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Thread: Extremely slow RTL8188CUS WiFi in 15.3

  1. #1

    Default Extremely slow RTL8188CUS WiFi in 15.3

    I have a Realtek Semiconductor Corp. RTL8188CUS 802.11n WLAN Adapter and it has become extremely slow in 15.3. I had to apply this workaround:

    modprobe -r rtl8192cu  
    echo "blacklist rtl8192cu"  >>  /etc/modprobe.d/blacklist.conf

    After disabling rtl8192cu it is working fine. However, as you can imagine, downloading anything during the installation took ages. Fortunately, most was on the DVD. At times I had download speeds of tens of kb/s.

  2. #2
    Join Date
    Mar 2011

    Default AW: Extremely slow RTL8188CUS WiFi in 15.3

    Which driver is running for that Chip?

    I would use a better named blacklist file, f. e. 50-blacklist8192cu.conf
    Last edited by Sauerland; 03-Jun-2021 at 01:40.

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