Windows 7: Cannot access *some* folders on a Network Drive(NAS) via wireless connection

Anonymous
2009-10-24T19:04:36+00:00

I have recently installed Windows 7 Home Premium on my 2 Desktop PCs at home. They are connected via ethernet to a router. Also connected to the router is a Network Attached Storage device (a Buffalo Linkstation Live). From these PCs I can access files and folders on the shared drive with no problems (for example, I can access the folder \MyNAS\Share\Downloads).

However, on my laptop that connects wirelessly, while I can *see* all the folders on the NAS I can only access a few. For instance, I can see "\MyNAS\Share\Test" (which is an empty folder I created) but if I try to access "\MyNAS\Share\Downloads" it waits for a bit then tells me "\MyNAS\Share\Download is not accessible. You might not have permission to use this network resource. The specified network name is no longer available." Previously the laptop was running XP and I had no problems.

There are no passwords required to access the NAS. I have tried setting the network to both "Home" and "Work". I have tried enabling and disabling HomeGroup. The laptop can access shared folders on the other PCs.

I assume this is something related to wireless security? Please help!

Windows for home | Previous Windows versions | Internet and connectivity

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

0 comments
Answer accepted by question author
Anonymous
2012-06-11T10:19:53+00:00

Hi Kaylamarie12,

I had exactly the same issue with windows 7 not connecting wirelessly to my NAS, however there were no issues with a wired connection.

This is the only solution that worked for me (I think it has been suggested by Piptech earlier).

First start an administrator console by entering cmd into the searchbox on the start menu and then do ctrl+shift+enter instead of just enter. In the console enter the following commands to change the MTU:

netsh interface ipv4 show interfaces

Take note of the id number of the wireless interface.

netsh interface ipv4 set subinterface id mtu=1460 store=persistent

Was this answer helpful?

0 comments
Answer accepted by question author
Anonymous
2010-02-25T09:42:41+00:00

This took me months to find, but the answer is:-

============

First start an administrator console by entering cmd into the searchbox on the start menu and then do ctrl+shift+enter instead of just enter. In the console enter the following commands to change the MTU:

netsh interface ipv4 show interfaces

Take note of the id number of the wireless interface.

netsh interface ipv4 set subinterface id mtu=1460 store=persistent

This worked for me. Apparently it has to do with the wireless router (mine is a Thomson 780WL) not correctly dealing with the default mtu of 1500. There is no need to change the fixed cable interface, that works without problems, it's just the wireless interface that doesn't connect without this modification. More info can be found in this thread towards the bottom  Hope this helps!

Was this answer helpful?

0 comments
Answer accepted by question author
Anonymous
2010-01-31T13:45:58+00:00

Before I bought Win 7 I used Win Xp and had no problem whatsoever to connect to my NAS through the Speedtouch. So, there seems to be something regarding the combination Speedtouch and Win7. But, as I stated before - a new firmware for my Speedtouch fixed it all.

Olly - are you sure you're using the latest firmware for your 716? Sometimes internet service providers keep old "custom made" firmwares just for their convenience. I've seen firmware v6.2.17.5. Is it the one you have?

Gust+

Was this answer helpful?

0 comments

79 additional answers

Sort by: Most helpful
Most helpful Newest Oldest
  1. Anonymous
    2010-01-10T19:35:44+00:00

    Just FYI for anyone that stumbles across tis same issue and CAN hit it by IP.

    I spent a great deal of time working this issue on several platforms based on the win7 kernel.  It has to do with devices that don't primarily use ipv6. If the Windows machine picks up an IPv6 address it assumes that everything else on the network will too, even though most NAS devices don't use v6. 

    So if you can hit the box with IP but NetBIOS/WINS name there's a mod that has to be set in the registry. http://itknowledgeexchange.techtarget.com/network-administrator/disable-ipv6-over-all-interfaces-and-prefer-ipv4-to-ipv6/

    At least on XP Sp3 machines you can just add the IPv6 service to get traffic to pass, which is easier than modify every registry.  Which is probably part of the driver update - alternately, uncheck the IPv6 checkbox in the adapter properties.

    Three days of working the issue in July09 to figure that out.

    Was this answer helpful?

    0 comments
  2. Barb Bowman 80,810 Reputation points MVP Volunteer Moderator
    2010-01-10T16:41:49+00:00

    I think you will find that this issue is fixed in W7 RTM. It was indeed an issue

    on 7100.

    On Sun, 10-Jan-10 10:56:31 GMT, biggles615 wrote:

    MS Windows 7 Evaluation Copy Build 7100

    Barb Bowman www.digitalmediaphile.com

    Was this answer helpful?

    0 comments