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Thread: Acer Predator PH317-52, network stuck on 100MBit

  1. #1
    Join Date
    May 2020
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    Acer Predator PH317-52, network stuck on 100MBit

    Hi,

    I have an Acer Predator PH317-52 machine with Kubuntu 18.04 installed.
    Kernel version is 5.3.0-51-generic.
    The problem is the speed of Ethernet, it is stuck at 100Mbps and should be 1Gbps.
    The card in question, as stated by output of lspci, is:
    Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 12)
    I am not sure if the card is RTL8111, RTL8168 or the RTL8411, this is very confusing. From googling it seems to be RTL8168.

    I am certain that this card supports 1 Gbit and have also confirmed that all the other network gear is ok, I can get 1Gbit from Windows OS.
    I have tried manually setting the value to 1000 Mbps from network manager, but it wouldn't connect at all when i did this.
    I have also tried setting the autonegotiation on in network manager. I have tried both the steps below with ethtool too.
    All the settings apply successfully but autonegotiation always sets speed to 100Mbps and setting it to 1Gbit always fails to connect.
    I have tried installing the r8168-dkms package from apt-get but the results are the same (installation finished with no problems).
    Here is the output of ethtool:
    Code:
    ethtool enp7s0f1
    Settings for enp7s0f1
            Supported ports: [ TP ]
            Supported link modes:   10baseT/Half 10baseT/Full 
                                    100baseT/Half 100baseT/Full 
                                    1000baseT/Full 
            Supported pause frame use: Symmetric Receive-only
            Supports auto-negotiation: Yes
            Supported FEC modes: Not reported
            Advertised link modes:  10baseT/Half 10baseT/Full 
                                    100baseT/Half 100baseT/Full 
                                    1000baseT/Full 
            Advertised pause frame use: Symmetric Receive-only
            Advertised auto-negotiation: Yes
            Advertised FEC modes: Not reported
            Link partner advertised link modes:  10baseT/Half 10baseT/Full 
                                                 100baseT/Half 100baseT/Full 
            Link partner advertised pause frame use: Symmetric
            Link partner advertised auto-negotiation: Yes
            Link partner advertised FEC modes: Not reported
            Speed: 100Mb/s
            Duplex: Full
            Port: Twisted Pair
            PHYAD: 0
            Transceiver: internal
            Auto-negotiation: on
            MDI-X: Unknown
    Cannot get wake-on-lan settings: Operation not permitted
            Current message level: 0x00000033 (51)
                                   drv probe ifdown ifup
            Link detected: yes
    I don't know what to do next and I'm not even sure what the problem is.
    I would be grateful for any advice on how to proceed.

    Edit:
    With an USB3.0 ethernet adapter i get full 1Gbit connection speed.
    Last edited by vangoda; May 7th, 2020 at 09:34 AM. Reason: Extra information

  2. #2
    Join Date
    Nov 2012
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    Xubuntu Development Release

    Re: Acer Predator PH317-52, network stuck on 100MBit

    Thread moved to Networking & Wireless for a better fit

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