![]() ![]() ![]() It seems that Windows can/do connect to an AP in 802.11n mode/modulation even when WMM/QoS is disabled in the AP while Ubuntu can't or doesn't (as seen in the dmesg output see for example here).īut this is prima facie invisible - let alone unknown and bewildering to a new user coming from a different OS background and/or lacking knowledge of. no modulation change possible, no settings available in general) and after the things I finally found out yesterday, the mystery and the problem is probably solved, though not without its quirks and with full certainty. Wlan0 13 channels in total available frequencies :Ġx8B04 : Set Frequency/Channel (kernel generated)Ġx8B15 : New Access Point/Cell address - roaming Tx excessive retries:0 Invalid misc:82 Missed beacon:0īit Rates:1 Mb/s 2 Mb/s 5.5 Mb/s 11 Mb/s 18 Mb/sīit Rates:6 Mb/s 9 Mb/s 12 Mb/s 48 Mb/s Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Retry long limit:7 RTS thr=2347 B Fragment thr:off Product: RTL8188CE 802.11b/g/n WiFi AdapterĬapabilities: pm msi pciexpress bus_master cap_list ethernet physical wirelessĬonfiguration: broadcast=yes driver=rtl8192ce driverversion=3.13.0-45-generic firmware=N/A ip=192.168.1.2 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn Modinfo rtl8192ce filename: /lib/modules/3.13.0-45-generic/kernel/drivers/net/wireless/rtlwifi/rtl8192ce/rtl8192ce.ko firmware: rtlwifi/rtl8192cfwU_B.bin firmware: rtlwifi/rtl8192cfwU.bin firmware: rtlwifi/rtl8192cfw.bin description: Realtek 8192C/8188C 802.11n PCI wireless license: GPL author: Benjamin Porter author: Larry Finger author: Realtek WlanFAE author: lizhaoming srcversion: 53EBB785CF741A05F34B0A0 alias: pci:v000010ECd00008176sv*sd*bc*sc*i* alias: pci:v000010ECd00008177sv*sd*bc*sc*i* alias: pci:v000010ECd00008178sv*sd*bc*sc*i* alias: pci:v000010ECd00008191sv*sd*bc*sc*i* depends: rtlwifi,rtl8192c-common,mac80211 vermagic: 3.13.0-45-generic SMP mod_unload modversions parm: swenc:Set to 1 for software crypto (default 0) (bool) parm: ips:Set to 0 to not use link power save (default 1) (bool) parm: swlps:Set to 1 to use SW control power save (default 0) (bool) parm: fwlps:Set to 1 to use FW control power save (default 1) (bool) parm: debug:Set debug level (0-5) (default 0) (int) ![]() Lspci |grep -i network 02:00.0 Network controller: Realtek Semiconductor Co., Ltd. May I ask whether this is a bug or a feature? Moreover I simply cannot list or change the modulation settings/options. around 2.5MBps (again, actual measurement). ![]() On the same machine on Windows 7 on the other hand, the n part is also used connecting nominally in 150Mbps and achieving more or less thrice or four times the actual rate (actual measurement on personal lan by transfering huge files) I get on Ubuntu be it with the 14.04 default driver or with this one which I've installed trying to solve the problem I can only get at most a nominal 54Mbps rate (had inter alia also to set the rate manually cause before that the automatic method was casuing considerably lower rates and unstable ones, despite available signal power), i.e. My laptop has a Realtek 8188CE combo PCI-E NIC as you.very probably know this NIC is supposed to support all three of the b/g/n.īut it seems that on Ubuntu the n part is missing, is not used. Newbie here on Ubuntu etc., so please be gentle on 14.04 LTS. ![]()
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