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Can't map to/ping machine on the network

By mdjunk ·
We're a small office running several Windows servers with XP on the client. We run virus software on our network by mapping to the c$, d$ and so on drives on the clients, then run the software on a dedicated server.

There are some machines that I can't map to or even ping. I'm a domain admin.

It seems to be caused by having the Windows Firewall turned on. But turning that off scares me a bit as well. Is there a way to map to a drive (admin share or otherwise) and still have the Windows Firewall turned on?

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by NormH3 In reply to Can't map to/ping machine ...

Make sure that file/print sharing is enabled on the clients that are having issues. I am not sure that I would worry too much about disabling the Windows firewall on the clients. The firewall you need to be concerned with is the one that protects your domain from the outside world.

-Norm

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by mdjunk In reply to

Poster rated this answer. I believe I get that for free with the install of Windows. File and print sharing is enabled but this still is a problem.

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by ippirate In reply to Can't map to/ping machine ...

On the windows firewall, determine the ports that you need to be able to access the PC on. Create an exception policy, specifying the IP of the server you are attempting to utilize/ping from and the ports being accessed.

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by HAL 9000 Moderator In reply to Can't map to/ping machine ...

What version of Windows are you using on the Server/s. If it is XP Pro then there is a upper limit of 10 Concurrent available the same as 2000 Pro. If it is XP Home then you have a upper limit of 5 concurrent connections although I'm not sure how you would manage to configure this as a server.

If you are using one of the Windows Server Products they could have a default setting of 5 connections or maybe even be exceeding their allowable upper limit without additional Licenses.

You'll need to have a look and alter the number of computers connected to the Server and maybe purchase the additional Licenses to add the rest to the Domain. The way to do this depends on the version of Windows you are using.

With XP you shouldn't worry about the firewall as it really is unimportant in a domain the server if setup properly should be hosting these applications.

Col

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by mdjunk In reply to

Poster rated this answer. I can't map to the client machines from any computer; server version doesn't seem relevant. I can't ping or map from my desktop, some of the other desktops. So I think the answer is apparently what I thought: turn off the Windows Firewall on the workstations manually. I just don't get why that would be turned on by default when it obviously gets in the way of networking.

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by HAL 9000 Moderator In reply to Can't map to/ping machine ...

Easy answer to why the Firewall is turned on is that MS expects most of their OS's to be usable by home users and the Professionals should know the work around.

The make their systems for the lowest common demonstrator.

Col

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by HAL 9000 Moderator In reply to

Just another thought are you getting solid LED Lights on th e Hun/Switch for all the connected computers?

If you are that will save you the need to use a cable tester to check cables.

But if you brought Brand Name Boxes like Dell, HP, Gateway and so on they may not have the Networking side of Windows installed. Open the control pannel the left click on the Add Remove Programs and when that window becomes active on the left hand side there is a box called "Add Remove Windows Components" left click on this and scroll down and tick any un-ticked Network Connection boxes. You'll need one of the Computers CD's inserted in the CD/DVD Drive to install these services and you'll have to do it on each machine that isn't currently connecting.

If none of that works you'll have to have a look at the Hub/Switch and you can change the wires from a working computer to one of the nonworking ones to see if that alters anything, if it does you have a Hub/Switch problem.

Once you can ping the individual computers on the domain then try to ping the server from one of the machines that wasn't previously being seen by the Server or log onto the server and see what machines are visible in the Domain. but first you'll have to have something on each computer shared so you'll need to share the drives that you want to have access to.

To do this right click on the drive scroll down the drop down menu and chose Sharing ignore the blue writing that comes up about possible security issues and just click on the blue writing that says "If you understand the risk but still want to share the Root of the Drive Click Here" and then just tick the box that allows sharing on the next screen as you want to map these drives you might need to add the second tick which allows an outside source {In this case the Server} to be able to alter the contents of the Drive for Network or Domain AV Scans and so forth.

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by HAL 9000 Moderator In reply to

That is something that I don't think anyone else has addressed the need to actually share the Drives.

But once this is all working the Server limits still apply and as you have not specified just how many machines are being connected to the Server on this domain and what the server is actually running if it is a Windows product you could still have some problems. If you are using a Nix, BSD, or anything at all like that you shouldn't have a problem.

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by HAL 9000 Moderator In reply to

Just another thought do you have multiple Hubs/Switches in this Domain?

If you do is are all the invisible computers on one of these?

It could be a faulty Hub/Switch or even somehow a router has been placed in there and running on its default is isolating everything in that area to themselves so that nothing outside the router can access that area of the domain.

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by Sue T In reply to Can't map to/ping machine ...

Just a thought, Are you using a WINS server? I have found that I have to add that on the client computer in the TCP properties in order to be able to connect to some computers. Are these computers setup as users on the server who have rights to the share? Can you ping the server from the client? Are these computers able to get on the internet?

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