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Windows 7: QNAP NAS and XP machine not visible from one of 2 Win7 machines

20 Dec 2013   #1

Windows 7 Ultimate x64
QNAP NAS and XP machine not visible from one of 2 Win7 machines

Hi there,

I am having problems properly networking a computer. ( Again! GRRR!!)
I am trying to revive an old laptop by installing Windows 7-64 (Ultimate edition)
The Laptop is connected to the network using a static IP ( [originally the IP was assigned by the Laptop but later this was switched to the router - see step 7 below]
I currently have the laptop connected via Ethernet but I tried connecting wireless and had the exact same problem.
There is no third party firewall or AV software - only MS Security Essentials and the Windows Firewall
There is no domain or HOMEgroup on this network - everything connects to the same WORKgroup.
All Windows XP and Windows 7 machines have an account with the same name.

Here is what's happening:
* Existing Win7-64 Desktop (wired): can see and access all devices on the network
including the "new" Win7-64 Laptop, a Win-XP machine as well as NAS1 and NAS2
* Existing Win-XP Machine (wired) can see and access all devices on the network
including the "new" Win7-64 Laptop, the existing Win7-64 desktop and NAS1 and NAS2
* "New" Win7-64 laptop can "see" the Win7-64 Desktop but NOT the Win-XP machine or the NAS1 (NAS2 shows up)
Both, Win-XP and NAS1 can be "pinged" (using the IP addresses) from the laptop.
Other devices on the network (Camera, Printer, Router, NAS2) are visible without giving me any grief

I can live without access to the XP machine but I have to have access to the NAS1 as that is, where my backups are supposed to go.

Here are the steps I have taken to attempt to trouble-shoot the problem:
1. In Control Panel / System: Verify workgroup to be correct
2. In Change Adapter Settings / IPV4 settings: "ENABLE NetBIOS over TCP/IP" (this was originally needed because of the use of a static IP but has been changed after the IP assignment was shifted to the router - see step 7 below)
3. In Advanced Sharing Settings
* Turn ON network discovery
* Turn ON File and Printer Sharing
* Turn ON sharing so anyone with network access can read and write files in public folders
* Turn ON Media Sharing (this doesn't really have anything to do with the problem)
* ENABLE file sharing for devices that use 40- or 56-bit encryption
* Turn OFF password protected sharing
* Allow Windows to to manage Homegroup connection (but machine is not in any homegroup)
4. In Adapter settings/Adapter//Properties/TCP-IPV4 Turn off IPV6 connectivity (just in case that messes things up)
5. In Control Panel / Folder Options / View turn OFF "Use Sharing Wizard" (now I'm really grasping at straws)
6. Uninstall / re-install network adapters as per
Fix for - Cannot access NAS Drives, \\Share\Folder is not accessible or "Error code: 0x80070035 The network path was not found"
This, on one occasion temporarily "fixed" the WIRED connection by re-setting it from a static IP to the default IP assigned by the router: Both, the XP machine and the NAS1 were visible at that point but the wireless connection remained "half-baked" and could not see the XP machine or the NAS1. Later on, after attempting various other solutions, I have not been able to replicate this temporary "fix".
7. I got tired of having to re-enter the static IP and the DNS servers so I finally went into the router management page - LAN-DHCP Server tab and assigned a fixed IP (based on the MAC address) from there.

Are there any other things I forgot to check or do I just need a bigger hammer?

Why can't the folks at Microfluff come up with a way to get networking actually WORKING?
It seems like I am having trouble with every machine I try to work on.

My System SpecsSystem Spec
21 Dec 2013   #2

Windows 7 Ultimate x64
Additional Information re Master Browser

I found out that - for some unknown reason - there were TWO machines designated as Master Browser on my network. I shut down every machine on the network and then powered them on in the desired sequence. I ended up with a single machine designated as a Master Browser and all machines can see all devices on the network - including NAS1 and NAS2. (Thanks to Scottie at How to Determine the Master Browser in a Windows Workgroup | Scottie?s Tech.Info who makes a free tool to check which machine(s) on your network is the master browser)
The big question now is, how did I end up with two master browsers and more importantly, how do I prevent this from happening again?
My System SpecsSystem Spec

 QNAP NAS and XP machine not visible from one of 2 Win7 machines

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