the computers that I haven't used time machine.

BusyChris18 wrote:
1) Do I have to do anything special with Time Machine BEFORE I install SL? I have been doing regular backups with TM.
Do a "final" backup and turn TM off.
2) should Time machine disc be off/disconnected when I do the install?
It's safest to eject and disconnect it, "just in case."
3) After I reconnect TM disc after SL install, do I have to "migrate" stuff from TM? OR will it just do a new backup and work like normal from that point forward.
If you do the normal install, there's no migration needed. 99.9 % of everything will be fine. In some rare cases of 3rd-party apps putting things in unusual places, there may be a problem, and you may need to re-enter some 3rd-party app purchase codes.
If you erase the drive, then install SL, then yes, of course, you'll have to transfer your data. There should be no reason to do that, but some folks seem to do it out of habit. If you do that, when your Mac boots up again, you can transfer your data from the TM backups. And if you do that, I'd strongly recommend making a separate full backup on a second external drive, again "just in case," preferably a "bootable clone." CarbonCopyCloner and SuperDuper are the most common. (There was a post here just last week where someone did this, the restore got to 99%, then BAM! the TM disk failed.)
TM backups should just continue normally, although there will almost certainly be a long "Calculating Changes" phase (used to be called "Preparing"). And they've added a progress bar, which doesn't seem to be particularly accurate.
However, it may try a new, full backup. If it does, cancel the backup and do a Restart. That may reset whatever confused it. If not, there's nothing you can do to prevent it.
4) Will I be able to access files that were backuped when I have just Leopard?
Yes.

Mac Mini core solo 1.5gb snow leopard installation problem.

Before I tried to install snow leopard I was in the middle of using the restore discs and before I was thinking about it I just turned the computer off when it asked for disc 2. Now I cannot do anything with this computer, turning it on goes to the installation menu and It just prompts for the second disc which I do not have. All my menus are disabled such as disc utility and can't start a fresh install. Also when I turn the computer on and hold the alt key down with a usb keyboard I do not get the option of selecting the snow leopard disc when the option of the hard drives come up. It just ejects the discs. Also tried holding down the C key to boot from dvd and no luck. Any way to get around this or another command to try?

Sounds like your optical drive went out. Either get it fixed or use an external USB CD/DVD drive. You might try another disc first to eliminate a problem on your install disc. Sometimes scratches and finger prints on a disc can cause problems.
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Snow Leopard Install problems on Macbook Pro with bad optical drive

I've tried this (refer to article below) to install Snow Leopard on a Macbook Pro with a bad optical drive, but I am not able to choose a wi-fi network, or install disk after startup. Is there something else I need to do?
To use Remote Install Mac OS X or Mac OS X Server:
Insert the Mac OS X or Mac OS X Server Install Disc into the optical disc drive of the other computer.
If the other computer is a Mac, open /Applications/Utilities/Remote Install Mac OS X. On Windows, choose "Remote Install Mac OS X" from the Install Assistant.
Read the introduction and click Continue.
Choose the install disc you want to use, and click Continue.
Choose a network connection: AirPort, if you are using an AirPort network, or Ethernet, if the other computer is on an Ethernet network and you have an optional Apple USB Ethernet Adapter connecting your MacBook Air or Mac mini to the same network. Click Continue.
Restart your MacBook Air or Mac mini and hold down the Option key as it starts up, until you see a list of available startup disks.
Click Continue in Remote Install Mac OS X.
If you chose AirPort as your network in step 5, on your MacBook Air or Mac mini choose your AirPort network from the pop-up list.
If the network is secure, you will be prompted for a password. You can enter a private network name by choosing the ellipsis (...) and typing the name.
If you chose AirPort as your network in step 5, when you see the AirPort status icon indicating signal strength, click Continue in Remote Install Mac OS X.
You can now reinstall software, reset your password or run Disk Utility using instructions from the User's Guide.

Are you able to connect the two via Firewire cable? If so you can boot the MBP into Target Disk Mode. Then boot the other computer from the OS X installer disc. The installer should detect the hard drive of the MBP as an eligible target destination.
If you have a spare hard drive or at least 10 GBs of usable space on an external drive, then you can create a small 8 GB partition on that drive. Then clone the installer DVD to that partition using the Restore option of Disk Utility. You can then boot the MBP from that partition using OPTION boot: Start the computer and after the chime press and hold down the OPTION key until the boot manager appears. Select the icon for the cloned DVD then click on the downward pointing arrow button.
Clone using Restore Option of Disk Utility
1. Open Disk Utility from the Utilities folder.
2. Select the destination volume from the left side list.
3. Click on the Restore tab in the DU main window.
4.Check the box labeled Erase destination.
5. Select the destination volume from the left side list and drag it to the Destination entry field.
6. Select the source volume from the left side list and drag it to the Source entry field.
7. Double-check you got it right, then click on the Restore button.
Destination means the external partition.
Source means the OS X Installer DVD.
Message was edited by: Kappy

17 inch i7 Macbook Pro Snow leopard install problems

Got my new 17 inch i7 MBP, powered it up everythings fine. So I go to re partition the drive and do a clean system install. Middle of the install it fails. Log file shows it cant read files from the DVD.
So I grab a snow leopard install version 10.6 to install from. It will not boot the mbp i7. It hangs on the apple screen with no activity circle underneath the apple logo. Same for 10.6.2 SL install disc I have.
I then try to install SL to a external drive and update it to 10.6.3. It boots all my non i7 macs here but when I try to boot the i7 mbp it hangs again on the apple screen.
I really want to use the i7 machine and Im dreading waiting on apple to send me mbp 17 replacement disks. I have no problems buying a 10,6,3 version of the SL installer but after my experiences with 10.6 and 10.6.2 and the external disk to upgrade to 10.6.3 I have a feeling the i5/i7 machines need specific installer discs.
Is any one aware of this or run in to it yet ? Thanks.

The only OS installer that will work with your MBP is the one that came with the Mac originally so you will need to wait for a new set.

Snow Leopard Installation Problems with Bridge

I just installed Snow Leopard, after having the CS4 Suite with Bridge CS4 previously installed. When I tried to open Bridge after the insallatin of Snow Leopard, I got four error messages in succession, one right after the other when hitting "ok":
1. PiPL Endian Swap Error
Please Update PALoadMacPlugins.ccp with prop.
Unable to Swap PiPLprop 'ms32" øms325 §'
2. PiPL Endian Swap Error
Please Update PALoadMacPlugins.ccp with prop.
3. PiPL Endian Swap Error
Please Update PALoadMacPlugins.ccp with prop.
Unable to Swap PiPLprop 'ms32" øms325 §'
4. PiPL Endian Swap Error
Please Update PALoadMacPlugins.ccp with prop.
After that, the program opens normally. I re-installed Bridge CS2, which works, but when I tried to use the update for Bridge CS4, it wouldn't allow me to put it in. On the installation disc for CS4, the place to select Bridge for installation was grayed out.

I didn't get any fix advice.
When I reinstalled CS4 I didn't install the any of the bonus packs/updates and haven't had the problem.
I also had (for other reasons) to do a complete reinstall of my system software, which may be why it's fixed. I'm afraid to install the bonus pack and find out, in any case.

Cs3 and snow leopard spaces problem

Hi,
Panic over about cs3, because even though Adobe is not supporting it, it seems to work ok. Touch wood. Hopefully I won't come across any annoying problems which affect my workflow. I want to wait for cs5 to upgrade.
A problem with spaces might be related to cs3 but might be a snow leopard problem.
If I drag an image over the photoshop icon, it opens that in the photoshop assigned space. If I then drag a file over the Illustrator icon, it opens it in the SAME space, not the Illustrator assigned space.
i think this is a snow leopard bug, has anyone else experienced it. It's annoying and if it is a bug hope apple fix it asap because it renders spaces useless. The whol epoint is for each app to stay in its own space not start overlapping again, causing me to have to minimise windows to see underneath.

Adobe CS 3 didn't place nice in Leopard's spaces so I think you are looking at an Adobe bug, not a new SL bug. Don't know if CS 4 does any better with Spaces or not. I'm seriously looking for alternatives to Adobe's software - they've taken on the same 'we know best - we are god' attitude Microsoft did in the mid 90s'

SNOW LEOPARD SERVER PROBLEMS REQUIRE CERTIFIED CONSULTANT TO HELP

I've had a pretty unstable Snow Leopard server install since it was upgraded from Leopard a few months ago. Some of the problems were said to be hardware related, but I've been unable to migrate it to a different computer (Mac Mini).
The current installation is running, albeit poorly.
We had a Mac consultant involved in these issues, but he has proven to be unstable and unreliable as well - so we're on a search for a new consultant to give us some paid assistance in straightening this thing out.
We're not on the US mainland, but can make the server accessible by ARD and/or SSH to someone.
Someone with Apple certification would be preferred.

Hi Brian,
I'm an IT consultant dealing with Mac OS Servers and Windows Servers as well as Linux. I can offer a few helpful suggestions since just recently I transferred data from a Mac OS 10.5.8 Server to a 10.6.2 Server.
My first question to you is what data are you immigrating from? example 10.5.8 Server Data to 10.6.2 server?
The reason why I ask this since IMAP data in 10.5.8 and before was using Cyrus and starting in 10.6 apple switched to Dovecot.
Initially, I did not realized that apple made the switch and had stalling problems using the apple migration tool. (Personally I don't think the tool works well since a lot of others are running into this problem when researching this issue).
In the end I decided it was best to important everything manually, mail and not use the apple immigration tool since I think it has some issues.
The first thing I would do is make sure the DNS is configure right so that the server can resolve it's name which is very important.
Hopefully you're been running Open Directory . Export the users from the old server and import it to the new 10.6.2 server.
Next transfer the IMAP mail from 10.5.8 server to the 10.6 server to the same locations.
Example in 10.5.8 server default location is
/var/imap
and
/var/spool/imap
note this is where cyrus stored imap data in 10.5.x and maybe before. I have to look at my old 10.4 server since I'll be upgrade my own server soon.
My clients Servers have been upgrade fine by doing the manual method.
anyway...
keep those two locations in mind of where you mail is stored.
next I would copy your old cyrus mail to the new server. Don't use the migration tool at all. Just setup the new server and get the DNS running so it can resolve itself before you do this.
also make sure mail server is not running and it's off.
open up a terminal window
copy and paste this but change the name of the volume/hard drive name (HD_name)
sudo /usr/libexec/dovecot/migratemaildata.pl --cyrusBin "/Volumes/HD_name/usr/bin/cyrus/bin" --database "/Volumes/HD_name/var/imap" --sourceSpool "/Volumes/HD_name/var/spool/imap" --targetSpool "/var/spool/imap/dovecot/mail"
ok do this will convert all of your cyrus mail to dovecot. Make sure you've already imported the users from Open Directory before doing this script.
after all of this
there's still one more step
for some reason the postfix "main.cf" file is configured to use cyrus in 10.6.2 update.
/etc/postfix/main.cf
you can use the pico editor if you like.
example
type in at terminal window
sudo pico /etc/postfix/main.cf
it should be near the end of the file
don't bother with anything that's in # which is ignored.
look for
mailbox_transport = cyrus
then change it to
mailbox_transport = dovecot
save the changes
edit settings in the mail server with server admin to what you had... I recommend don't importing the mail settings from the old server admin since some people reported that its better just to manually configure it.
however for other server admin settings you might try to export and import to the new server.
If you have any questions just let me know and I'm glad to help the mac community.

Snow Leopard Network Problems

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