Ubuntu Networking :: Wifi Is Fast Then Slow Then Fast Then Slow Connect Disconnect ?

May 7, 2010

My wireless seems to be fast for a good 30secs then bang takes good while to load the next page almost as if it's disconnecting and then reconnecting/scanning reconnecting. Why cant it stay connected. I have WAP PSK security here is my network setting please let me know if I should change any of them:(side not is there a way to fix this problem occuring so frequently it says on the wiki that it should only occur once in a whilce https:[url].....

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Ubuntu Networking :: Slow Wifi - But Fast Connection On Network Cable

Jan 22, 2011

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.

I am using a Netgear WGR614 wireless router.

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Ubuntu Networking :: Slow Browsing - Fast Download ?

Feb 12, 2010

I'm using wlan and I'm behind a NAT firewall. Downloading with BitTorrent can reach speeds of 1,5MB/s, but browsing is incredibly slow. Chromium/Firefox seems to hang forever on "connecting.." or "waiting for". Sometimes pressing the reload button will speed it up. I have two Ubuntu boxes and they are the same way.

I don't get it, if downloading is so fast, how can browsing be so slow. Yes I have disabled ipv6 in grub and in Firefox, don't know how to do it in Chromium. Have 64-bit Ubuntu. Cnet wlan card using rt61pci module.

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Ubuntu Networking :: Torrents Very Slow While In UTorrent Under Windows 7 Very Fast

Jul 16, 2011

I'm using Vuze clients and torrents are very slow while in uTorrent under Windows 7 they're very fast. How can I fix it?

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Ubuntu Networking :: Connect To Public Wifi In Coffee Shops And Fast Food Restaurants?

Jun 5, 2011

I know this has been covered before, and I have searched for two hours with no success. Problem: When trying to connect to public wifi in coffee shops and fast food restaurants, I can connect to the networks fine, but Firefox will not display the page that requires input of a code or terms agreement.

I remember months ago reading something about using the ifup command somehow as a work around, but there must be an easier way.

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Ubuntu :: Internet Connection Very Slow On 9.10 But Fast In XP

Mar 23, 2010

Like the title, that is my problem. I'm using cable modem with 3mbps. It is Linksys Docsis, wired networking. When I download a file using ubuntu 9.10, my latency time (ping time) sky rocketed to 2000ms average, while in XP none of this happens; I tried to download the same file from the same website. In ubuntu 9.10 my network setup will be, well... nothing. I'm using DHCP automatic detection. Same thing in XP.

I don't want to go back and forward using XP for the internet. Funny thing though, none of this happens while I first started ubuntu 9.10. I didn't configure anything with networking. It is the way it is from the beginning. The only thing I tried was ubuntuone. But that like months ago, and the problem I have with slow internet connection only appear this March.

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Debian :: Fast Bandwidth And CPU But SLOW X11 Forwarding

Sep 26, 2010

I have a fast server running Debian 5 (I tried to upgrade and everything broke.

So I'll stay with Lenny):
Core 2 Duo
4Gb RAM
RAID 0
100mbit

When I use the -X command and try and run applications to my desktop, it is VERY slow. Firefox takes 20 seconds+ just for a right-click menu to appear. It is completely unusable because of this speed. And this is after a clean install of Debian 5.

I've tried on multiple clients (Windows and OS X) and it is always slow! Even though both computers and connections are fast. My home connection is 100mbit too....

So the problem is not bandwidth or resources, the problem must be with the server/software? Any ideas why tunneling X11 applications are so slow? Is there an alternative X11 software I could use on the server?

1 thread in FTP to this server gives 10MB/s (100mbit). So X11 should be fast? And btw, I'm tunneling through SSH.

Can figure out why it is so slow?

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Ubuntu Multimedia :: Video Playback Slow In 10.04 But Fast In 9.04?

May 14, 2010

I have two Ubuntus installed. A 10.04 and a 9.04. In 9.04 if I watch a video in Firefox, it works very smoothly and nicely. Using the "top" command, totem-plugin-vi is using the most cpu time at about 16%, and xorg is using about 5%. But in 10.04, totem is using 72% and xorg is using 26%, and it looks really choppy. I think watching DVDs is the same way. I checked "Hardware Drivers" in the System->Administration menu (in 10.04) and it said "No proprietary drivers are in use on this system." I'm guessing maybe I'm using different video drivers on each system, but I don't even know how to check. and here is an excerpt from lspci:

01:00.0 VGA compatible controller: ATI Technologies Inc Radeon RV100 QY [Radeon 7000/VE]

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Ubuntu :: Fast Copy Stops Slow Other Processes?

Aug 29, 2010

The local files copy speed from one disk to another is satisfyingly 60+MB/s, but this cause problem to other application, windows gray out, firefox freez, basically i have to wait for the copy to end to return to the computer.

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Server :: Slow Authentication In Ftp Login / Make It Fast?

Apr 13, 2010

When I'm trying to login to the ftp server with appropriate username and password its taking almost 10-15 seconds to authenticate making the login process slow, even when I'm uploading files its again hanging for 10-15 seconds before completing the job successfully.
Its not like its happening every time, but 7 times out of 10.
Any idea how can make the authentication fast?

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Ubuntu :: Samba Slow Writes To Server But Fast Reads

Jul 1, 2010

I have a fileserver running 10.04 server 64bit and samba. I connect it to my desktop which is 10.04 desktop 64bit.I have the server mounted on my desktop in fstab as://10.0.0.2/share /media/share cifs guest, uid= 1000.Up until 30 June 2010 it was all fine. Now when I write the server it is very slow e.g. 2Mbps though when I read I get >100Mbps so I think my network is still ok. If i use nautilus smb://10.0.0.2/share I can write at >100Mbps and also read at >100Mbps...So any ideas why the write speed via the fstab mount samba has started to go really slowly in the last couple of days?

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Networking :: Slow Outbound - Fast Outbound Cross Country Connection

Jun 2, 2011

I'm having an issue where a server in CA (1000/full) and in VA (100/full) have very lopsided data transfer.

CA -> VA with iperf shows ~20Mbps
VA -> CA with iperf shows ~93Mbps

If we change the CA server to 100/FULL, transfer speed is 93Mbps both ways.

Some tuning was done to TCP window scaling parameters, but it won't correct the issue, just improve the CA -> VA numbers to what is listed above. I will say, turning TCP window scaling OFF will lower the transfer speed both ways to < 20Mbps.

The only clue I have when looking at wireshark dumps is that the window scale going OUT would never go past 10240 (scale is 8, so 2^8 x 40bytes). In the opposite direction, the window size will go above 3MB (scaled).

It is not a bandwidth problem as iperf with UDP shows 93Mbps both ways. Local transfers (CA 1000/full to CA 100/full) show full speed both ways, so I feel it is strictly related to TCP window scaling.

RedHat 5 64-bit on both sides. Any ideas why it won't scale above 10240?

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OpenSUSE Network :: Slow Internet Browsing / Make It Fast?

Oct 6, 2010

I'm running 11.2 on a Dell Latitude D630. Everything has been great other than issues with Suspend and hibernate not working correctly. However after about a month of use browsing the web has really slowed down bad. It doesn't seem to matter if it's in Firefox or Chrome either. I am using a wireless connection that is getting the signal at 85-95%. Even though I still tried using a direct cat-5 connection to the router and it was still slow as well. I have the fastest broadband connection my cable offers and my windows boxes on the same network are still flying.

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Networking :: Wireless Network Connection - Router - Won't Connect Fast - Automatic

May 26, 2009

My computer takes a while to connect to my Linksys N router.

It used to connect in a snap of your finger automatically.

Now it does not.

Yes I have tried manual configuration, and double checking the password, ssid, protocols, and security type.

WPA2 personal is the security type.

There are maybe 4 different ways I know how to connect. The most annoying thing is when this box pops up saying to type in a password for the network connection.. and keeps popping up even when everything is right.

All I need is a reliable, easy, and automatic program to connect me to the internet, maybe even before I log into my system.

Linux Ubuntu 8.04 LTS Desktop Edition is my system. Brilliant system.

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Ubuntu Networking :: Natty Netman Connect/disconnect Wifi Every Minute?

Jun 26, 2011

I was happily running Ubuntu 9 but since I cannot get security updates for it anymore I had to upgrade to 11. Now I'm on Natty, and the "NetworkManager" apparently cannot deal with my latop's wifi card which worked fine for years under ubuntu 9. The laptop is a Dell latitude D610 and the card is an intel ipw2200 minipci. I used to just run /etc/init.d/network restart after I logged in to get the wireless to come up, if it failed by itself, but now I get a message that that's deprecated. Nice.

I'm running WPA. If I don't create a wireless configuration in the network manager, wireless never connects. Ever. If I do create a configuration, the connection comes up for about a minute, and then drops. And then comes up. And then drops. And then comes up. And then drops. It's insane. Also, I get a series of "Auto <ssid>" entries in the NM settings area.I dug around in /var/log, but all of the wpa_supplicant logs are of size 0, except the gzipped backups, which are all size 20. Go gzip. The syslog has some messages in it about 4-way handshake failed, and association taking too long, but since the laptop has no network connection I don't have an easy way to post those here.I just want the wireless to come up, by itself, when I turn on the laptop like it used to. I don't want to have to deal with retyping the (long and complicated) WPA password every time I wake up the machine, nor deal with the "keychain." How do I get there?

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Ubuntu Networking :: Very Slow WiFi Using Broadcom Wifi Card?

May 12, 2011

get WIFI working on my Dell D600 with Ubuntu 11.04 freshly installed. I some limited sucched following the this post t=1621331 this got the card working but it was very very slow over 70% packet loss to the WIFIrouter. 1. Machine details Dell Latitude D6002 Wireless Broadband and Chip setlspci -nn | grep Broadcom - 02:03.0 Network controller [0280]: Broadcom Corporation BCM4309 802.11a/b/g [14e4:4324] (rev 02)3. Check interfaces

eth0 Link encap:Ethernet HWaddr 00:0b:db:e0:1c:5b
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0

[code]...

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Server :: Apache Server Extreme Slow, While Samba Server Is Extreme Fast?

Jan 12, 2010

I have changed my home network a bit, and everything works extremely fast, except for my apache server, which seems to serve webpages so slowly, it is abnormal. Even simple directroy pages are served in around 5 sec, and this is not a joke! It used to work pretty fast. What I have changed is that i replaced a hub with a switch, and that I linked my personal PC with my server together through a hub. I also installed Gnome desktop on the webserver machine. My network now looks like follows:

Internet
/
||

[code]....

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OpenSUSE Install :: Respawning Too Fast - Error: "Respawning Too Fast - Disabled For 5 Min" Freeze

Dec 12, 2009

Installing 11.2 from KDE LiveCD on an IBM ThinkCenter with 3.2Gb CPU and 1Gb RAM. Ubuntu 9.04 on first two partitions. I go through the configuration, click to 'install': Install display bars remain blank. After 2-3 minutes, black screen with scroll of attempted installation pieces and the error message: "Respawning too fast. Disabled for 5 min." Freeze.

Other posts mention problem with init. But this is happening with the install so not able to address that. No apparent md5chksum for LiveCDs. No mention of this problem in installation help guide. Does anyone know how to deal with this? If you need more info, I will provide. Though it seems this is not an unusual problem when booting an installed system, there's no mention of it happening during installation.

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Ubuntu Installation :: 11.04 - When Connect Internet Via Wifi - Input Password - Make My Computer Slow To Halt

Jun 28, 2011

My Netbook is ASUS EeePc HA900, I already use Ubuntu 10.04 is ok, nothing problems, then I upgrade to Ubuntu 10.10, it is still Ok. But when I upgrade to ubuntu 11.04, it have problems with Wifi, when I connect Internet via Wifi, just input the Password, it make my computer slow to halt, and have to turn the power off to shutdown the computer.

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Ubuntu Networking :: 9.10 - WiFi Connection Very Slow

Jan 11, 2010

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?

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Ubuntu Networking :: Very Slow Wifi In 11.04 RT73usb?

Apr 28, 2011

i installed Ubuntu 11.04 Amd64 today (and have tried ubuntu 10.10 in the past and had the exact same issue.).I had this problem with the wifi, as it recognizes the adaptor (tplink321g) but it cant connect to the right speed. This is my only problem with ubuntu now.If anybody else is having the same issue, and most of all if anybody has the solution to it.

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Ubuntu Networking :: Slow WiFi Internet Speeds

May 12, 2010

I'm on Ubuntu 10.04 and I'm having problems with internet speeds on wifi. I have tried the two available networks on my university campus and both of them are very slow with 10.04. I'm not having problems with Windows 7 running on these networks. Although, the wired network works perfectly fine, with normal speeds. I've looked around for help but I could not find anything specific to this problem.

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Ubuntu Networking :: Connected With Wifi - Web Navigation Is Slow

Jan 9, 2011

The web navigation is very very slowly. The load of web page is slowly. I don't know what i do. I connect with wifi. the download with software same emule is good. I use firefox but i tried also other browser.

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Ubuntu Networking :: Wifi Slow On Battery Power?

Jan 29, 2011

just installed Ubuntu on my Macbook Pro and im loving it right now, but whenever I disconnect from the power source and run from battery, my wifi Internet slows down to a crawl. As soon as i plug the power back in, the internet is back to normal.

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Ubuntu Networking :: Jaunty Wifi Very Slow - 327W Router

Jun 14, 2010

I was introduced to Ubuntu about a year ago and recently decided to come back to using the OS. I now dual boot it with Windows XP Home. My former setup was with Wubi but now I have it installed on an actual partition. (The Wubi install, for whatever reason, had little internet problems.) I use wireless internet, and though my network card was recognized out of the box and can connect to my network, the Internet is very slow. It takes almost a minute to look up Google. Also, Firefox will often report that it cannot find the server for whatever website I try to look up, after trying to connect to it/look it up. I also cannot access the web configuration page for my router. (192.168.1.1). The network app reports that I often have a signal strength of 40% or lower. The following is my hardware/internet:

Ubuntu 9.04 Jaunty
TrendNet TEW-424UB adapter (54mbps)
Westell VersaLink 327W router
ISP: CenturyTel/CenturyLink High speed internet (512kbps)

I am the only Linux computer on my network. (There is no encryption on my network. I know there should be. but my parents are not very computer literate and they are the ones who have access to the network. It is easier just to go without.)

I have tried disabling ipv6, setting custom DNS server names under ipv4, and setting the wlan rate (or something similar) to 1492. Nothing works. This does not seem to be a network problem because my internet works fine in Windows, and I can access the configuration page for my router to change channels, PPP, etc..

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Ubuntu Networking :: Slow Wifi Network - 1M Bitrate - Can't Change It

Jul 5, 2010

I have 1 router 2 pcs. We had to move one pc away from the router so I bought a wifi card. Everything went fine, the card works and I have internet but the network is incredible slow.

I am using Ubuntu Lucid Lynx 10.04

lspci | grep Wire

Code:

Code:

Then:

Code:

But there are no changes.

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Ubuntu Networking :: 10.04 Lucid Lynx Network WiFi Slow Speed

May 18, 2010

A lot of people have the problem to find themselves with Lucid Lynx 10.04 and experience massive issues when connecting to wireless - me too. As a service, here some relevant links which promise relief:

[code]...

I tried all of them, and none reliably worked. Every solution which required re-association wtih the AP helped for some time, but nothing helped for long. First, don't let yourself fool by the disable IPv6 trap - while it is "enabled" it is acutally not used by Lucid! I have a clean install of Kubuntu 10.04 on an AMD64 Laptop with Broadcom STA driver: 03:00.0 Network controller: Broadcom Corporation BCM4328 802.11a/b/g/n (rev 03) However I can reliably stabilize my connection for some time either by manually disabling WiFi with the hardware switch or disabling WiFi by software means and re-activating. This brings speed at par with Kubuntu 9.10 until some time. Can anybody confirm this behaviour?

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Fedora Networking :: Broadcom 4328 Very Slow WIFI And Unstable

Sep 10, 2010

I am succesfully installed a Dell wireless card with Broadcom 4328 shipset using ndiswrapper and rpm sources on Fedora 12 2.6.32.14-127.fc12.i686.PAE. Now I am using original Win drivers but the wifi conection is very slow and unstable.

The wifi card runs perfectly on win 7.

This is the lspci -vvnn outpput

03:00.0 Network controller [0280]: Broadcom Corporation BCM4328 802.11a/b/g/n [14e4:4328] (rev 03)
Subsystem: Dell Wireless 1500 Draft 802.11n WLAN Mini-card [1028:000a]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-

[Code].....

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Ubuntu Networking :: Wireless Is Slow To Connect At Startup?

Mar 7, 2010

I am running 9.10 on my compaq laptop. I tried linux a couple years ago and was not impressed with it's operation on this machine (wifi didn't work, pain in the butt to make it work) but I just installed 9.10 and to my surprise, everything on this machine seems to work now automatically!

One minor annoyance though, when I boot my machine and the gnome desktop loads, it takes about 1 minute until the wireless finds and connects to my router. Granted, my SSID is set to not broadcast but I set ubuntu to find it as a hidden network and it does in fact work, just takes more time than usual to find and connect. Normally with windows, when it loaded, my wifi was present and connected immediately.

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Ubuntu Networking :: 11.04 Slow To Connect To Wireless Network?

Apr 29, 2011

When first starting up I am not able to get a wireless connection, network manager says that wireless is disabled. Then some time later (can be up to five minutes after starting up) it will finally start working.I have tried rfkill list all, but it shows:

0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no

[code]....

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