I've recently installed LMDE and encountered some problems with wireless. Network manager shows the network as "established" but, in practice, the connection fluctuates from "slow" to "non responding" (pinging 8.8.8.8 shows "destination host unreachable), then back to "slow". I have no idea what's wrong (I'm dual booting with Win7 where everything works fine). Previously I worked on Ubuntu 12.04 and had similar problems.
Output of some commands:
- iwconfig
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lo no wireless extensions.
eth1 no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:"UPC011225"
Mode:Managed Frequency:2.412 GHz Access Point: 00:24:D1:7A:1F:AA
Bit Rate=1 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thr=2347 B Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=50/70 Signal level=-60 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
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eth1 Link encap:Ethernet HWaddr 60:eb:69:f1:99:d7
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:48
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:26855 errors:0 dropped:0 overruns:0 frame:0
TX packets:26855 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:73805547 (70.3 MiB) TX bytes:73805547 (70.3 MiB)
wlan0 Link encap:Ethernet HWaddr 68:a3:c4:6e:ec:40
inet addr:192.168.0.16 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::6aa3:c4ff:fe6e:ec40/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:7622 errors:0 dropped:0 overruns:0 frame:0
TX packets:6406 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:6143178 (5.8 MiB) TX bytes:1038808 (1014.4 KiB)
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09:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter [10ec:8176] (rev 01)
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Module Size Used by
aes_x86_64 16796 1
aes_generic 33026 1 aes_x86_64
cpufreq_stats 12866 0
cpufreq_conservative 13147 0
cpufreq_userspace 12576 0
cpufreq_powersave 12454 0
binfmt_misc 12957 1
fuse 61981 1
loop 22641 0
dm_crypt 22586 0
dm_mod 63545 1 dm_crypt
snd_hda_codec_hdmi 30783 4
arc4 12458 2
nvidia 10823460 41
snd_hda_codec_conexant 45252 1
rtl8192ce 132562 0
snd_hda_intel 26345 3
snd_hda_codec 78031 3 snd_hda_intel,snd_hda_codec_conexant,snd_hda_codec_hdmi
snd_hwdep 13186 1 snd_hda_codec
snd_pcm_oss 41081 0
snd_mixer_oss 17916 1 snd_pcm_oss
snd_pcm 63900 4 snd_pcm_oss,snd_hda_codec,snd_hda_intel,snd_hda_codec_hdmi
rtlwifi 110243 1 rtl8192ce
snd_page_alloc 13003 2 snd_pcm,snd_hda_intel
snd_seq_midi 12848 0
snd_seq_midi_event 13316 1 snd_seq_midi
mac80211 192768 2 rtlwifi,rtl8192ce
cfg80211 137140 2 mac80211,rtlwifi
snd_rawmidi 23060 1 snd_seq_midi
uvcvideo 57744 0
videodev 70889 1 uvcvideo
v4l2_compat_ioctl32 16655 1 videodev
snd_seq 45093 2 snd_seq_midi_event,snd_seq_midi
snd_seq_device 13176 3 snd_seq,snd_rawmidi,snd_seq_midi
snd_timer 22917 2 snd_seq,snd_pcm
media 18148 2 videodev,uvcvideo
snd 52850 18 snd_timer,snd_seq_device,snd_seq,snd_rawmidi,snd_pcm,snd_mixer_oss,snd_pcm_oss,snd_hwdep,snd_hda_codec,snd_hda_intel,snd_hda_codec_conexant,snd_hda_codec_hdmi
iTCO_wdt 17081 0
i2c_i801 16870 0
iTCO_vendor_support 12704 1 iTCO_wdt
joydev 17266 0
i2c_core 23876 3 i2c_i801,videodev,nvidia
toshiba_acpi 17649 0
sparse_keymap 12760 1 toshiba_acpi
rfkill 19012 4 toshiba_acpi,cfg80211
coretemp 12898 0
acpi_cpufreq 12935 1
soundcore 13065 1 snd
battery 13109 0
mperf 12453 1 acpi_cpufreq
evdev 17562 21
wmi 13243 0
psmouse 64455 0
serio_raw 12931 0
pcspkr 12579 0
video 17628 0
processor 28157 1 acpi_cpufreq
button 12937 0
ac 12624 0
thermal_sys 18040 2 processor,video
power_supply 13475 2 ac,battery
ext4 350411 2
crc16 12343 1 ext4
jbd2 62015 1 ext4
mbcache 13065 1 ext4
btrfs 505480 0
libcrc32c 12426 1 btrfs
zlib_deflate 25638 1 btrfs
sd_mod 36136 4
crc_t10dif 12348 1 sd_mod
sr_mod 21899 0
cdrom 35401 1 sr_mod
usbhid 36379 0
hid 81288 1 usbhid
ehci_hcd 40215 0
crc32c_intel 12747 1
ghash_clmulni_intel 13133 0
cryptd 14517 1 ghash_clmulni_intel
ahci 24997 3
libahci 22860 1 ahci
libata 140589 2 libahci,ahci
xhci_hcd 73170 0
scsi_mod 162372 3 libata,sr_mod,sd_mod
usbcore 128498 5 xhci_hcd,ehci_hcd,usbhid,uvcvideo
usb_common 12354 1 usbcore
atl1c 32258 0
The machine is Toshiba L750 i5-2410m.
Cheers