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

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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

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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!

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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+

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  1. Anonymous
    2009-11-29T15:07:26+00:00

    HI Olly, hi, all,

    Sorry to jump on the thread, but I have a very similar problem with slightly different hardware, so this might help to narrow down the cause. My setup is :

    • Synonlogy DS-109 NAS
    • FON wireless router
    • Sony Vaio W netbook with Windows 7 Starter preinstalled (Wireless chipset is an Atheros AR9285)

    The symptoms are exactly the same. Mapping drives works, but then accessing these folders leads to a timeout and the message stating that the network name is no longer available.

    Once I connect via wired connexion, everything works as it should. Others PCs on the network connect fine, including an old HP laptop which still has Windows 7 RC.

    All Windows updates as well as Vaio updates are installed, and I'm told I have the latest wireless netwook driver installed when I try to update it.

    So the common points between my setup and Olly's are :

    • Samba shares (I guess my NAS as well as Olly's use linux)
    • Windows 7 (different versions)
    • Wireless connexion

    Tried disabling Windows firewall, tried mapping via IP, to no avail.

    My opinion would be that something is broken between the IP stack and some wireless drivers in Windows 7.

    Any help is appreciated.

    Best regards,

    Vicne

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  2. Barb Bowman 80,810 Reputation points MVP Volunteer Moderator
    2009-11-29T11:48:14+00:00

    Olly, does this happen if you connect to the NAS via its IP address as

    opposed to MyNAS ?

    On Thu, 26-Nov-09 09:43:44 GMT, Olly_S wrote:

    Cody, Tried that too! (Sorry, I should have said, but I keep forgetting things

    I've already tried, since I've tried so many!) I noticed that there was an

    update (via Windows Update) recently to the Microsoft driver for the wireless

    adapter too, but that didn't help either. (The wireless card is based on the

    , in case that's useful diagnostic info...) I

    appreciate all your efforts to help - there must be a solution somewhere!! <br

    />

    _______________________

    Barb Bowman www.digitalmediaphile.com

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