Sharing files without external HD?

Is it possible to share files between two macs utilizing Airport Extreme WITHOUT having an external HD connected to the Airport Extreme? Everything I read about file sharing mentions "Connect your External HD via USB to your Airport Extreme" to share. All I really want is to keep my two macs in sync without an External HD.

Yes, you can share files between internal HDDs or externally attached HDDs to either Mac. You do NOT need to use a USB HDD, attached to an AEBSn, to do this.
Please check out the following Apple Support article: Mac 101: File Sharing

Similar Messages

Networking/Sharing files without login?

I'd like to network (share files/drives) between two Macs through our Gigabit ethernet network. Both computers have separate logins and files can be shared across the network (provided that one logs into the requested machine in order to gain access to the shared file/drive). Is there a way to automatically gain access to shared files/folders/drives without logging in to the separate machine that contains the share? I'd like to be able to log into my computer during startup and have immediate access to shared files/drives on another computer without having to log in.
I don't have a separate server nor a domain set up on our network. I appreciate any help or guidance on this. Thanks!

you can make the folders you need shared. that can be done by adding them to the shared list in system preferences sharing or by checking the shared box in their get info panels. this way other network users will have access to them without logging in as registered users but you still have to connect to a computer as a guest to mount shared folders. there is no way around that. this procedure can be automated on login. mount a share by hand and drag the share icon that you get on the desktop to login items in system preferences->accounts. next time you log in that share will be mounted automatically. this will work if you connect to a share as a registered user too but you'll need to check the box to remember the password in the keychain when you are connecting.

Sharing files without an Internet Connection - any solutions?

Has anyone found a way to share files to/from the iPad when an Internet connection is not available? We are considering iPads for International conferences and there are times when there's no Internet connection or someone who needs to share files with us can not access the Internet. Using a laptop this is easily solved with USB thumb drives.
Short of a hack, which isn't really an option, has anyone found a way to share files on the fly? Or is an Internet connection and file sharing or email the only viable solution?

Check out siteclone in the app store. It basically allows you to set up an FTP directory as a "push" location, and clone it on remote devices. Your remote users would be provided a location and user/pass, and they would be populated with whatever content you want them to have. When offline, they can see everything without the need for a connection.

Using an external drive with shared files (iPhoto, iTunes), attached to a Time Capsule, can the contents of the external drive be backed-up to the internal Time Capsule drive? Perhaps a RAID1 mirror to a partition?

Using an external drive with shared files (iPhoto, iTunes), attached to a Time Capsule, can the contents of the external drive be backed-up to the internal Time Capsule drive? Perhaps a RAID1 mirror to a partitioned Time Capsule? I understand that the Time Machine (software) cannot backup a networked drive (the external) and that Time Capsule (the router/wireless hard drive) does not have its own backup software... so it won't backup the connected drive. What I would like is an alternate solution for having an automated backup of a networked drive. A 2TB Time Capsule has more than enough space for Time Machine backups of my family of Macbooks, so I had hoped to mirror a 500GB external drive (with shared media files) to a portion of the Time Capsule internal hard drive. I assume this would require a partition of the Time Capsule drive. If not, would the sparse file from the various computers being backed up need to be copied to the external drive as part of the RAID1 setup? This seems like overkill for the Time Machine backup, but it would cover the media files.

The complexity with this idea is the software has to run from a Mac computer on your network.. so you need a Mac turned on, probably most of the day.
It isn't possible to partition the TC although you can create a image area.
The software would have to copy the material, that means all files to be copied, go from USB drive, back to the Mac, then back to the TC, and written to the drive. In other words you have just added Network congestion, although a proper incremental backup type software will not actually use a lot of capacity.
Finally it will be slow.. network drives are slower than internal drives. Well USB connected drive is much slower than the same drive connected directly to the computer.. and if the drive is connected directly to a computer it can be shared with the network.
http://www.anandtech.com/show/4577/airport-extreme-5th-gen-and-time-capsule-4th- gen-review-faster-wifi-/4
Read carefully the speed of the USB drive plugged into the TC.

How to retrieve all external refereces in a frame maker file without conditional text of hidden

How to retrieve all external refereces in a frame maker file without conditional text of hidden

Hi, Finally I found the solution of the above problem. Use following interface-function combination. ///////////code start UIDList lst = Utils<IInCopyWorkFlowUtils>()->GetInCopyStories(doc); for(int32 index = 0;index < lst.Length();index++) { UIDRef incopyStory = Utils<IInCopyWorkFlowUtils>()->GetContainingInCopyStory(lst.GetRef(index)); if(incopyStory == UIDRef::gNull) { break; } IDataLink * dLink = Utils<IInCopyBridgeUtils>()->QueryDataLink(incopyStory); if(dLink == nil) { break; } } //////code end

Sharing Files Over a Network from an External Drive

I have a Macbook Pro that is running 10.5.6, and I have, recently, acquired another Mac that is running 10.5.6, as well. I decided that I wanted to share some files from my Macbook Pro. The setup for file sharing is a breeze, but I am having some issues. I choose folders from my Macbook Pro's internal drive, and I create two users, "alpha" and "beta." I give alpha privileges to share a folder called "A" and I give beta privileges to share a folder called "B." From my other Mac, I connect to my MBP, and I enter the correct credentials for each user, and "alpha" and "beta" have access to what was assigned to them earlier, respectively, folder "A" and "B."
Everything seems to be great! However, the issue begins when my external drive comes into play. (It is formatted as Mac OS Extended Journaled.) I select a folder called "C," from my external drive, and give only privileges to user "gamma." I also select a folder called "D," also from my external drive, and only give privileges to user "delta."
Whenever I login from my other Mac, I find a problem. If I login with "Gamma," I should only be able to view folder "C," but I can also view folder "D!" Whenever I login with "Delta," I should only be able to see folder "D," but I see folder "C," as well. I have fiddled around with many settings, and I have had no success. A few members on my network will be sharing files from my Macbook Pro, and I only want certain members to see certain folders. I've tried this with two different external drives, and they both exhibit the same issue. Is this something that can be fixed?
Thanks for the help!

I'm sure that someone has dealt with this. Any input would be greatly appreciated!

Mail: use external mbox file without importing it

Hi,
I'm looking for a solution for a user with a very big Mailboxes folder in ~/Library/Mail. The computer is a 128GB MacBook Air and Mailboxes folder size is 55GB.
Of course, he has a lot of different mbox files in the Mailboxes folder (lots of Mailboxes "On my Mac" section) and always can export some of them, but it would be a perfect solution not to lose access to the entire database of mails. So, is there any way to access the mbox files if they are in an external disk, avoiding the import option?
It would be a very good solution if exist an option to load mbox files from external disks (like iPhoto or iTunes), but can't find an alternative solution by now.
Thanks for your time!

I haven't look into the help documents (you can), but I see you mixing up AS2 and AS3 code, along with treating a URLRequest (AS3) as if it is a Sound object....
CreditsMusic.setVolume(50);
CreditsMusic.start(0,1);
If you want to work with the Sound class in AS2 open the help documents and see what properties and methods are available for the Sound class and work things out from there. If you search Google using "AS2 Sound loadSound" you might get some good info as well.

Finding .m4p files on external hard drive so they can be deleted???? Help

I just copied my very large music library from one external hard drive to a second external hard drive. I am giving the hard drive to my daughter at college, but before I do, I want to remove all the .m4p protected songs from the second drive so the protected music doesn't fall into other peoples hands.
When I search the drive, it finds no .m4p files. I think it is because the search function is not looking into the sub folders. In other words, I click on the hard drive, it expands to show all the artist names. I then do a search for *.m4p and it comes up with nothing. Clearly I do not want to go through each album name under each artist because there are about 4000 artists and 50,000 songs.
How can have have the search function look into every file and identify all the *.m4p files so I can delete them before sharing?
Thanks

Matt Krumwiede wrote:
Thanks for the suggestion, but I am not sure I understand....
Is there not a way to do a search of a disc to find all .m4p files in folders and the sub folders?
You can use the terminal:
Macintosh-HD -> Applications -> Utilities -> Terminal
mac $ ls /Volumes/Spotless/spotless.*
/Volumes/Spotless/spotless.png
mac $ ls /Volumes/Spotless/spotless*
/Volumes/Spotless/spotless-test.m4p /Volumes/Spotless/spotless.png
mac $ find /Volumes/Spotless/ -iname '*.m4p'
/Volumes/Spotless//spotless-test.m4p
Run the list command to see what files will be found.
mac $ find /Volumes/Spotless -name '*.m4p' -exec ls {} \;
/Volumes/Spotless/spotless-test.m4p
Be careful with this command. The rm commands will delete a file.
mac $ find /Volumes/Spotless -name '*.m4p' -exec rm -i {} \;
remove /Volumes/Spotless/spotless-test.m4p? y
mac $
It seems strange that I would need a 3rd party ap to do so.
the Spotless facility was introduced with tiger. Spotless does not do well when searching by filename.
I have found that spotlight is inconsistent when searching by filename. To search by filename, try:
FindAnyFile
"This is a free program for Mac OS 10.4 and later that lets you search for files on your disks, primarily on HFS formatted ones."
http://apps.tempel.org/FindAnyFile/
EasyFind
An alternative to or supplement of Spotlight and finds files, folders or contents in any file without the need for indexing.
http://www.apple.com/downloads/macosx/systemdiskutilities/easyfind.html
Sometimes I have to resort to Unix.
Macintosh-HD -> Applications -> Utilities -> Terminal
I prefer to use iname instead of name because iname is case independent whereas name is case depended.
#this command finds anything starting with python
find / -iname 'python*'
You can also run commands against the found file. Be careful. Always list the file before doing something.
# this is the safe list command. No changes are made.
find /home/robert -user robert -exec ls {} \;
{} is the filename
\; is the required characters for lineend
Message was edited by: rccharles

Quicktime&Rainbow w/Shared Files Since 10.5.2 and QT

Sharing files over a wireless network, problems remotely accessing files and having QT hang....
Anyone else out there having problems recently with *Quicktime giving a lot of rainbow wheel action* when either opening files or after streaming them for a bit? I have to force quit each time....
...this only happens *when sharing files*, not when accessing them with a hard wired connection.
I have tried MANY solutions, everything from disabling Remote Buddy, Little Snitch, turning off Time Machine, removing and replacing codecs and installing/uninstalling Perian....to no end.
This since about the time of QT 7.4.1 upgrades and 10.5.2 upgrade.
QT 7.4.1 installed in an instant, without what even seemed the time nec to dl the file!
10.5.2 hung up on "Writing Package Receipt" and I had to hard boot after waiting 1,5 hr....
....reinstalled 7.4.1; repaired permissions everywhere....still struggling....
Anyone? Relevant log files to check? Relevant elements to hunt for within log files?
Many thanks to the kind souls that might help!

Repairing the Hard Drive and Permissions
Open Disk Utility in your Utilities folder. 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 shutdown the computer for a couple of minutes and then restart normally.
If DU reports errors it cannot fix, then you will need Disk Warrior (4.0 for Tiger, and 4.1 for Leopard) and/or TechTool Pro (4.6.1 for Leopard) 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.

Sharing files between Mac to Windows

Hi,
I have an ibook G3 with Mac OSX, originally 10.1.5 but recently I upgraded it to Tiger 10.4. The hard drive is about to die (clicking in left corner, applications running slow even though I have enough memory). I'm sorry to say but I bought a Microsoft PC. I've just had so much trouble with my Mac.
I would like to transfer my files from grad school from my Mac to my Windows PC using an ethernet cable if that is possible. I really don't know much about computers. How does one do this, set up a direct connection between the two computers which are not on any kind of network.
I really don't want to lose my files and I have already tried some other options. The CD burner on the Mac never worked so I was unable to burn copies of my files directly. I tried using an external CD burner but not all of the files burned, not sure why. I tried transferring the files to a zip disk but when I connected the zip drive to the Windows PC the computer told me it couldn't read the files and would have to reformat the disk erasing all of the information. If anyone has any ideas I would greatly appreciate them.
Thank you,
Melissa

Hi Melissa!
You have the right idea about using an Ethernet cable. It's the simplest way to transfer files without resorting to sneakernet.
Do you know whether or not either of your computers has a Gigabit Ethernet port? If so, any Ethernet cable (straight-through or cross-over) will work. Otherwise, get a cross-over Ethernet cable from your local computer store.
You can plug the cable directly between the two computers and they will automatically assign themselves IP addresses in the same range 169.254.xxx.xxx.
If your Windows PC is running Windows XP, then it has file sharing enabled by default. If you'd like, create a folder on your Windows destkop, right-click and select Sharing.
From your Mac, you should be able to go to the Go menu in the Finder and select Connect To Server... Browse to find and connect to your Windows machine. You can drag and drop files to copy them.
Hope this helps! bill
1 GHz Powerbook G4 Mac OS X (10.4.4)

How to replace or remove last 500 bytes of a file without rewriting all the file?

Hi everyone,
Usually I only ask for help when I can't find a solution for several days or weeks... And guess what? That just happen!
So, this is what i am trying to do:
I have a program to ZIP folder and protect them with password, then it encrypts the zip file.
That it's working fine, until the user forgets his password.
So, what I want to do is give the user a Recovery Password option for each ZIP file created. I can't use the Windows Registry because the idea is to be able to recover the password in any computer.So i came up with an idea...
In simple terms, this will work like this:
0 - Choose folder to ZIP
1 - Ask user for recover details (date of birth, email etc)
2 - ZIP folder with password
3 - Encrypt ZIP file
4 - Encrypt recover details and convert it to HEX
5 - Add recover details (in HEX) to the end of the ZIP file (last bytes)
6 - Add "5265636F76657244657461696C73" which is the text "RecoverDetails" in HEX
7 - Add "504B0506000000000000000000000000000000000000" this is the final bytes of a ZIP file and will make the Operating System think that is a ZIP file (i know that will give an error when we try to open it.. the ideia is to change the
extension later and use my software to do all the work to access this ZIP/folder again)
So, explaining what it's here, I want to say that I managed how to do all of this so far. The point number 6 will help us to determine where the recover details are in the file, or if they actually exist because user can choose not to use them.
In order to unlock this ZIP and extract it's contents, I need to reverse what I've done. That means, that need to read only the last 500 bytes (or less if the file is smaller) of the ZIP and remove those extra bytes I added so the program can check
if the user is inputing a correct password, and if so decrypt contents and extract them.
But, if the user insert a wrong password I need to re-add those bytes with the recover details again to the ZIP file.
The second thing is, if the user forgets his password and asks to recover it, a form will be shown asking to insert the recover detail (date of birth, email etc), so we need to reed the last 500 bytes of the ZIP, find the bytes in number 6 and remove the
bytes before number 6, remove bytes in number 6 and number 7, and we will have the recover details to match against the user details input.
I have all done so far with the locking process. But i need help with the unlocking.
I am not sure if it's possible, but this what i am looking for:
Read last 500 bytes of a file, remove the bytes with recover details and save the file. Without reading the whole file, because if we have a 1GB file that will take a very long time. Also, i don't want to "waste" hard drive space creating a new
clone file with 1GB and then delete the original.
And then add them back "in case user fails the password" which should be exactly the same.
This sounds a bit confusing I know, even to me, I am writing and trying to explain this the better I can.. Also my English is not the best..
Here it goes some code to better understanding:
'READ LAST 500 BYTES OF ZIP FILE TO CHECK IF IT CONTAINS RECOVER DETAILS
Dim oFileStream As New FileStream(TextBox_ZIP_to_Protect.Text & ".zip", FileMode.Open, FileAccess.Read)
Dim oBinaryReader As New BinaryReader(oFileStream)
Dim lBytes As Long = oFileStream.Length
oBinaryReader.BaseStream.Position = lBytes - 500
Dim fileData As Byte() = oBinaryReader.ReadBytes(500)
oBinaryReader.Close()
oFileStream.Close()
Dim txtTemp As New System.Text.StringBuilder()
For Each myByte As Byte In fileData
txtTemp.Append(myByte.ToString("X2"))
Next
Dim RecoveryDetailsPass_Holder = txtTemp.ToString()
'Dim Temp_2 = txtTemp.ToString()
'RichTextBox1.Text = txtTemp.ToString()
If txtTemp.ToString.Contains("505245434F47414653") Then
'we have password recovery details(the numbers mean RecoverDetails in HEX)
'next we will get rid of everything before and after of string "cut_at"
Dim mystr As String = RecoveryDetailsPass_Holder 'RichTextBox1.Text
Dim cut_at As String = "505245434F47414653"
Dim x As Integer = InStr(mystr, cut_at)
' Dim string_before As String = mystr.Substring(0, x - 1)
Dim string_after As String = mystr.Substring(x + cut_at.Length - 1)
RecoveryDetailsPass_Holder = RecoveryDetailsPass_Holder.Replace(string_after.ToString, "")
RecoveryDetailsPass_Holder = RecoveryDetailsPass_Holder.Replace("505245434F47414653", "") ' this is RecoverDetails in HEX
RecoveryDetailsPass_Holder = RecoveryDetailsPass_Holder.Replace("504B0506000000000000000000000000000000000000", "") ' this is the bytes of an empty zip file
'AT THIS POINT WE HAVE ONLY THE RECOVER PASSWORD DETAILS (date of birth, email etc) IN THE VARIABLE "RecoveryDetailsPass_Holder"
'////////////////////////////////////////////////////// TO DEBUG
'MsgBox(string_after.ToString & "505245434F47414653")
'InputBox("", "", string_after.ToString)
'\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ TO DEBUG
'Temp_2 = Temp_2.Replace(RecoveryDetailsPass_Holder.ToString, "")
Now that we have the recover details, we need to remove them from ZIP in order to the software try to unzip it with the password provided by the user on the GUI.
If the user needs to recover the password we have the details already in RecoveryDetailsPass_Holder variable and just need to match them against user input details.
If the user fails, we need to put the RecoveryDetailsPass_Holder back on the file.
Any question just ask, it's a bit trick to explain i think, but please ask.
Anyone know how to do this?
Many thanks in advanced.
Nothing is impossible!
@ Portugal
Vote if it's helpfull :)

@ ALL
Thank you very much for you help. I know that if I'm "playing" with bytes you should assume that I know a lot of VB.net, but I don't know that much unfortunately. I am not a beginner but I am still very fresh and I probably do stuff that work but
probably not in the best way...
Anyway, I will explain the idea of this little software I'm making. Once I wanted to create a program to protect folders with password, and I came up with something to change folder permissions to lock access to them, and that actually worked fine and quickly.
However, I managed how to "crack" the protection by going to folder properties, security tab and then give permissions back to my username. So that, to me, wasn't a safer system to protect folders, also I want the ability to use passwords. So I search
and search online for a way to do it, and someone replied (to someone with the same question as me) that the best option would be to create a zip with all contents of the folder, with password and then change the extension from .zip to .whatever and register
the new extension .whatever on the Windows Registry, so that file will have an icon and open with my software.
So I did...The program zips everything, change the extension and I added the encryption to avoid people changing the extension to ZIP or trying to open with 7-Zip or similar and be able to see the protected files names in the .zip/.whatever
Answering to all of you now:
@Armi
"System.IO.FileStream.SetLength"
I know I tried that but I erased the code because it didn't work for some reason, I don't remember why sorry, was long time before I created this post.
The last code I was trying to use was this:
' Set the stream position to the desired location of the stream.
Dim fileStream As IO.FileStream = _
New IO.FileStream(TextBox_ZIP_to_Protect.Text & ".zip", IO.FileMode.Append)
Try
' Set the stream (OFFSET) position to the desired location of the stream.
fileStream.Seek(210, IO.SeekOrigin.Current)
Dim Bytes_do_ZE As Byte() = HexStringToByteArray(Temp_2.ToString)
'Write Characters ASCII
For Each Byte_Do_Zeca As Byte In Bytes_do_ZE
fileStream.WriteByte(Byte_Do_Zeca)
Next
Finally
fileStream.Close()
End Try
and we need this:
Private Shared Function HexStringToByteArray(ByRef strInput As String) As Byte()
Dim length As Integer
Dim bOutput As Byte()
Dim c(1) As Integer
length = strInput.Length / 2
ReDim bOutput(length - 1)
For i As Integer = 0 To (length - 1)
For j As Integer = 0 To 1
c(j) = Asc(strInput.Chars(i * 2 + j))
If ((c(j) >= Asc("0")) And (c(j) <= Asc("9"))) Then
c(j) = c(j) - Asc("0")
ElseIf ((c(j) >= Asc("A")) And (c(j) <= Asc("F"))) Then
c(j) = c(j) - Asc("A") + &HA
ElseIf ((c(j) >= Asc("a")) And (c(j) <= Asc("f"))) Then
c(j) = c(j) - Asc("a") + &HA
End If
Next j
bOutput(i) = (c(0) * &H10 + c(1))
Next i
Return (bOutput)
End Function
That code, as I understand, is to search for the OFFSET of the bytes in the file and start to write from there... That OFFSET should be the beginning of the 500 bytes read on the code before. I got the OFFSET position "210" reading the file with
the HEX editor "HxD - Hexeditor v1.7.7.0" but using the OFFSET won't work because every file, password, recover details and so on, are different and so the file size, changing the OFFSET I
think.
@Reed Kimble
Does that sound like something which might work for you?
Thanks for your help. That might be some solution, however it seams a bit of the same problem where we need to read the bytes again to get the recover details. But, as I said in this post, because this is meant to password protect folders, do you think that
will apply as well?
@Crazypennie
Thanks for your reply.
All this appears really weak. The user has your application since he need it to open the file .... and the code in the application contain the code to read the file without knowing the password. Therefore anyone can read your code and retrieve the
data without the password ... if he knows VB.
The application can only open the file if the user didn't use a password to protect the file. Because the file is encrypted and needs to be unencrypted first.
When the application tries to open/read the file, will need to decrypt it first and then check for a password and do the validation. Also the application is with the code masked/protected which i think it might not be easy for reverse engineering.
- You need to use a web server and a symmetric key encryption
This a good idea, besides I don't know how to implement it. However the idea is to be able to:
1 - Protect a folder anywhere in any Windows computer (portable app)
2 - Recover password details (security question) in any computer, online and offline
And I think we need a computer always connected to the Internet to use that method, right?
@ Mr. Monkeyboy
Thank you very much for your effort.
I just wanted to let you know that the zip method you are using is no longer supported.
I didn't actually knew that. Thanks for letting me know.
Do you require the compressed encrypted files to actually be Zip files or could they just be compressed files that have nothing to do with Zip?
No, it doesn't need to be a .zip extension. I am actually using my own extension. It starts as a Zip but then I changed to my own extension which I have registered on the Windows Registry.
@ ALL
Thanks again to all for trying and spending time helping me.
By the way, I might not be able to answer or try any code during the weekend... It's easter break and family is around. Have a nice easter everyone. :)
Nothing is impossible! Imagination is the limit!

My Mac Can't See Files on External Hard Drive

Hi,
I'm having some trouble with my iMac today. It can't see any files on my NTFS External Hard Drive after a sharing change, I'm using Paragon NTFS for Mac OSX v8.0.0.
Yesterday evening I tried to share the drive over my network by clicking System Preferences / Sharing / File Sharing and then adding the drive as a shared folder. It is since doing this that I cannot see my files on this external HD. I have a second NTFS HD here which I connected and I can see the files on that drive so I don't think it's a software issue.
I have tried a few things to try and fix it but to no avail.
1. I have tried removing it from the shared folder list but that hasn't solved the problem. I tried adding it a second time just in case but that didn't do anything either.
2. I have repaired the disk permissions via disk utility
3. I have tried "defaults write com.apple.finder AppleShowAllFiles TRUE
killall Finder" to show hidden files but they still don't appear. I have reversed this so hidden files are no longer visible.
If I connect the drive to my Windows 7 laptop I can see and access all of the files.
I hope someone can help out with this issue. If you need any other information just let me know.
Kind regards,
Kim
System Details
iMac 24" Early 2008 Model
Core 2 Duo - 3.06Ghz
4GB RAM
OSX 10.7.2
iomega 1TB External Hard Drive
Formatted NTFS
Paragon NTFS for Mac OSX v8.0.0

I had the same problem but only after I upgraded to Lion. I could see the files on my external drive on other Macs using older software. It seems that Lion wasn't seeing old files on the external drive. So we accessed the files on a Mac using Snow Leopard, copied all the files into one new folder on the same external hard drive and now they're there on Lion. Problem solved! I hope this helps

Unable to access shared files over network after period of time.

First off, I don't think that this issue is related to our router, but I have been searching for a fix and can not find one. We have a WRT54GS. Now, on to our issue:
At my work, we have a small network with computers sharing files between the others. I have attached a network diagram to help explain this better.
Our Win7 machine is our main computer that shares an external hard drive with much information that the other computers need to access. What we have noticed is either after a sleep, or even a period of time of say, 2 hours, those files are no longer able to be accessed. The Win7 machine is still sharing them, but the WinXP machines are unable to access them anymore and my Mac can see the computer is unable to connect to the folders. I have gone and attempted to get some help over at Microsofts site but that was a fail. Here is the link to the forum post there. http://social.answers.microsoft.com/Forums/en-US/w7network/thread/f0a2e8d6-f75a-41d7-a280-c6f3adbffa...
A member there gave me this:
The Network connection is probably not resuming after sleep.
First try this, http://www.ezlan.net/Win7/power_save_win7.jpg
It is in the Network Connection Properties under the Network card configuration.
If it already checked this way, or does not work after checking, the Network card has to be taken out of the computer's Power Saving loop, and stay on all the time.
Otherwise, Updating the Card with the latest OEM drivers (downloaded from the computer's support site) might help too.
On a rare occasions, some cards might be "Quirky" in this regards and need to be replaced.
--I would like to add that this DOESN'T ONLY happen after sleep, it also happens after a time of being used.
I attempted those and no luck. This problem is still occurring and the only way we can fix it is by restarting the Win7 machine. But even if it is being used, we have no idea when those files are unable to be accessed.
*I will add that the Win7 machine is still able to access the other computers when this problem occurs if that helps.
**The Win7 machine is a Dell T3500 running Windows 7 64bit. I can provide specific hardware if needed. The drivers are all up to date as of yesterday.
***So upon looking in the Windows XP machine, both of the folders from the Win7 machine disappear once this problem occurs in the My Network Places folder. And one folder is on the internal drive, one is on external. The computers are in this situation now where I am unable to access them. The Win7 machine can read and write from the other computers, but the other computers can even see the Win7 Machine.
****All the connections are wired and are not using the wireless.
Thanks for any help that anyone may have for me!
Steve
Network Map > http://scubasblog.com/network.jpg
Dell Support Forum with same issue I posted >> http://en.community.dell.com/support-forums/network-internet-wireless/f/3324/p/19337620/19716797.asp...

It sounds like there is incompatibility issue with XP and Win7. To isolate this, do you have another Win7 machine? Try to add it to the network and check if the shared drives are accessible after sleep. If you don't have another computer, try virtual machine and create a Win7 system.
Update your LAN card driver from the manufacturer's site. Don't use the driver from windows update.
Lastly, does this happen to your XP machines? Like, one of the XP machine sharing a folder and falls asleep. When it wakes up, does Win7 machine can still access the shared folder?

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