I am running a dualboot setup on my Lenovo Flex2 with Windows 10 and Ubuntu 15.10. I am on the rtlwifi - rtl8723be wireless card. While my wifi disconnect issue has been resolved, I have found out that my wifi speed is 3 times less than what I get on Windows 10.  I have a 15 Mbps broadband connection. I consistently get the same speed of 15 mbps on windows but a maximum of 5 Mbps on Ubuntu. On my Android phone I get around 12 to 13.5 Mbps.  I am on channel 6 (2437MHz) of the wifi router with AES encryption .Router is Tenda_3623D8. Current connection of my Ubuntu machine is on the 40M bandwidth as per the router status page.  Any idea how to reach a better speed on Ubuntu?
3335
I have installed Ubuntu 15.04 on my laptop with RTL8723BE Wi-fi card. But it is always disconnecting from network. I have tried echo "options rtl8723be fwlps=N ips=N" | sudo tee /etc/modprobe.d/rtl8723be.conf but that didn't helped. What can I do to prevent the wifi from disconnecting? If I upgrade to kernel 4.X, will it help?  ~$ lspci -knn | grep Net -A2  09:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter [10ec:b723]     Subsystem: Hewlett-Packard Company Device [103c:2231]     Kernel driver in use: rtl8723be   ~$ rfkill list 0: hci0: Bluetooth     Soft blocked: yes     Hard blocked: no 1: phy0: Wireless LAN     Soft blocked: no     Hard blocked: no   ~$ ifconfig &amp;&amp; iwconfig &amp;&amp; route -n &amp;&amp; ping -c 1 google.com eth0      Link encap:Ethernet  HWaddr 38:63:bb:cd:4a:7e             UP BROADCAST MULTICAST  MTU:1500  Metric:1           RX packets:3 errors:0 dropped:0 overruns:0 frame:0           TX packets:53 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000            RX bytes:752 (752.0 B)  TX bytes:8445 (8.4 KB)  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:65536  Metric:1           RX packets:3870 errors:0 dropped:0 overruns:0 frame:0           TX packets:3870 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:0            RX bytes:314613 (314.6 KB)  TX bytes:314613 (314.6 KB)  wlan0     Link encap:Ethernet  HWaddr c0:38:96:6d:c4:83             inet addr:192.168.1.205  Bcast:192.168.1.255  Mask:255.255.255.0           inet6 addr: fe80::c238:96ff:fe6d:c483/64 Scope:Link           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1           RX packets:15240 errors:0 dropped:0 overruns:0 frame:0           TX packets:14627 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000            RX bytes:14410285 (14.4 MB)  TX bytes:2192744 (2.1 MB)  eth0      no wireless extensions.  wlan0     IEEE 802.11bgn  ESSID:"DIR-615"             Mode:Managed  Frequency:2.437 GHz  Access Point: 00:90:4C:08:00:0D              Bit Rate=150 Mb/s   Tx-Power=20 dBm              Retry short limit:7   RTS thr=2347 B   Fragment thr:off           Power Management:off           Link Quality=70/70  Signal level=-22 dBm             Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0           Tx excessive retries:0  Invalid misc:186   Missed beacon:0  lo        no wireless extensions.  Kernel IP routing table Destination     Gateway         Genmask         Flags Metric Ref    Use Iface 0.0.0.0         192.168.1.1     0.0.0.0         UG    400    0        0 wlan0 169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0 wlan0 192.168.1.0     0.0.0.0         255.255.255.0   U     0      0        0 wlan0 PING google.com.Dlink (172.26.136.19) 56(84) bytes of data. 64 bytes from 19.136.26.172.in-addr.arpa (172.26.136.19): icmp_seq=1 ttl=249 time=102 ms  --- google.com.Dlink ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 102.547/102.547/102.547/0.000 ms
121475
I have a Linksys E4200 router and a laptop with an Intel Centrino Wireless-N 135 adapter. If I place my laptop right next to the router, the link speed is about 20 Mbps. Is that normal or is there any way I can increase it?  (P.S. Sorry if this question sounds stupid...)
49182
Possible Duplicate:          We run Ubuntu 12.04, 32bit, with the current kernel 3.2.27-generic on an MSI EX700.  I've already added the , without whcih, wireless has been unusable.  Now, it works OK, but speedtest shows:  Windows XP - down 11.68mbps, up 2.07mbps  Ubuntu 12.04 - down 2.06mbps up 2.0mbps   We've disabled ipv6, tried static and dinamic IPs, tried both swcrypto=0 and swcrypto=1 options, none of whcih made any difference.  The problem may be the symptom of high packet loss. For example, here's the output of iwconfig after booting and testing the speeds:  wlan0     IEEE 802.11abg  ESSID:"amu"         Mode:Managed  Frequency:2.462 GHz  Access Point: 00:78:9E:FA:32:C8          Bit Rate=54 Mb/s   Tx-Power=15 dBm          Retry  long limit:7   RTS thr:off   Fragment thr:off       Encryption key:off       Power Management:off       Link Quality=58/70  Signal level=-52 dBm         Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0       Tx excessive retries:11  Invalid misc:3627   Missed beacon:0   I've posted a  before with lots of technical info and outputs.
122312
In our home network, with continuous network IO happening latencies get ridiculous. It's fine with light loads but quickly becomes unusable if I'm, say, rsyncing a large number of small files, --other transfers essentially stop. Pings get through just barely.  Simple topology -- a broadband modem / WIFI router in a single box, with some wireless and some wired clients.   I've tried setting ifconfig wlan0/eth0 txqueuelen 1 on all clients, this seems to help a bit but not by much.  Tips welcome: how should I go about diagnosing and eliminating latency problems? Are there more configuration settings I can set on clients, or maybe a better WIFI routers could help?
73577
I have a gigabit network set up in my house and a few Ubuntu based boxes. Out of complete curiosity I would like to check the speed between the two boxes. I am not having any problems with speed or anything, it really is just the geek in me that is curious. Plus maybe the results will let me know if there is room for improvement, or that I have something configured wrongly.  So how do you properly test the network speed between Ubuntu boxes?
121964
I have a wireless router (D-Link) in room A and a repeater (TP-Link WA750RE) in room B, both having the same SSID. Sometimes, when I go to room B and back into room A, my Nexus 5 (Android version 4.4.3) doesn't switch to the router although it has a stronger signal. It stays connected to the repeater instead.     The "Tplink" and "Dlink" are only aliases. Both actually have the same SSID.  When I switch the Wi-Fi off and on again, it connects to the router. which provides much better speed.  How can I force Android to always switch to the strongest signal? Is there a setting for it, or an app?
24486
I just installed Ubuntu 14.04.3 LTS after installing windows 10 in my new VN7-571G and the wireless is not working. It never had: even during the installation it was not recognized. I run a script to gather the data , which is . lspci -knn | grep Net -A2 output 03:00.0 Network controller [0280]: Qualcomm Atheros Device [168c:003e] (rev 20)         Subsystem: Lite-On Communications Inc Device [11ad:0804]  The OS behaves like it has no wifi card. I do not see wifi settings in network settings I'm not a linux power user, so I do not know what to do to solve the issue. What should I do to make it work?
65139
Is there a way to benchmark how fast my router is connected to my PC, independent of the internet?  I've had slower-than-usual internet-based benchmarks, and I'm having a hard time figuring out if it's because of a bad router-to-PC connection (interference, bad signal, etc.) or if it's indeed because my internet is actually slower.
30001
I have the Realtek rtl8723be driver on my HP-Pavillion Notebook.  While installing Ubuntu 18.04 LTS through plug-n-play option, I tried the following commands before actual installation:  sudo modprobe -r rtl8723be sudo modprobe rtl8723be ant_sel=2   and the wifi was working just fine.  But after installation alongside Windows 10, somehow the wifi stopped working properly, and now only wifi networks very close to the device appear.  I tried installing realtek software from  as mentioned in the README. But still no progress.   I even tried changing ant_sel parameters, then saving them to my /etc/modprobe.d/rtl8723be.conf and then performing a cold boot. But still no progress.  I also tried installing from , but I got errors.  sudo lshw -class network   *-network                         description: Wireless interface        product: RTL8723BE PCIe Wireless Network Adapter        vendor: Realtek Semiconductor Co., Ltd.        physical id: 0        bus info: pci@0000:08:00.0        logical name: wlo1        version: 00        serial: 70:77:81:bf:a7:b9        width: 64 bits        clock: 33MHz        capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless        configuration: broadcast=yes driver=rtl8723be driverversion=4.15.0-36-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11        resources: irq:18 ioport:5000(size=256) memory:c6100000-c6103fff   *-network        description: Ethernet interface        product: RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller        vendor: Realtek Semiconductor Co., Ltd.        physical id: 0        bus info: pci@0000:09:00.0        logical name: eno1        version: 0a        serial: 3c:a8:2a:ba:12:6f        size: 10Mbit/s        capacity: 100Mbit/s        width: 64 bits        clock: 33MHz        capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation        configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8107e-2_0.0.2 02/26/15 latency=0 link=no multicast=yes port=MII speed=10Mbit/s        resources: irq:19 ioport:4000(size=256) memory:c6004000-c6004fff memory:c6000000-c6003fff   *-network        description: Ethernet interface        physical id: 3        logical name: enp0s20u2        serial: ea:f8:17:e8:82:30        capabilities: ethernet physical        configuration: broadcast=yes driver=rndis_host driverversion=22-Aug-2005 firmware=RNDIS device ip=192.168.42.6 link=yes multicast=yes   Can anyone suggest what to do now?
3867
So I just started using linux/ubuntu today and I've been getting problems with my wifi, ive tried the solutions on this page:  When im really close to my router, its fine, i can see wifi signals, but when i go just a few steps back it disappears right away. Im using the latest version of ubuntu 17.10  Any suggestions would be nice! :)
1981
It worked with the pre-installed Ubuntu, but after re-installing Ubuntu dual-boot with Windows 8.1, the WiFi is not working.  Is there a driver for this adapter that will work on Ubuntu 12.04?
49829
Using a wired connection, I get a 38 Mbit/s download speed. When I switch to wireless one (Linksys WRT54GL router with Tomato firmware), the speed drops to 23 Mbit/s even if the distance between the router and the computer is 2 or 3 meters.  Is that a maximum effective bit rate I can expect from an 802.11g connection? Are there any settings I can tweak to to increase the download speed?
109375
I am running Ubuntu 14.04.01 LTS on an Acer V Nitro laptop which has an Intel Dual Band Wireless 7265 controller. The driver version is 3.13.0-45-generic with firmware 22.24.8.0. The connection is stable for 30-40 minutes and after, it disconnects. Are necessary several reconnect attempts, sometime a restart in order to reconnect to the WiFi network.   Did anyone face this issue with this controller? What do you recommend to diagnose the issue?
4577
My Wi-Fi connection seems to be very weak and the range is very low. It drops by two bars if I just move to the next room and by two if just step outside.  The speed is also not fast as compared to what I get from the router on my desktop .  My laptop is a HP laptop with RTL8723de module. Can anyone help me in bumping up my Wi-Fi speed?  Result of lspci -nnk | grep 0280 -A3:  03:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:d723] Subsystem: Hewlett-Packard Company Device [103c:8319] Kernel driver in use: rtl8723de Kernel modules: rtl8723de
118351
I booted Ubuntu 17.04 live on my Fujitsu Amilo Li3710 laptop and I was surprised to see that I couldn't connect to wifi. I tried to connect to my router and my phone as a hotspot but neither work.  I can see wifi networks and when I try to connect it asks for the password, seemingly tries to connect but then it doesn't connect. It gives no visible feedback after failed trials.  Disabling mac filtering and removing the wifi password makes no difference. I tried Ubuntu, Ubuntu Gnome, Ubuintu MATE and Lubuntu, it's the same everywhere.  I have Ubuntu 16.10 and Windows 10 installed on the laptop, they have no problem connecting.  Is there anything I can do? Or is support for my hardware over in the kernel?
46726
On windows downloading a 100 MB file takes less than a minute while on Linux it is taking me 1 hour.  Why is there such a big difference and what do I do to speed it up?   I am using a wireless network adapter made by belkin and since it is working fine on windows I suspect its some driver issue or something.   I will edit this post with outputs of a command if desired!  --- Output of lsusb ---  Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 003: ID 046d:0990 Logitech, Inc. QuickCam Pro 9000 Bus 003 Device 002: ID 04d9:fa50 Holtek Semiconductor, Inc.  Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 050d:2103 Belkin Components F7D2102 802.11n N300 Micro Wireless Adapter v3000 [Realtek RTL8192CU] Bus 001 Device 002: ID 413c:2003 Dell Computer Corp. Keyboard Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub   --- Output of lsmod | grep rtl ---  rtl8xxxu              122880  0 rtl8192cu              65536  0 rtl_usb                20480  1 rtl8192cu rtl8192c_common        53248  1 rtl8192cu rtlwifi                77824  3 rtl_usb,rtl8192c_common,rtl8192cu mac80211              761856  4 rtl_usb,rtlwifi,rtl8192cu,rtl8xxxu cfg80211              581632  2 mac80211,rtlwifi
117714
I have a 951G-2HnD as a router. All connections are via ethernet cables. I observe the following:   When I connect to the ISP via router, speed is about 270 Mbit/s, while ISP claims my plan has 500 Mbit/s speed limit. When I connect cable from ISP directly to ethernet port on my PC, I indeed get about 500 Mbit/s download speed. When I download files from another PC connected to the same router, the speed is about 900 Mbit/s which is correct for gigabit LAN.   Now because of 3, I think that the problem is not in router processing power. I suppose something is wrong with NAT processing. How do I improve speed so NAT connection is as fast as direct one? Or at least how do I debug the problem?  Just in case, I disabled all NAT rules except the main one:  /ip firewall nat chain=srcnat action=masquerade out-interface=ether1-gateway   This did not improve the speed.