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  1. #1
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    Wireless network issues

    I have a wireless-n router and I'm getting some terrible transfer rates on the network. Trying to move some large files from my laptop to my NAS and its taking 18 hours or more: less than 100 KB/sec. The weird thing is I get over 15 Mb/sec on the internet speed test, while moving a file My connection says I'm connected at 270 Mb/sec. Any ideas what could be slowing my transfers down? This laptop is the only thing connected wireless to the router. Everything else is wired.



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    Re: Wireless network issues

    What are you moving the files to? Another machine on the network or an NAS?


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    Re: Wireless network issues

    Some NAS devices are very slow. Google yours to see what other people are saying.



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    NAS

    Quote Originally Posted by TykeClone View Post
    What are you moving the files to? Another machine on the network or an NAS?
    NAS



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    Quote Originally Posted by CyFever View Post
    Some NAS devices are very slow. Google yours to see what other people are saying.
    No problems transferring files from a wired machine to it.



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    Re: Wireless network issues

    OK so internet to laptop speeds are OK. Desktop to NAS speeds are OK. Laptop to NAS speeds are slow. Is that the picture?

    Are you testing the laptop speeds under the same conditions, especially location in your house? Wireless speeds are maximums and can drop off severely depending on distance and other interference.



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    Re: Wireless network issues

    Quote Originally Posted by CyFever View Post
    OK so internet to laptop speeds are OK. Desktop to NAS speeds are OK. Laptop to NAS speeds are slow. Is that the picture?

    Are you testing the laptop speeds under the same conditions, especially location in your house? Wireless speeds are maximums and can drop off severely depending on distance and other interference.
    Internet to laptop and NAS to laptop are same conditions. Desktop to NAS is wired.



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    Re: Wireless network issues

    Quote Originally Posted by 1100011CS View Post
    Internet to laptop and NAS to laptop are same conditions. Desktop to NAS is wired.
    Is the NAS wireless or only attached to the wired network?


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    Re: Wireless network issues

    Quote Originally Posted by TykeClone View Post
    Is the NAS wireless or only attached to the wired network?
    The NAS is wired to the router. Gigabit router and NAS adapter.



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    Re: Wireless network issues

    Quote Originally Posted by 1100011CS View Post
    The NAS is wired to the router. Gigabit router and NAS adapter.
    Do you have any other machine on the wireless network that you can test transfer speeds with?


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    Re: Wireless network issues

    Quote Originally Posted by TykeClone View Post
    Do you have any other machine on the wireless network that you can test transfer speeds with?
    I have another laptop that is usually in a docking station wired to network but I'll try that one wireless tonight. Thanks for the idea.



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    Re: Wireless network issues

    is there absolutely a reason why you just can't transfer it while connected to a wired port? Wireless in general is never going to be as fast and reliable and whenever I am transfering large files to/from my laptop I'd rather just plug it in and do it that way and save some time.


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    Re: Wireless network issues

    I have a few questions:

    1) What are you using to transfer? SMB? FTP? SFTP?

    Obviously some transfer methods are going to be faster than others, just based on the protocol design.

    2) Is this a few large files? Or a boatload of small files?

    A single (or small number) of large files will take less time to transfer than a bunch of smaller files, probably mostly due to disk speed constraints and all the extra writes that accompany each new file creation on the NAS.

    I'm not sure if network protocols suffer from this same limitation. Does each new file automatically initiate a new connection or anything like that? That would definitely slow down over wireless due to the extra negotiations that would have to happen. That is pure speculation on my part. I'm sure someone more adept at analyzing network captures could weigh-in on that. I may be way off-base.

    I know when I transfer files via FTP on my internal network, if I'm transferring some large ISO images or something, I get really fast connection rates, but if I'm transferring a bunch of pictures or smaller files like that, I get about 10% of the speed I see with larger files.

    Just something else to think about...



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    Re: Wireless network issues

    Quote Originally Posted by HawkFanISUalum View Post
    I'm not sure if network protocols suffer from this same limitation. Does each new file automatically initiate a new connection or anything like that? That would definitely slow down over wireless due to the extra negotiations that would have to happen. That is pure speculation on my part. I'm sure someone more adept at analyzing network captures could weigh-in on that. I may be way off-base.
    TCP/IP (or UDP/IP) don't know and don't care about what a file is, all they do is transfer bytes of data from one point to another.

    The protocol on top of that (FTP, etc) would deal with whether or not they intiate connections on a per file basis. If they do, that can certainly increase total transfer time, but if it's over your home network I doubt it would be noticable.



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    Re: Wireless network issues

    Quote Originally Posted by HawkFanISUalum View Post
    I have a few questions:

    1) What are you using to transfer? SMB? FTP? SFTP?

    Obviously some transfer methods are going to be faster than others, just based on the protocol design.

    2) Is this a few large files? Or a boatload of small files?

    A single (or small number) of large files will take less time to transfer than a bunch of smaller files, probably mostly due to disk speed constraints and all the extra writes that accompany each new file creation on the NAS.

    I'm not sure if network protocols suffer from this same limitation. Does each new file automatically initiate a new connection or anything like that? That would definitely slow down over wireless due to the extra negotiations that would have to happen. That is pure speculation on my part. I'm sure someone more adept at analyzing network captures could weigh-in on that. I may be way off-base.

    I know when I transfer files via FTP on my internal network, if I'm transferring some large ISO images or something, I get really fast connection rates, but if I'm transferring a bunch of pictures or smaller files like that, I get about 10% of the speed I see with larger files.

    Just something else to think about...

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