Can't see XP Machine in Windows 7

Another idea, from mikefapp, "go to the Networking Properties of the connection from Control Panel\All Control Panel Items\Network and Sharing Center and turn off AGN Filter Interface (64-bit)" seems to be beyond my capabilities, since there is no such option on my machine; at least none that I can find, and certainly not at that location. The relatively useless Help does not even find any entries for "AGN".

@SunHiker,
If you can see your XP machien from Windows 7 and no access it,
check your share settings to make sure you still sharing something..

hope that helps.

I think the rest of the problem must on the XP machine, which claims the W7 machine doesn't exist. Also, the XP machine cannot seem to hang onto its workgroup name; I set it to WORKGROUP, and next time I look, it has reverted to MSHOME. Anyway, I have spent far too much of my valuable time on this idiotic problem; I'm calling the Geek Squad.

I noticed last night, when trying to tweak my services on my xp machine..
I turned off ipsec, and that killed it .. no longer could see xp on either machine..
check that service make sure it's on..

IPSEC services show as Started, Automatic. I haven't messed with any services.

--C

I have two Win 7 64bit machines, one with Win 7 Pro and one with Win 7 Home Premium. The Home Premium machine can see the XP machine with no problem, accesses all the files. The Pro machine can't seem to see the XP machine in the "Network" area of Windows Explorer but can ping it and will see it if I map it as a network drive. I have gone through every setting I can think of and every suggestion on this thread except deleting and reinstalling the Windows Firewall. Both Win7 machines appear to be set up identically (but have different hardware, one is an HTPC and the other is my desk workstation). I just installed SP1 but still no joy. I did a clean install of Win 7 on the desk workstation about a week ago to clean out all the crud that had accumulated over the past 18 months or so. Before that, I was able to access the XP machine with no problem. So much for improving things.

xp pc is host to internet connection sharing

I am a newbie, not technical, know just enough to be dangerous.

Small work group. we had 3 xp pro sp3 pcs (towers, no wireless) connected via wired LAN. We use Internet Connection Sharing. The host PC has a 3g usb modem and software from cellular provider to access Internet (we live in a rural community, cable is not available, and forget FIOS). one of the 3 xp pcs died, and was replaced with a windows7 laptop.

the windows7 laptop can ping the ip address of the ICS host XP PC, the client XP PC and the network printer.

I've printed and read microsoft's instructions on internet connection sharing, and run windows7 troubleshooting and diagnostics multiple times. I believe everything is set up correctly. But the two xp pcs do not show on the networkdiagram, and the windows7 pc cannot get to the internet.

Possibly a simple firewall issue, but now i'm not sure after reading this post.

I have done NOTHING to the host XP PC nor to the client XP PC (other than restart the host PC, thinking that might be necessary after I got the LAN configured on the windows7 laptop).

What seems to work best is to change the Advanced Sharing Settings in Network & Sharing Center to "Enable file sharing for devices that use 40- or 56-bit enryption."

The other commonality seems to be that users who disable Services in Win7 can lose networking functionality. Win7 already has all Services not needed at Startup set to Manual on fast triggers. Tweaking Win7 beyond normal System settings will almost always come back to bite you.

Just in case anyone else is frustrated. Found this today.

Control Panel -> Network and Internet -> Network Connection -> Network Adapter Properties -> TCP/IPv4 Properties -> General -> Advanced -> WINS - NeyBIOS setting -> Default.

Quote: "Use NetBIOS setting from DHCP server. If static IP address is used or the DHCP server does not provide NetBIOS setting, enable NetBIOS over TCP/IP."

My XP machine was on static IP address. Once set to DHCP, W7 sees it immediately even if LLTD is not running. Alternatively do what the note above says: Check "Enable NetBIOS over TCP/IP". Make sure you use same workgroup name on both machines.

Hope it saves someone's time.

I had my network running just fine. Windows 7 PC and an XP Laptop. I hadn't used the laptop for 6 months or so.

I could ping its name and internal IP address from the Win7 machine. But no access to the XPs share folders or see it on the network map on my Win7 PC when I just tried.

To resolve this, from the XP, I did the following:

Control Panel > Right click on the adapter ("Local Area Connection") > Properties > "General" tab > "File and Printer Sharing for Microsoft Networks" was unticked.

I have no idea how that got unticked, but that resolved it for me.

I am experiencing a similar problem, but not the same as all responders. I recently upgraded my desktop to Windows 7 Professional with a separate partition, so I can still use it in XP Professional. Now I can not see my Windows XP Laptop when I boot up in Windows 7, nor can my XP laptop see my desktop when it is in Windows 7 mode. A friend has a Windows 7 Home Premium laptop, and I have no problem networking my XP laptop or desktop in XP mode with that W7HP laptop, and vice-versa.

Another interesting fact is that my W7Pro desktop sees all my other wifi devices (TV, Blu-ray, receiver, printer, roku) but not the XP computer. Not only that, but my XP laptop sees everything I just mentioned Except the W7Pro desktop.

I checked and double checked all the settings mentioned previously, including firewall settings, but no success.

Is there a simple solution? What is going on here? Is Windows 7 Pro just too complex to work for the average person?

Have you run the Sharing Wizard in XP Control Panel or from the Network Connections page?

In WIn7 have you enabled Network Discovery and File and Printer SHaring in Advanced Options of the Network and Sharing Center?

spartie76 said:

Is there a simple solution? What is going on here? Is Windows 7 Pro just too complex to work for the average person?

Click to expand...

Can you ping the other PC (PC name or IP address)? Try this from each PC.

RouterTech • RouterTech » Ping & IPConfig

Have a read of this thread I started recently...is the solution on there any use?
http://www.sevenforums.com/network-...g-xp-pc-but-can-access-its-share-folders.html

To Gregrocker: Tried your suggestions prior to posting, they were in previous posts.

To Rave79x: Ping succeswsful both ways, 2ms, no packet loss.

Up untill a few weeks ago, (running an XP and Win7 network) I had no problems with networking. Even using a USB printer installed on XP machine for printing from Win7 machine.
I have tried and tried to get the networking function back. (makes you want to tear your hair out, doesn't it)

Tonight I was looking (for the fifth time) at the properties of "Local Network Connection" on the Win7 computer and finally noticed this;

Sunbelt software firewall NDIS IM filter

mixed in with my ver 4 and 6 tcp/ip, Client for Microsoft Networks, etc.

I disabled the NDIS IM filter, and had my network working fine.
I think this thing was installed when I installed Spybot S&D or AdAware.

I had uninstalled them after I used them, maybe the uninstalls left the NDIS IM filter.

!!!Problem Solved!!!

I have been having this exact same issue for about six months now with no solution but to use the FQDN of my XP machine.

This is useless when my routed dumps all leases upon restart and i have a few wireless devices attached to the router, one being my xp laptop with the printer im trying to access. Thus having to fix the FQDN share name every time i restart my router is an absolute pain, not to mention very slow due to the inherent lag of a fully qualified name.

So I spent a few hours researching the problem and have found the solution to mine.

1. Disable the IPv6 protocol on your 7 machine (if you don't need it, this speeds up LLTD responder requests)

2. Open the network interface properties on the XP computer that is connected to the network. (mine is wireless so i select the wireless adapter properties)

3. Click the Advanced Tab

4. In the Windows Firewall Box, Click the Settings button.

5. On the first page, make sure the firewall is On, then uncheck the "Don't allow exceptions" checkbox.

6. Click on the "Exceptions" Tab, make sure the "File and Printer Sharing" checkbox in the list is checked.

Then click ok on this window and the adapter properties window, restart the computer and once the machine has rebooted back into windows, it should work fine.

I hope this helps anyone else that has been hiving this problem for as long as I have

I realize this is an old thread, and I hate to "necro" something this old, but after several hours of work, and after reading hundreds of posts, I think I finally figured out most of the reasons this problem happens. I was able to fix two Windows 7 computers so that they "play nice" with all of my older XP machines.

These fixes assume that your network is somewhat configured and that you can reach your XP shared folders from the Win7 computer by entering either that computer's local IP address (e.g., 192.168.1.44) or by entering its share name (e.g., \\polywellwin7-64). If you can't get to the other computers using either of these direct methods, then your problems lie elsewhere.

It turns out that there are multiple reasons this happens, and you have to fix them all. All the settings can be found on the Windows 7 machine in the Control Panel Networking section. Because this is a problem that affects fewer and fewer people, I'm going to punt on giving you exact instructions on where each of these settings is located, but you can get to them all from the Windows 7 Network and Sharing Center icon.

Here is what you need to do:

1. Turn off IPv6 IP protocol in adapter settings. If you have both wireless and wired (on a laptop), do them both. This is, by far, the most important change.

2. Change WORKGROUP name to WORK and then back to WORKGROUP. This is an ancient bug in Windows, going back to Win98. Doing this forces Windows to rebuild all the references to WORKGROUP.

3. Do NOT create a Homegroup, and if one was created, then make the change to leave it. (I actually don't know why MS created the Homegroup concept.)

4. File sharing connections: change from 128-bit to "40- or 56-bit encryption." This is mandatory.

5. Change the network from Home to Work. This is probably the least important change, and I'm not sure it is needed, so do this one last.

You'll need to re-boot in order for these changes to take effect and, hopefully, cure the problem.