Ubuntu Networking :: Wi-Fi LED Flickers And Has Slow Connection
Oct 8, 2010
It has a button next to the power to show the wireless status, on or off. If I turn the laptop on with the wireless active, it keeps flickering between on and off states, and gives me a really slow connection.It happened in 10.04 if I booted with the wireless activated, but could be fixed by resetting the wireless. Now in 10.10, it happens constantly, and I just wont stop.My laptop is a CompaQ Altec Lansing running 64 bit.
I have installed XUbuntu 10.04 but cannot connect to WiFi. Here is what I know so far: Hardware and Software configuration: Compaq Presario 2100US XUbuntu 10.04 (installed Dec. 2010 from Live CD dated Oct. 2010) Kernel 2.6.32-21-generic Gnome 2.30 RAM Memory: 938.7 MiB Processor: Celeron Disk Space Avail 23.2 GiB Wireless Card: MSI Wireless 11G CardBus CB54G2 *MSI Driver rt2500pci located in system (see below) No wifi 'on' 'off' hardware switch on machine
Prior to the install of Xunbuntu 10.04 (Lucid Lynx) the machine carried MSXP. The wireless card came with the machine. The machine used a cable connection by previous owner. Connection's been working fine in Ubuntu Jaunty Jackelope and Puppy Linux. Wireless card appears to be functioning. The system scans for the network, shows that connection is established by both icon in tray and message saying that a connection is made. The card shows both green lights active. The light that indicates a connection is on and randomly flickers. Tested Firefox for connection. Firefox is not receiving anything from the system. I have got the network manager functioning enough to say that I have a 'connection' but still cannot connect to server.
Network Connections wireless: linksys - mode ad hoc - MTU auto wireless: security - none (I borrow from a neighbor's wifi) IPv4: auto(DHCP) IPv6: Ignore *Driver rt2500pci located in /sys/module/rt2500pci/drivers/ (There is a 'config' file in this directory)
Help menu in 10.04 is listed as help menu for 9.04 so don't know if applicable to 10.04 debugging. When 'troubleshooting' wireless connections, I did a *sudo lshw -C network* command on terminal. The results *do not* show 'Claimed, Unclaimed, Enabled or Disabled as help menu indicates. The line that would show that information (*-network) doesn't have 'Claimed, Unclaimed, Enabled or Disabled'. I can send image of this query. I have tried two other wifi cards with similar results, no connection.
I'm running Ubuntu Karmic on my desktop machine which is connected to my wireless router (via LAN cable).
I have two laptops on the LAN as well. One is my wife's Windows 7 laptop and the other is my Ubuntu Karmic laptop.
They both connect wirelessly to the LAN and all three computers have static IP addresses assigned.
So here's the issue. The desktop serves the laptops over the LAN with Samba file sharing, SSH, VNC and DAAP.
From the Windows 7 laptop, the connection over the LAN is fine. I generally use it to connect to the Samba shares and occasionally use it for VNCing to my Desktop's....desktop. It is fast and responsive.
From the Ubuntu laptop though, everything seems very slow. Connecting to the samba shares results in a wait of at least 30-60 seconds, even if they have only recently been accessed. Once it has connected (i.e. once the share opens up and you can see files) actually opening the files themselves is delayed too, but not to the same extent.
Also, connecting to the desktop via VNC is intolerably slow, with mouse movements being so delayed that it is almost impossible to click on anything.
SSH takes a long time to connect too (up to 30 secs) but obviously once connected it is fine. In a similar vain, FreeNX connection takes a long time to connect but once the desktop has loaded it is fine too.
I can use FreeNX instead of VNC but actually like using both for different functions. I understand VNC is slower than FreeNX but over a 100Mbps LAN connection I wouldn't expect it to be slow at all.
This laptop used to be a Windows Vista/Win7 laptop prior to being replaced with Ubuntu and it was able to connect to the server with no speed problems.
I've just installed the ubuntu 9.10. I have one problem with it. I have a home net in configuration: Windows XP on a cable, Ubuntu on a cable and Windows on wifi. When I'm surfing on the net on Ubuntu, Wifi isn't work how it should. It's very slow and I don't know what to do with it. Windows XP on a cable is OK, it works good. What happen and how can I repair it?
Since I've updated from 9.10 to 10.04, I'm having some difficulties to use the internet. Even though I can connect to my home wireless network, the connection is really slow. I've got a Dell Inspiron 1545, and here comes the configuration:
Lately I have been using my window's partition due to the fact that 10.04 drops my wireless signal every 5-10 minutes, but today I downloaded the new updates and that seems to have fix the issue with the dropping of the wireless connection. Now the only problem is the internet is so slow when trying to go to webpages it times out. I have opened up firefox gone to about:config and changed the necessary lines, but still dreadfully slow.
I am running Kubuntu 10.04 (32-bit) on a Sony VAIO VPCCW23FX, when I connected to my router through Wireless the connection is too slow and random, 3 kB - 50 kB. But when connect to the router through Ethernet cable I get the normal speed 265 kB. I read many posts but can't find solution, and already updated all packages. the Wireless card is:
Code: 02:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01) the output of iwconfig:
Code: wlan0 IEEE 802.11bgn ESSID:"zzzzplw9" Mode:Managed Frequency:2.437 GHz Access Point: 00:25:68:9B:0D:FE Bit Rate=1 Mb/s Tx-Power=20 dBm Retry long limit:7 RTS thr:off Fragment thr:off
I have a linux server that has seemingly random network slow downs. This server is mainly my dvr. I'm starting to think it's a hardware problem, but that's just a gut feeling. I don't really know how to determine if it isn't.
Slow summary:SSH, HTTP, VNC incoming traffic are all affected Outgoing traffic seems ok. I haven't tested this as much. Rebooting mostly helps. Stopping/starting network doesn't help Load average is below 1.0 Updated Kernel with no change
I use Slackware 12.1 and I have a big problem that I can't solve by myself. I'm connecting to a LAN where there are almost 20 PC connected, all with static IP.
my ip: 192.168.1.205 netmask: 255.255.255.0 gateway: 192.168.1.1 DNS server: 220.127.116.11, 18.104.22.168
I configured manually it but it doesn't works well. I set up the DHCP server on Windows 2003 so I tried to configure it with dhcp too. It gives addresses from 192.168.1.200 to 192.168.1.240 there are no PCs connected with DHCP at the moment, so my IP is only mine.
My problem is the following: bash-3.1# ifconfig eth0 Link encap:Ethernet HWaddr 00:1e:68:3d:1b:ad inet addr:192.168.1.201 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::21e:68ff:fe3d:1bad/64 Scope:Link Up Broadcast Running Multicast MTU:1500 Metric:1 RX packets:77 errors:0 dropped:0 overruns:0 frame:0 TX packets:44 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:7041 (6.8 KiB) TX bytes:6282 (6.1 KiB) Interrupt:17 Base address:0xc000
bash-3.1# route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface localnet * 255.255.255.0 U 0 0 0 eth0 loopback * 255.0.0.0 U 0 0 0 lo default 192.168.1.1 0.0.0.0 UG 1 0 0 eth0
bash-3.1# ping www.google.es PING www.l.google.com (22.214.171.124) 56(84) bytes of data. 64 bytes from 126.96.36.199: icmp_seq=1 ttl=243 time=78.7 ms 64 bytes from 188.8.131.52: icmp_seq=2 ttl=243 time=84.2 ms 64 bytes from 184.108.40.206: icmp_seq=3 ttl=243 time=75.1 ms 64 bytes from 220.127.116.11: icmp_seq=4 ttl=243 time=82.1 ms 64 bytes from 18.104.22.168: icmp_seq=5 ttl=243 time=82.8 ms 64 bytes from 22.214.171.124: icmp_seq=6 ttl=243 time=79.4 ms 64 bytes from 126.96.36.199: icmp_seq=7 ttl=243 time=82.3 ms 64 bytes from 188.8.131.52: icmp_seq=8 ttl=243 time=75.2 ms 64 bytes from 184.108.40.206: icmp_seq=9 ttl=243 time=80.7 ms 64 bytes from 220.127.116.11: icmp_seq=10 ttl=243 time=84.7 ms 64 bytes from 18.104.22.168: icmp_seq=11 ttl=243 time=75.0 ms 64 bytes from 22.214.171.124: icmp_seq=12 ttl=243 time=82.2 ms 64 bytes from 126.96.36.199: icmp_seq=13 ttl=243 time=85.1 ms 64 bytes from 188.8.131.52: icmp_seq=14 ttl=243 time=80.9 ms 64 bytes from 184.108.40.206: icmp_seq=15 ttl=243 time=87.7 ms 64 bytes from 220.127.116.11: icmp_seq=16 ttl=243 time=87.6 ms 64 bytes from 18.104.22.168: icmp_seq=17 ttl=243 time=83.2 ms
It takes a lot of time connecting to a internet web site! It's really strange because downloading a file the transferring rate is good, it takes some time starting, but it works normally. I wait almost 7 seconds after seeing a web site. All the others PC's (windows xp) can connect perfectly to network using static and DHCP. Trying with another wire in another room I've got the same result. My /etc/resolve.conf is configured with the IPs specified upper in this page.
I set up my linux router as a simple NAT router. I use CentOS 5.4. When I set up ISP proxy IP in the browser of client PC, Internet access is fast. When I remove ISP proxy IP from the browser, Internet access is slow.
ISP use transparent caching but I can use manual caching as well. Clients on my network with transparent caching get slow internet access and using ISP proxy get fast internet access.
ISP announce that we can use transparent caching or manual caching.
So, I set up my linux router with squid. I set up cache_peer TAG point to ISP's proxy IP. But the problem is the same. Using my squid proxy is slow and using ISP proxy directly is fast. All other network settings are correct.
How can I improve my internet connection using transparent caching. I don't want to set up proxy IP address on all clients.
I recently installed ubuntu on my laptop and the wifi is horrible. The connection was very slow and dropped every 5 minutes or so. I have tried enabling the proprietary madwifi drivers - however then it wouldn't connect at all.
I am currently staying on a university campus in Taiwan. Internet on Ubuntu Lucid 64bit here is often painfully slow, except for connections to Taiwanese websites. I dual boot with Windows 7, and there is no problem there. For instance, I downloaded the same piece of software (Spideroak) on both Win and Ubuntu, with Ubuntu I had to try repeatedly as the download would not complete, and in the end it took several hours to download. On W7, it took 10 minutes. What is Windows and Ubuntu doing differently?
I tried disabling ipv6 for this session by running sudo sysctl -w net.ipv6.conf.all.disable_ipv6=1, as a number of posts mention improving connection speed that way, but no effect.
I know that websites from Taiwan are working well, because I am getting my Ubuntu updates from a Taiwanese mirror: updates are fast, except for packages in the 'partner' repos (presumably not loaded from the mirror) which take hours to load, if at all. I don't want to depend on Windows for large downloads... (I don't want to depend on Windows for anything).
I have Ubuntu running on my HTPC and for the longest time all this was working fine. Now all of the sudden my Internet connection is all sorts of slow. Chrome browser, transmission bt, apt-get, all have the same speed issue. I tried disabling IPv6, changing my DNS and installing all the latest updates. Nothing works.
I am running the newest version of Ubuntu on my laptop. The connection randomly seems to massively slow down. After a speed test is run it registers at .05 download and Ubuntu crashes before it gets to upload. I reboot from the crash and it runs fine for a while, then it suddenly does the same thing. The connection is running fine on my Windows 7 desktop, I don't know what is going on. In transmission the upload speeds are running at ~100kbps though. If I try downloading a mere 400kb .torrent file it stops half way through, usually at 200-300kb done, downloading at 1.2kbps the entire time. This is getting very frustrating and I really don't want to go back to Windows.
I bought a new Laptop 2 week ago. It works well, but internet connection ist very slow. I use cable internet speed 25Mbit/s, normal with my old Laptop (Window xp) I can DL with speeds ca.1 Mbit/s but with this new ca. 15 kbit/s (same file). too much different!!! If anyone know, how to troubleshoot this problem, please tell me. And i get a advice that i should crate a new connection using the "workgroup" model instead. I've tried to do but failed. Who knows "how to" please explain it for me.
I've installed recently Ubuntu 11.04 and the first problem that I had was with my wireless lan card Wl-138g V2. The card was not enabled by the system, however after following one of Ubuntu's forum thread I managed to solve it, but... and there is always a but the internet speed is very low.When I had windows installed I faced the same problem and it was solved with an update in the driver, does any one experienced the same in Ubunutu? How did you solve it?
I just got a wireless card and I've been having connection issues under Linux. The chipset I have is a Ralink 2860 (the card itself is an Asus PCE-N13) and supports 802.11n speeds up to 300 mbps. I am connecting to a DLink DIR-655 router, which also supports 802.11n at 300 mbps. I get full bars when connecting to my router, and my router's connection information shows my computer connected as 802.11n with the signal at around 80%, but the data rate is usually around 5.5 mbps. (I've rarely seen it go up to 18 mbps) I can confirm this woefully slow speed with anything I try to do over the network. Additionally, my wireless connection will sometime be disconnected and network manager will often fail to connect. When it fails to connect, my router lists my comptuer with the correct IP address, so I know it is successfully connecting to the router and the router is accepting the connection, but network manager seems to not recognize this.
I am running Debian Squeeze (testing), but I have a custom kernel, which is 2.6.35 and is using Debian's kernel configuration. I have the newest firmware from Ralink's website, and I also tried the newest drivers, which made no difference. (I have since removed those drivers, since I'd prefer to use the drivers supplied with the kernel if possible, but I can install them again if necessary) I put this card in my main computer and booted under Windows, and it was able to connect with 100% signal (it's right next to the router) and at 300 mbps. I also tried it under Debian on my main computer (with the stock 2.6.33 kernel), but it only connected as 802.11g, and even at 100% signal it was only connected at 36 mbps. For comparison, my laptop with an 802.11g card and running Mac OS X can achieve the full 54 mbps at 84%.
I am have setup a temporary ssh server to reverse ssh to remote clients. When a client has an issue I have them reverse ssh to my server and then from my laptop or workststation connect to there workstation. The problem that I am having is when I connect to them from behind my firewall from my laptop the connection is really slow but when I connect to them from the firewall it is fast. I am using Firestarter which is simply a GUI for iptables. I am trying to figure out what iptables rule is causing the connection to slow down behind the firewall.
My internet connection is pretty fast, but the initial connection to websites take about 4-10 seconds. Sometimes I even get a "connection timed out" error. Once and if the connection is made, the website loads up pretty quickly. I have no problems with internet speed otherwise as I get pretty good speeds for downloads and torrents.
Chrome shows "sending request" and Firefox shows "looking up" during this period of apparent inactivity.
It is not a DNS problem as I have switched DNS from my default to the OpenDNS servers. Besides, everything works fine on Windows with either DNS setup.
I have also tried switching off ipv6 by adding "alias net-pf-10 off" in modprobe.conf. I even switched off ipv6 in Firefox in about:config to no avail.
Oddly, wget seems to work fast and normally. And nslookup returns results almost instantly.
I just installed karmic from a live cd. When on the live cd, my USB adapter worked perfectly. But once my system was up and running, my device connection was really (and I mean reaaaaaaally) slow.As I mentioned, it's an XMedia IT-WL542.here's the output to lsusb
Code: Bus 002 Device 002: ID 07b8:6001 D-Link Corp. WL54 when doing iwconfig I get
I want to connect to a 300mbit network (802.11n). With Windows (the same Computer) I am able to connect with full speed, but with Ubuntu Maverick (64bit), and a lot of other distros I tested, I am only able to connect with 54mbit. The builtin wireless network card is an Intel Corporation Centrino Ultimate-N 6300 (rev 35). Is this a driver Problem? I updated to kernel version 2.6.37-rc2 via ppa sources, but with no luck. I tried to extract the windows driver and started it with ndiswrapper, but i properbly made somethng wrong, because the card did not show up, though ndiswrapper said adapter available... oO?
I have a problem with my wireless where when running the laptop from the battery the connection is very slow. When the laptop is connected to the power supply everything is fine, but the moment it's disconnected and run on the battery the speed drops when browsing the Internet or accessing files on other computers on my network.
The laptop is a Samsung SF310 Wireless chipset is BCM4313
In attempt to fix this I installed the latest drivers from the Broadcom site using this guide. When I enabled these drivers everything worked well. I did speed test and got the same speeds I get when connected via Ethernet:
Ping 51ms DL 4.31 UL 0.65
So I set the drivers to load at boot using this forum post as a guide as the steps in the Broadcom guide didn't work and rebooted the laptop on battery power. The wireless connected fine, but the slow speed problem had returned. Running a speed test got the following results
Ping 235 DL 0.54 UL 0.30
So I ran iwconfig when running from battery and then from power supply. Code: xxxx@xxxx ~ $ iwconfig lo no wireless extensions. eth0 no wireless extensions. eth1 IEEE 802.11 Access Point: Not-Associated Link Quality:5 Signal level:215 Noise level:160 Rx invalid nwid:0 invalid crypt:0 invalid misc:0 As can be seen the signal quality is 5 and signal level 215
Code: xxxx@xxxx ~ $ iwconfig lo no wireless extensions. eth0 no wireless extensions. eth1 IEEE 802.11 Access Point: Not-Associated Link Quality:5 Signal level:214 Noise level:164 Rx invalid nwid:0 invalid crypt:0 invalid misc:0
And when connected via the power supply the signal level is 5 and signal level 214. There may be some kind of power saving issue, although there are no relevant setting in the BIOS and I can't see anything in the various wireless control pannels. I have other wireless drivers and there are no problem with those.
Since upgrading to Ubuntu 11.04 my wireless connection has been extremely slow. The same happened with 10.10. Although that was quite different. Back then everything within my network moved slowly, but now it doesn't affect my web browser. It seems to have only slowed the application centre and update manager. I am still waiting for the flash plugin to download and install for testing ....., but I am torrenting Ubuntu 11.04 right now and have actually hit the limit of my bandwidth (1.1 MB/s) whereas the speed in the software centre and update manager was in the region of 45 kb/s.
I'm not sure if this is because I have installed extra drivers found here after I did some research.
Although my web surfing is fast and stable, I would like to get my updates and applications downloading properly. Does anyone know what I can do?
From my 2-hour googling spree I know you may want the results from the command "lspci"
Code: root@Felicia:/home/silkworm# lspci 00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07) 00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
I've just installed Ubuntu 9.10 in my laptop. Everything works fine except for my wireless. It works, but much, very much slower the through RJ45, which is perfectly ok. When using wireless i can't even connect to any online messaging service and I need to reload pages oftenly. My security setting is WEP 128 bits ASCII and since I'm trying to follow the format suggested on the thread "HOWTO post a Wireless issue" I'll try to provide the infos like requested on it. Laptop brand and model (I'm from Brasil, so it's a brasilian model)
i have just installed 10.10 under wubi, first time trying to use this network card under ubuntu. works fine on XP where it connects with good signal strength to a zyxel p-600 b/g router (my 3 other machines also connect fine to this router)
i am using WPA2, it takes 30secs to 1min to connect in the first place, then runs slowly and with intermittent disconnects, reports good signal strength in network manager.
i have been fortunate enough to have 3 machines that run ubuntu flawlessly out of the box..
This is a recent problem, and I can't pinpoint any change/upgrade that would cause this. Rsync transfer from Client to Server: sent 11756196 bytes received 1032741 bytes 138258.78 bytes/sec total size is 144333466390 speedup is 11285.81 Pinging back and forth from each machine is fine. No Ifconfig errors Client, but Server has RX packet errors.
I have a strange problem that I cannot diagnose -- slow wifi. About two or three weeks ago, I noticed that my wifi began to slow down dramatically. The problem is the same on my ubuntu laptop and my ipad. But when I connect directly to the router with a network cable, my connection is fine. So it is definitely a problem with the wifi signal itself.
What I have done so far: (1) I checked all of the MAC addresses connected to my wifi. I identified my tivo box, laptop, and ipad. Nothing else.
(2) I used [I]wifi analyzer[I] on my android phone and selected an unused wifi channel (channel 8).
(3) I changed the username/password on my wifi signal. I also changed the password for my router's admin privileges.
(4) I restarted my router and computer. None of this helped.
A couple of days ago my internet connections suddenly became very slow/intermittant.
I thought the problem was at my DSL provider but after more checking the problem seems to be in Ubuntu/Linux somewhere.
Reason: I can dual boot with windows 7 and have no ptoblem at all. Also I tried a Ubuntu laptop on the same router ethernet port and it also works fine. So its not my hardware or my provider, and its not a general Ubuntu problem either.
There are no error messages in any of the /var/log files and ifconfig looks normal.
It seems to be a DNS problem as it's the initial connection to a host which often times out. If I get a connection, I can e.g. stream an radio station fine.
If I try to e.g. traceroute any host it times out (no reply).
Ubuntu 10.10 is totally up to date as of today.
I'm stuck! How can I troubleshoot this to find the cause?