Networking :: Received Data - RX - Errors And Very Slow Connection
Jun 22, 2010
I have a Webserver (Co-Location) and all runs fine ... since last week. Now there are a lot of RX-ERR shown in netstat and ifconfig. And when I try to upload a external website direct on the server for example via wget, it is very very slow and hangs very often.
RX packets:2919694 errors:990386 dropped:0 overruns:0 frame:596420
TX packets:4231423 errors:0 dropped:0 overruns:0 carrier:0
I have analyse the network but I was not able to find a problem. My hoster has checked the network and all looks fine. For example my hoster has plugged-in a pc in the same switch ... and was able to do wget (load external data, like websites) in normal speed.
Since last week my websites were delivered slower as before, too. It seemed there is a network-problem ... but how can I find it?
Actually I can install moduls ... but the server needs hours. So, if you knows a good command-line tool to analyse the network.
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Feb 22, 2010
I',m executing ping, but it didn't work, in order to find the mistake in my network I would like to know how to see the errors:
Code:
18 packets transmitted, 0 received, +12 errors, 100% packet loss, time 17038ms, pipe 4 I want to see this +12 errors. Could I do that?
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Jun 30, 2010
I was wondering if there was a Windows or Ubuntu way to limit the amount of data that is able to be sent over the internet between certain times, eg. Between the times of 7am and 7pm can only download 300 MB from the web, when this limit is reached the web is either disconnected or slowed down.
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Dec 13, 2010
I have a relatively new computer that won't boot Win 7. After going through a lot of tries, I got a suggestion that I try to boot using Ubuntu from a USB flash drive ( since I can't burn a CD).
I followed the procedure to put the necessary files (Version 10.04 64 bit if I recall correctly) on the drive and tried to boot using it.
I got this message:
When I tried to boot again (from the above) I just got the second message (No DEFAULT etc.)
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Aug 19, 2009
I am quite newbie with Linux networking and I want to know if there exist a log in Linux where errors during transfers are stored. I mean, when I'm transferring data between two hosts is there any way to log somewhere (where?) the errors or warning during the transfer? That is, connection failures, TCP or UDP errors, etc.? Is there any "log level" to select the errors to be displayed in the log not to work with a huge log file?
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Apr 14, 2009
I am having a problem with slow data transfers with both Samba and scp. I have gigabit NIC's on both all three machines that I am transferring to and from, connected to a gigabit switch. My data transfers under both smb and scp average around 21 MBit/s, (I am using nload to monitor transfer speeds).The machines are configured as follows,1) desktop
AMD Athlon 64 X2 6000+
6 gig Corsair memory
Realtek RTL8168C(P) gigabit NIC (on board)
[code]....
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Oct 14, 2010
Elsewhere is my question about 11.3. I have had to abandon that and 11.3 as my RAM is too small. Now, for the first time in many years, I find it necessary to extract specific data from received .pdf files. According to OpenOffice, editing of these files is only possible from version 3.2. My concern is whether this later vesion will be compatible with 11.2.OpenOffice installed is 3.1.1.4-1.1.4-i586. The same question has been directed to their Forum.
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Jun 28, 2011
We could not access our web site page on firefox or chrome or ie:
Firefox give us these error:
We also try on linux with wget to access it:
Here is the result:
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May 28, 2011
I have a Lenovo Thinkpad SL510, with a "Realtek RTL8188CE 802.11b/g/n WiFi Adapter (rev 01)" wireless adapter, on Ubuntu 11.04 x64. When I run updates, I get many resolve errors "Something wicked happened resolving us.archive.ubuntu.com," and other errors like that.Also, the internet connection runs incredibly slowly, and a lot of my downloads through firefox freeze and fail. I'm wondering if all of these problems are connected. Here are the contents of /etc/resolv.conf
Code:
domain gateway.2wire.net
search gateway.2wire.net
[code]....
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Jan 9, 2010
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.
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May 2, 2011
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
[Code]...
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Dec 15, 2008
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: 80.58.61.250, 80.58.61.254
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
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:1810 errors:0 dropped:0 overruns:0 frame:0
TX packets:1810 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:90500 (88.3 KiB) TX bytes:90500 (88.3 KiB)
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 (66.102.9.99) 56(84) bytes of data.
64 bytes from 66.102.9.99: icmp_seq=1 ttl=243 time=78.7 ms
64 bytes from 66.102.9.99: icmp_seq=2 ttl=243 time=84.2 ms
64 bytes from 66.102.9.99: icmp_seq=3 ttl=243 time=75.1 ms
64 bytes from 66.102.9.99: icmp_seq=4 ttl=243 time=82.1 ms
64 bytes from 66.102.9.99: icmp_seq=5 ttl=243 time=82.8 ms
64 bytes from 66.102.9.99: icmp_seq=6 ttl=243 time=79.4 ms
64 bytes from 66.102.9.99: icmp_seq=7 ttl=243 time=82.3 ms
64 bytes from 66.102.9.99: icmp_seq=8 ttl=243 time=75.2 ms
64 bytes from 66.102.9.99: icmp_seq=9 ttl=243 time=80.7 ms
64 bytes from 66.102.9.99: icmp_seq=10 ttl=243 time=84.7 ms
64 bytes from 66.102.9.99: icmp_seq=11 ttl=243 time=75.0 ms
64 bytes from 66.102.9.99: icmp_seq=12 ttl=243 time=82.2 ms
64 bytes from 66.102.9.99: icmp_seq=13 ttl=243 time=85.1 ms
64 bytes from 66.102.9.99: icmp_seq=14 ttl=243 time=80.9 ms
64 bytes from 66.102.9.99: icmp_seq=15 ttl=243 time=87.7 ms
64 bytes from 66.102.9.99: icmp_seq=16 ttl=243 time=87.6 ms
64 bytes from 66.102.9.99: icmp_seq=17 ttl=243 time=83.2 ms
(...)
- www.l.google.com ping statistics -
49 packets transmitted, 48 received, 2% packet loss, time 560804ms
rtt min/avg/max/mdev = 73.624/80.945/87.725/3.823 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.
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Jan 17, 2010
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.
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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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Apr 30, 2010
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:
Code:
sussa@sussa-laptop:~$ sudo lshw -C network
[sudo] password for sussa:
*-network
description: Wireless interface
product: Wireless WiFi Link 5100
vendor: Intel Corporation
physical id: 0 .....
Apart from that, I must say that Ubuntu 10.04 is fantastic. Easy to use, elegantly designed and working perfectly on my PC
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May 10, 2010
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.
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May 21, 2010
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
[Code].....
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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.
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Sep 19, 2010
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%.
[Code]...
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Dec 3, 2009
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.
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Mar 18, 2011
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 am on Arch linux with a Broadcom wireless card.
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Jan 2, 2010
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.
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Apr 5, 2010
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).
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Oct 27, 2010
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.
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Nov 30, 2010
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.
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Jan 3, 2011
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.
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May 12, 2011
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?
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Mar 28, 2010
I want to identify why my ISP is sometimes slow, and wonder how and what tools to use. The problem is as follows: While the lines are very fast, I experience that at times of day where there are presumably high traffic, a new initial connection is very slow and unstable. For example getting response from DNS is slow. And after getting the answer, getting response from a web server is also slow. Or sometimes there is no response at all, and I have to retry. Running a speed test will show high data rates. So it is only initial connection that is slow/unstable.
What is the explanation for these symptoms? Are there some tools and tests I can use to pinpoint the problem from home, without/before contacting the ISP?
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Jul 21, 2009
on my laptop (dell d620) when I try to connect to wpa networks I get frequent disconnections and very slow speed.
My network card is: 0c:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection (rev 02)
Insted when I use connetion whitout wpa encyption I've no problems...
how to configure iwl3945 to get decent performance on wpa networks ?
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May 15, 2010
I have installed Fedora 12 OS which is using kernel 2.6.32.11-99.fc12.x86_64. I am using a Linksys WMP600N Wireless-N PCI Adapter with Dual Band card which has a Ralink chipset. I have installed the latest rt2860 driver which uses the 2.6.32.11-99.fc12.x86_64 kernel. If there is any other pieces of information that is need I can provide it.
Problem: I can use either the Ethernet connection which is built into my ABIT mother board or my PCI wireless card. My Ethernet connection works perfectly however; my wireless card comes up attaches to my wireless router; that's it. There is a strong signal, the WPA2 security password works correctly. I am able to ping my loop-back address and my DHCP IP address for my wireless card but I can not ping the router or anything outside of my box.
If I let the ping program run for a while and allow it to try to ping the router, after a period of time ~5minutes or so I will get several hits and then stop. The firewall does not change from my Ethernet connection to my wireless connection. The Wireless connection is a trusted interface in my firewall specifications. Questions/Thoughts:
Can I use the same OS provided routing table for my Ethernet connection for my wireless connection? Would the OS know which port to use by switching to a wireless connection (after reboot)? Do I need to somehow switch or bridge the port? Is the wpa_supplicant playing with my connection and opening it up and then shutting it down? Below are some netstat data: routing, interface table, statistics, and dmesg on the kernel driver rt2860.
[Code]....
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