Whenever I boot up my computer, speedtest.net shows an internet speed in excess of 20 Mbps. After around five minutes it consistently drops down to just over 1 Mbps and stays at that download speed. The upload speed remains unchanged at around 3 Mbps. I checked Glasnot just to check if my ISP was somehow throttling my internet but this doesn't seem to be the case. My other laptop and those of my housemates all show download speeds of over 20 Mbps.
I have a system76 Lemur Ultra laptop. I have tried restoring the system and also installing the latest drivers from system76 (Driver Version 3.2.3).
Here are the specs I get when I run the following command:
cat /etc/lsb-release; uname -a
lspci -nnk | grep -iA2 net
rfkill list all
I saw the following fix used a lot in this forum and decided to give it a try:
ciaran@ciaran-Lemur-Ultra:~$ cat /etc/lsb-release; uname -a
Linux ciaran-Lemur-Ultra 3.5.0-19-generic #30-Ubuntu SMP Tue Nov 13 17:48:01 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
ciaran@ciaran-Lemur-Ultra:~$ lspci -nnk | grep -iA2 net
02:00.0 Network controller : Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter [10ec:8176] (rev 01)
Subsystem: Realtek Semiconductor Co., Ltd. Device [10ec:9196]
Kernel driver in use: rtl8192ce
03:00.0 Ethernet controller : JMicron Technology Corp. JMC250 PCI Express Gigabit Ethernet Controller [197b:0250] (rev 05)
Subsystem: CLEVO/KAPOK Computer Device [1558:4140]
Kernel driver in use: jme
eth0 no wireless extensions.
lo no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:"BlackFish"
Mode:Managed Frequency:2.412 GHz Access Point: 00:24:B2:25:B8:76
Bit Rate=18 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thr=2347 B Fragment thr:off
Link Quality=66/70 Signal level=-44 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:18929 Missed beacon:0
ciaran@ciaran-Lemur-Ultra:~$ rfkill list all
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
When I run the third command I get the following error and I cannot reconnect to the wireless.
sudo ifconfig wlan0 down
sudo rmmod -f rtl8192ce
sudo modprobe rtl8192ce nohwcrypt=1
sudo ifconfig wlan0 up
I am not sure if this problem has something to do with the specific Realtek rtl8192ce kernal driver that system76 use. At this point, I am at a loss with what to do. Any help would be greatly appreciated.
FATAL: Error inserting rtl8192ce (/lib/modules/3.5.0-19-generic/kernel/drivers/net/wireless/rtlwifi/rtl8192ce/rtl8192ce.ko): Invalid argument