Network Shared Computers in Leo: why isn't it easy like Tiger?

In Tiger, I used to be able to just click on the Network icon in Finder and within seconds ALL the Windows computers on my network would appear as shared, and all I had to do was click on a computer icon and all its shares were visible. This was a simple and reliable behavior.
But since upgrading to Leopard, finding shares on my network could be a new game in a Las Vegas casino: in Finder's "Shared" section, they sometimes appear on their own, and sometimes not. Sometimes one computer appears, but another not. ANY of them can be summoned and respective shares opened using Finder's "Connect to server..." command, so all of them are there, active and part of the same workgroup. Why can't this be more simple and reliable like it was in Tiger?
Another annoyance is that once a server has been connected to via "Connect to server..." if I navigate away from it in Finder, and then return to it, it will need to go through a "connect" procedure again. This is not the case with a shared computer that is discovered automatically. Another reason to try to get the system to auto-find all the shared computers on the network.
Is there something I'm missing? I can't find a clear explanation for this in the discussions or in the help documentation. In fact I find it surprising that many seem to be ok with this; it was a lot more efficient the old way.
If someone can give me a clear, simple explanation of why this is the way it is, and how to get this to work reliably like it used to, I'd REALLY appreciate it!
TIA

See:
* http://kb.mozillazine.org/Error_loading_websites

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TrnID=0x28DB
OpCode=0
NmFlags=0x11
Rcode=0
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AnswerCount=0
AuthorityCount=0
AddressRecCount=0
QuestionRecords:
Name=_MSBROWSE_ NameType=0x01 (Unknown)
QuestionType=0x20
QuestionClass=0x1
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0x0020: 4659 202a 2048 5454 502f 312e 310d 0a48 FY.*.HTTP/1.1..H
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0x0040: 3235 303a 3139 3030 0d0a 4361 6368 652d 250:1900..Cache-
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0x0110: 6374 696f 6e44 6576 6963 652d 315f 302d ctionDevice-1_0-
0x0120: 3030 3137 3366 3638 6364 3861 3a3a 7572 00173f68cd8a::ur
0x0130: 6e3a 7363 6865 6d61 732d 7570 6e70 2d6f n:schemas-upnp-o
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0x0160: 0a .
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Why would you not see them?
1) Your firewall is blocking them from going out from the system that is sharing data
2) Your firewall is blocking them from coming in from the system that is looking for the data
3) The necessary services are not started on either system
4) Your network does not properly forward multicast and broadcasts between hosts
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Different options for shared computers (screen sharing)

http://photocat.smugmug.com/photos/221486873-XL.png
http://photocat.smugmug.com/photos/221486937-L.png
Why do I get two different login options on my network? For one computer I can check on screen sharing, but I don't get that option for the third computer.
Am I missing a point here?
What am I doing wrong? Any help would be appreciated
I have leo on my laptop and can screen share with the swivel on tiger, but not with the iMac G5 on tiger...

Hi Catherine.
The question is. Are both computers running Leopard? Screen sharing only works between Leopard computers. It doesn't work between Leopard and Tiger unless you install a third party VNC program like Chicken of the VNC or similar.
I have three computers at home. Two with Leopard and one with Tiger. I can share my screen between the Leopard ones but not with the Tiger one.
Does this answer your question?
Juan-o-Matic

Network shared variables lose binding

Hello,
I am developing an application in LabVIEW that uses network shared variables to transmit data between two PC's on the same subnet. The shared variables work fine when running the VI's in development mode, however, when i build the vi's into an executable I find that they no longer work. Here is what I have found so far:
I deploy the shared variable library on the publisher machine (also happens to be the development machine) through an invoke node in the executable. NI distributed system manager confirms that this does deploy and indeed updates as it should.
For the executable on the subscriber PC I created a second shared variable library (same project) with the same shared variables and bound them to the respective shared variables from the first library by selecting enable aliasing, then bind to PSP URL and browsing to the shared variable I wish to bind it to (e.g. \\hallnet-ellm2\shared variable library\serial Number). The machines listed under browse were listed by name so when I tried this initially and it did not work I manually changed the name of my machine in the URL box to the IP address of the publisher hoping that would fix it in case the subscriber could not resolve the publishers machine alias. So now my bind URL read \\192.168.0.1\shared variable library\serial Number.
As part of the executable on the subscriber I deploy this second shared variable library. NI distributed system manager confirms that this deploys but under quality for an individual variable it has a list of issues (see attached) and the bound variable is not updating. At this point the publisher shared variables are still functioning fine. By clicking on 'edit variable' I can see that the variable on the subscriber is still bound but the PSP URL is now \\localhost\shared variable library\serial number. Changing the PSP URL on the subscriber to \\192.168.0.1\shared variable library\serial number enables the variable to update as expected.However by this time my executable has already picked up the error and does not function.
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[My Computer]
My Computer=localhost
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Attachments:
distributed system manager.JPG ‏74 KB

Hi Lee,
I hope you are well. Thank you for your post. Your application sounds very interesting.
Looking at your issue I was wondering, have you tried lowering your firewalls, as this may be causing the problem.
Also, another option would be to setup a private network. Do you have access to any routers that you could use to link the two machines independent of your IT's infrastructure?
The other thing to try is two other computers entirely. Again, it would be ideal to take them off the network you are on, but it's something to try if my prior suggestion doesn't work. It should work on the original two machines though, and it's likely that different computers won't solve your problems because I suspect the network.
Remember that the client variables must know the location of the variables on the server, so you can't move the server exe around without changing this value.
Make sure to set the network location in the "Bind to Source" option for the client variables.
It is also possible to write a separate piece of code to install on every machine that is responsible for deploying the library and by doing so eliminate the need for programmatically deploying the variables in the original application. However, this won't really help you, because the variables you use in the application have to be the same as the ones deployed in the library, so if you change the library, they'll no longer be linked and they won't receive data. You'd have to create a separate exe for every binding source you wanted to link to, and then have a second, known library for the sake of communication locally on the computer between the ‘deployer’ and the actual application. The main application could then be assigned the responsibility of launching the correct ‘deployer’' if it sees it needs to switch to a different variable binding source. This method is not the most streamlined or effective, but it might work.
Just to let you know, you will need to use the DSC toolkit.
Please find below some knowledge base links that I think you will find helpful in your application.
Using Shared Variables in Executables
How do I Programmatically Change the Data Binding Source for Shared Variables?
I hope this information helps and if you can give these suggestions a go and let me know how you get on, that would be great.
Kind regards,
Prashant M
Applications Engineer
NI UK & Ireland

Distributed application: Networked Shared Variables, Named Services (Raw TCP/IP) or Other?

Happy New Year NI forums!
I am working on a project involving mobile interacting robots. In the future it is likely the application's components may need to run on different PCs (Targets). Note: at this point in time all the components are seperate but all running on the localhost machine. Thinking towards the future I want to pick the 'best' architecture to allow all these components (VIs performing various functions) in multiple locations. For example, several VIs on the Robots, VIs on serveral PCs.
I am currently aware of using Server/Client TCP/IP using named services. My mock up works well, but is it time efficient (my time coding) I wonder.. ?
Whereas I am aware of networked shared variables which handle connections and all the parsing for the underlying tcp/ip communication. But will this be difficult the manage? I am unsure if I can associate shared variables with a VI similar to named services. I suppose I could pro grammatically create the variable upon initialization of the server component - and the client could just search the list of avaiaible variables to connect too. Downside this would require DSC module.
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Kind Regards,
James
Kind Regards
James Hillman
Applications Engineer 2008 to 2009 National Instruments UK & Ireland
Loughborough University UK - 2006 to 2011
Remember Kudos those who help!

Hi Jason,
Thanks for your reply. I hope your enjoying NI UK as much as I did.. fun times!
I have seen the link you posted a few times before. But today, I took a better look at it.
My issue is I need several multi-client severs, i.e. many servers which allow multiple clients to connect to them.
Now the STM does have an example of this - STM mutli-client Example - Server.vi (used with the STM mutli-client.vi)
However, when a make copies of these code (to have my second server) - it refuses to run. As in , it just stops itself.
I DID change the port number, on the lister aspect of the server code. But I Am unsure what else I would need to change to get this setup to work?
One thought I had was, the FIFOs all having the same name - this probably isn't a good idea between servers.
Any suggestions would be grateful!
*please could you provide me email support
Kind Regards,
James Hillman
Kind Regards
James Hillman
Applications Engineer 2008 to 2009 National Instruments UK & Ireland
Loughborough University UK - 2006 to 2011
Remember Kudos those who help!

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I got tired of power cycling the Linksys so I got the D-Link and everything is good, except that I can't see my shared computers anymore, or remote login with Remote Desktop Connection.
My computer is a MacBook Pro, the other two are Windows XP desktops, and all are wireless. Edit: Also neither of the XPs can see each other, and they also could before.
I know it has something to do with the firewall on the new router, because it worked fine on the other. I think it has something to do with netbios and/or bonjour, but I don't know enough about them to figure out what to change.
Thanks
Message was edited by: jimdaug

GAH, I'm such a Noob. I finally remembered that Kaspersky Internet Security had to have the network set to trusted under its firewall settings. It's working fine now.
Message was edited by: jimdaug

IPhoto '08 album organization while network sharing

I use iPhoto to store and organize (hopefully) a University's photo archive (which is shared on a network). Would anyone happen to know why my albums do not stay organized (in alphabetical order) when I access a shared iPhoto library remotely?
Also, when I create a new folder and place albums inside of it (for further organization purposes because there are many, many albums) then try to access that folder remotely from another mac, that folder is not 'recognized' as a true folder with albums in it, instead it is treated as one big album.
Another issue is that when i try to export my iPhoto library (under file>export) it won't keep the organization structure (the separate albums). Instead, it places the entire collection of photos into one location, thus losing all those albums and hours of organization.
I'm a bit shocked that Apple hasn't found these issues and fixed them 7 releases later.
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Welcome to the Apple Discussions.
I use iPhoto to store and organize (hopefully) a University's photo archive (which is shared on a network).
This is way, way beyond the intended use of iPhoto which is personal photo organiser.
Also, when I create a new folder and place albums inside of it (for further organization purposes because there are many, many albums) then try to access that folder remotely from another mac, that folder is not 'recognized' as a true folder with albums in it, instead it is treated as one big album.
Only Albums are shared. Not events. not folders. Only Albums.
Another issue is that when i try to export my iPhoto library (under file>export) it won't keep the organization structure (the separate albums). Instead, it places the entire collection of photos into one location, thus losing all those albums and hours of organization.
If you export your Library you get the photos from your Library. If you want to export albums, then export the albums. The same happens with iTunes. Export from the Library you get the lot. Want the organisation, export playlist by playlist.
Is there any way to share this archive with PCs using iPhoto?
No. iPhoto has no cross platform capability.
There are other cross platform apps. Microsoft's Expression (http://www.microsoft.com/expression/products/overview.aspx?key=web) is one but there are others. Search on MacUpdate
Bearing in mind the use you have I really don't think that iPhoto is the correct application for your needs. You need a more robust and scalable application - perhaps even a media server.
Regards
TD

Network Shared Computers in Leo: why isn't it easy like Tiger?

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