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Greatly reduced wifi speed on Ubuntu 18 with multiple network cards


Ubuntu doesn't reconnect to WiFi unless I rebootrt3290 wifi ubuntu reactivate 16.04All Network in ubuntu 14 have been removed and can't connect to internetWifi connections not showing up on ubuntu 16.04






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I have a 500mbps connection which I receive in full on both my Macbook and my Android phone, but I can only get 40mbps on my Ubuntu 18.04 desktop.



I have tried both my built-in network card (a realtek RTL8192CE) and an external TP-LINK TL-WN722N, but both are getting approximately the same speed.



My kernel version is 4.15.0-50-generic.



So far, I have tried the following:

* disabling ipv6

* turning off device power management

* installing some updated drivers from here

* attempted installing tplink drivers but they didn't seem to be compatible with my kernel version

* turning off PCIe Activate State Power Management



Any advice would be muchly appreciated!



Some other relevant diagnostics:



lshw output:



 *-network 
description: Wireless interface
product: RTL8192CE PCIe Wireless Network Adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlp3s0
version: 01
serial: someserialnumber
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtl8192ce driverversion=4.15.0-50-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11
resources: irq:19 ioport:3000(size=256) memory:a3200000-a3203fff
*-network



lspci output:



03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8192CE PCIe Wireless Network Adapter (rev 01)









share|improve this question


























  • Please edit to include results for cat /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf; grep [[:alnum:]] /sys/module/rtl8192ce/parameters/*

    – Jeremy31
    May 28 at 22:04

















2

















I have a 500mbps connection which I receive in full on both my Macbook and my Android phone, but I can only get 40mbps on my Ubuntu 18.04 desktop.



I have tried both my built-in network card (a realtek RTL8192CE) and an external TP-LINK TL-WN722N, but both are getting approximately the same speed.



My kernel version is 4.15.0-50-generic.



So far, I have tried the following:

* disabling ipv6

* turning off device power management

* installing some updated drivers from here

* attempted installing tplink drivers but they didn't seem to be compatible with my kernel version

* turning off PCIe Activate State Power Management



Any advice would be muchly appreciated!



Some other relevant diagnostics:



lshw output:



 *-network 
description: Wireless interface
product: RTL8192CE PCIe Wireless Network Adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlp3s0
version: 01
serial: someserialnumber
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtl8192ce driverversion=4.15.0-50-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11
resources: irq:19 ioport:3000(size=256) memory:a3200000-a3203fff
*-network



lspci output:



03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8192CE PCIe Wireless Network Adapter (rev 01)









share|improve this question


























  • Please edit to include results for cat /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf; grep [[:alnum:]] /sys/module/rtl8192ce/parameters/*

    – Jeremy31
    May 28 at 22:04













2












2








2








I have a 500mbps connection which I receive in full on both my Macbook and my Android phone, but I can only get 40mbps on my Ubuntu 18.04 desktop.



I have tried both my built-in network card (a realtek RTL8192CE) and an external TP-LINK TL-WN722N, but both are getting approximately the same speed.



My kernel version is 4.15.0-50-generic.



So far, I have tried the following:

* disabling ipv6

* turning off device power management

* installing some updated drivers from here

* attempted installing tplink drivers but they didn't seem to be compatible with my kernel version

* turning off PCIe Activate State Power Management



Any advice would be muchly appreciated!



Some other relevant diagnostics:



lshw output:



 *-network 
description: Wireless interface
product: RTL8192CE PCIe Wireless Network Adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlp3s0
version: 01
serial: someserialnumber
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtl8192ce driverversion=4.15.0-50-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11
resources: irq:19 ioport:3000(size=256) memory:a3200000-a3203fff
*-network



lspci output:



03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8192CE PCIe Wireless Network Adapter (rev 01)









share|improve this question















I have a 500mbps connection which I receive in full on both my Macbook and my Android phone, but I can only get 40mbps on my Ubuntu 18.04 desktop.



I have tried both my built-in network card (a realtek RTL8192CE) and an external TP-LINK TL-WN722N, but both are getting approximately the same speed.



My kernel version is 4.15.0-50-generic.



So far, I have tried the following:

* disabling ipv6

* turning off device power management

* installing some updated drivers from here

* attempted installing tplink drivers but they didn't seem to be compatible with my kernel version

* turning off PCIe Activate State Power Management



Any advice would be muchly appreciated!



Some other relevant diagnostics:



lshw output:



 *-network 
description: Wireless interface
product: RTL8192CE PCIe Wireless Network Adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlp3s0
version: 01
serial: someserialnumber
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtl8192ce driverversion=4.15.0-50-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11
resources: irq:19 ioport:3000(size=256) memory:a3200000-a3203fff
*-network



lspci output:



03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8192CE PCIe Wireless Network Adapter (rev 01)






networking drivers wireless 18.04 realtek-wireless






share|improve this question














share|improve this question











share|improve this question




share|improve this question










asked May 28 at 21:53









Patrick McClurgPatrick McClurg

111 bronze badge




111 bronze badge















  • Please edit to include results for cat /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf; grep [[:alnum:]] /sys/module/rtl8192ce/parameters/*

    – Jeremy31
    May 28 at 22:04

















  • Please edit to include results for cat /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf; grep [[:alnum:]] /sys/module/rtl8192ce/parameters/*

    – Jeremy31
    May 28 at 22:04
















Please edit to include results for cat /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf; grep [[:alnum:]] /sys/module/rtl8192ce/parameters/*

– Jeremy31
May 28 at 22:04





Please edit to include results for cat /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf; grep [[:alnum:]] /sys/module/rtl8192ce/parameters/*

– Jeremy31
May 28 at 22:04










1 Answer
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oldest

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1


















The user manual for the RTL8192E shows it is 2.4GHz only.

Likewise, the TP-Link TL-WL722N is 2.4GHz only.



Any 500Mbps connection will be using 5GHz frequencies, but neither of your WiFi adapters are 5GHz-capable.



If you leapfrog over WiFi and use an Ethernet cable for the desktop, you will get faster connections than 5GHz can provide; you can get flat cable in various lengths which you can carpet-tape to the baseboard or run under carpet, if you want the cable to be unobtrusive. Otherwise, get a 5GHz capable WiFi adapter.






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    1 Answer
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    1 Answer
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    1


















    The user manual for the RTL8192E shows it is 2.4GHz only.

    Likewise, the TP-Link TL-WL722N is 2.4GHz only.



    Any 500Mbps connection will be using 5GHz frequencies, but neither of your WiFi adapters are 5GHz-capable.



    If you leapfrog over WiFi and use an Ethernet cable for the desktop, you will get faster connections than 5GHz can provide; you can get flat cable in various lengths which you can carpet-tape to the baseboard or run under carpet, if you want the cable to be unobtrusive. Otherwise, get a 5GHz capable WiFi adapter.






    share|improve this answer
































      1


















      The user manual for the RTL8192E shows it is 2.4GHz only.

      Likewise, the TP-Link TL-WL722N is 2.4GHz only.



      Any 500Mbps connection will be using 5GHz frequencies, but neither of your WiFi adapters are 5GHz-capable.



      If you leapfrog over WiFi and use an Ethernet cable for the desktop, you will get faster connections than 5GHz can provide; you can get flat cable in various lengths which you can carpet-tape to the baseboard or run under carpet, if you want the cable to be unobtrusive. Otherwise, get a 5GHz capable WiFi adapter.






      share|improve this answer






























        1














        1










        1









        The user manual for the RTL8192E shows it is 2.4GHz only.

        Likewise, the TP-Link TL-WL722N is 2.4GHz only.



        Any 500Mbps connection will be using 5GHz frequencies, but neither of your WiFi adapters are 5GHz-capable.



        If you leapfrog over WiFi and use an Ethernet cable for the desktop, you will get faster connections than 5GHz can provide; you can get flat cable in various lengths which you can carpet-tape to the baseboard or run under carpet, if you want the cable to be unobtrusive. Otherwise, get a 5GHz capable WiFi adapter.






        share|improve this answer
















        The user manual for the RTL8192E shows it is 2.4GHz only.

        Likewise, the TP-Link TL-WL722N is 2.4GHz only.



        Any 500Mbps connection will be using 5GHz frequencies, but neither of your WiFi adapters are 5GHz-capable.



        If you leapfrog over WiFi and use an Ethernet cable for the desktop, you will get faster connections than 5GHz can provide; you can get flat cable in various lengths which you can carpet-tape to the baseboard or run under carpet, if you want the cable to be unobtrusive. Otherwise, get a 5GHz capable WiFi adapter.







        share|improve this answer















        share|improve this answer




        share|improve this answer








        edited May 29 at 23:56

























        answered May 28 at 23:41









        K7AAYK7AAY

        5,8045 gold badges19 silver badges48 bronze badges




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