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  1. #1
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    Default LAN speed between computers

    If a file is transferred from my W7 computer to another computer on the LAN (linuxmint), the data rate is fairly pathetic, 10MB/s or so. Buf if the same exercise is repeated with the computers connected directly to each other with a crossover cable, bypassing the modem/router, the data rate is about 46 - 48MB/s, a great improvement.

    Why does this happen? I gather that W7 does not have a reputation for good speeds sending to other computers on a LAN, but there is something else at play here?

    Thanks for your thoughts.

  2. #2
    Unknown Device wratterus's Avatar
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    Default Re: LAN speed between computers

    You sure you're using a gigabit switch/router?
    Microsoft: "You've got questions. We've got dancing paperclips."

  3. #3
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    Default Re: LAN speed between computers

    Quote Originally Posted by wratterus View Post
    You sure you're using a gigabit switch/router?
    It's a Huawei B315.

  4. #4
    Unknown Device wratterus's Avatar
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    Default Re: LAN speed between computers

    Yep only 10/100 ports. Best bet would be to get a 5 port (or however many ports you want) gigabit switch.
    Microsoft: "You've got questions. We've got dancing paperclips."

  5. #5
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    Default Re: LAN speed between computers

    Quote Originally Posted by wratterus View Post
    Yep only 10/100 ports. Best bet would be to get a 5 port (or however many ports you want) gigabit switch.
    I'm confused on this point. One source says this router has 4x RJ-45 for Gigabit Ethernet. Another says 4 x 10/100 ports. And 3 x 10/100Mbps LAN Ports + 1 x 10/100Mbps WAN/LAN port

  6. #6
    Senior Member 1101's Avatar
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    Default Re: LAN speed between computers

    Quote Originally Posted by rumpty View Post
    I'm confused on this point. One source says this router has 4x RJ-45 for Gigabit Ethernet. Another says 4 x 10/100 ports. And 3 x 10/100Mbps LAN Ports + 1 x 10/100Mbps WAN/LAN port
    Even huawei dont want to disclose the actual specs it seems, could a reason why.
    https://consumer.huawei.com/nz/smart-home/b315/

    "through its Gigabit Ethernet port"
    "Gigabit Ethernet port" , as in singular? . Perhaps the other ports are only 10/100 .
    It must still be 1998 it seems :-)

  7. #7
    Senior Member paulw's Avatar
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    Default Re: LAN speed between computers

    This site says https://www.wootware.co.za/huawei-b3...ss-router.html

    - Huawei B315 Wireless LTE Router for all network operators
    - IP address cannot be changed
    - 4x 10/100 Ports
    - SIM is physically inserted into the device
    - Two SMA connector for external antenna
    - Connect up to 32 Simultaneous devices
    - White in colour
    - LTE Cat 4:100/50Mbps @ 20M BW
    - Two Small antennas in the pack
    Regards,

    Paul W
    Taco Bell is not a Mexican telephone company

  8. #8
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    Default Re: LAN speed between computers

    However, 100MB/s is VERY roughly equivalent to a Gigabit/s? Is that what the specs are saying?

  9. #9
    Unknown Device wratterus's Avatar
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    Default Re: LAN speed between computers

    I'm certain that the B315s Ethernet is only 10/100. The B315 may be a different model, but pretty sure all the providers use the 315s in NZ.
    This is 100Mbps, not 100MB/Sec. (Mega bits per second, not Mega bytes per second.) LAN speeds are always reported in bits per second, not bytes.

    100MB/sec is 800Mbps. The theoretical max transfer rate over gigabit when overheads are accounted for is around 115 - 120MB/sec.

    If by some miracle you are constantly getting over 100Mbps on fixed wireless and want to make use of that speed, a newer modem like the B618 or the B525 does have gigabit LAN ports, I don't think you can generally just change out fixed wireless modems though, you would have to check with your provider. Also the B618 only has 2 LAN ports, and it uses the smaller TS9 antenna connectors so if you use an external antenna you would need a SMA to TS9 adapter.

    Far easier and cheaper option to improve your LAN speeds is just to get a gigabit switch.
    Last edited by wratterus; 22-08-2019 at 04:35 PM.
    Microsoft: "You've got questions. We've got dancing paperclips."

  10. #10
    amateur expert dugimodo's Avatar
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    Default Re: LAN speed between computers

    Yeah get a gigabit switch, they are cheap $20-30 or so, connect one port from the router to the switch and connect all your PCs to the switch also. That gives you gigabit between PCs and 100Mbps to the internet which for most connections is all you need.

    Also minor detail, there is no need for a crossover cable with gigabit ethernet only 10/100. They work differently and you can use any straight cable between gigabit ports.
    Ryzen 2700X, 16Gb DDR4RAM, 512GB M.2 NVME SSD, MSI GTX1070

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