Ubuntu Networking :: Wifi Not Reliable And Picture Drops?

Sep 26, 2010

I have a dual booth system (ubuntu (64 bit) and windows 7 (also 64))... In both systems I have trouble with my wifi:Sometimes it works for a few hours without trouble and then I stops working every 10/15 seconds after reconnecting. In windows it keeps on reconnecting, but in ubuntu sometimes also the wifi logo/picture disappears from my panel, so I can't start wifi again or see it's status.

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Fedora Networking :: WiFi Not Reliable And Can't Change Networks?

Jul 24, 2009

Fedora 10 (dual boot w/ XP) on Dell Optiplex with a Dell wirelessntennaI am on a university campus with campus-wide wifi network (so no router). I have a wireless HP printer that I want to be able to print to using an ad-hoc connection. The wireless antenna, networking, and wireless printing are all working in Windows XP (so hardware is OK). However, on the linux side, the wifi is really really finicky.

When I first boot up to fedora, it usually connects no problem to the campus-wide wifi network. If I try to switch to the ad-hoc printer network (which it sees), will not connect and, furthermore, it will no longer connect to the campus-wide network (and sometimes it doesn't "see" this network at all). It seems that restarting the Network Manager service sometimes helps to reconnect to the campus-wide network, but not always and I can't connect to the ad-hoc regardlessNOTE: I'm just barely a linux user, and I didn't set up my system - don't assume that I did anything that would be common sense and, if you can, walk me through your suggestions.

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Ubuntu Networking :: Wifi Connection Drops On Laptop?

May 1, 2010

I'm having a really strange problem with my wifi connection on my laptop. The ethernet connection works fine and so does the wifi connection - as long as I sit within one meters range from my router! As soon as I take the laptop further away the connection drops. The router is still being found by network-manager and the signal is just below 100%, but when I try to establish a connection it fails.

I'm sitting here on a fresh Ubuntu 10.04 install, and I had exactly the same problem with 9.10. That time I went through a lot of different procedures, and in some strange way the problem was solved. I haven't been that lucky this time though, I've tried reinstalling network-manager, using ndiswrapper, installing the wireless backports package, tried all kinds of drivers.. nothing works.

There shouldn't be any problem with the connection itself; I've had a perfect connection downstairs but now I can't even connect if I stand two metres from the router! Has anyone experienced anything like this and managed to fix it? My wireless card is Atheros AR2413. This is an example from daemon.log

Quote:
Apr 30 00:45:51 petter-laptop NetworkManager: <info> Activation (wlan0) starting connection 'Auto Wester'
Apr 30 00:45:51 petter-laptop NetworkManager: <info> (wlan0): device state change: 3 -> 4 (reason 0)

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Ubuntu Networking :: Asus Eee PC 1005HA Drops 50% Of Incoming Packets Over Wifi?

Oct 30, 2010

Pinging out from my netbook (over wifi, to any host) gets ~0% packet loss. Pinging into it (from any host) gets about 50% packet loss.

The router is a Dlink-DIR615 (rev d, running DD-WRT v24-sp2) but all other hosts on it ping eachother fine. I've tried changing routing, disabling IPv6, using older kernels and using wicd, all with no luck. The wireless connections is at 100% most of the time. This could be a new problem with Maverick, but I may not have noticed it before. I believe this is causing web browsing to be really slow and causing SSH timeouts.

I haven't tried madwifi drivers or nsidwrapper yet.

Edit: just booted into Windows and it has the same problem. Could it be a hardware issue? Also tried with a static IP, with no change.

Strangely, a normal ping gets 50% packet loss, but ping -A gets < 1% loss.

Edit 2: no packet loss at all on eth0.

Code:
# uname -a
Linux hulbert-laptop 2.6.35-23-generic #36-Ubuntu SMP Tue Oct 26 17:03:18 UTC 2010 i686 GNU/Linux
Code:
# ifconfig wlan0
wlan0 Link encap:Ethernet HWaddr 00:25:d3:1a:bc:4b
inet addr:192.168.0.102 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::225:d3ff:fe1a:bc4b/64 Scope:Link

[Code]....

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Ubuntu Networking :: Wifi Speed Drops Periodically And Will Not Increase Without Reconnecting?

Jan 25, 2011

after maybe half an hour, the wireless download rate drops to about 110ks (and runs happily at up to 20x this until then). At that point, it will never pick back up above that rate unless i disconnect and reconnect. Once the problem occurs once, its like to reoccur about every 5 to 10 minutes until the machine has rebooted.

[Code]...

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Ubuntu :: WiFi Drops Out But Not In Windows?

Jul 23, 2010

I'm travelling right now so am not connecting into my normal router. When using Ubuntu it connects to the Wifi and then after about 15 secs drops me out again. I I boot to Windows XP this doesnt happen.

where I should start looking tofigure out the problem? I'd much prefer to use linux

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Ubuntu :: Wifi Drops When Plugging In Webcam?

May 23, 2010

why my wireless adapter drops out when I plug in my web cam.

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Ubuntu :: 10.04 Wifi Connection Randomly Drops And Reconnects?

Sep 27, 2010

i have dell latitude d830. has anyone else had this problem? it drops and reconnects every 10 minutes or so.

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Hardware :: Ubuntu Drops WIFI When Phone Rings?

Sep 24, 2010

We have a single modem for our Phone, TV & internet. Every time the phone is used I loose the internet signal. Only using Linux,(Ubuntu 10 )there is no problem with my Windows computer ?

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Networking :: Ensure Reliable RS-232 Connection?

Oct 15, 2010

I have a configuration file for a network device(2100 lines). This device is configurable only over console line. If I copy chunks of those lines into terminal(I use minicom), there will be mistakes (sometimes some characters missing, space characters added etc). Hardware flow control and software flow control doesn't help either. I tried with cu utility, but same issues appeared. There will be mistakes even if I copy in ~100 line parts. What causes those missing/added characters? How to avoid those?

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Networking :: Any Reliable / Inexpensive Web Hosting Service?

Jan 18, 2011

I'm looking for an inexpensive but reliable web hosting service. Have been using Byet, but they have yet to successfully renew the subscription, so am in the market for another service. It doesn't need to have great tech support, just reliably keep the site up. cpanel, of course, is a plus.

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Ubuntu :: Edited A Picture In Digikam - Picture Does Not Appearance?

Jan 24, 2010

i had just edited a picture in digikam that was going to be my new desktop wallpaper.when i went into system/preferences/appearance to make the new change it would not show the new picture that i had just edited as a choice to change my new wallpaper to. then i tried closing the appearance box and it would not close.then i shut down and restarted and when i bring up the appearance box it does not let me click on anything within.also can't close it.seems like other applications are working normally.

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General :: Make Picture Icons Larger When Selecting A Picture File To Open?

Jul 27, 2011

I'm trying to use Pinta Image Editor but I cannot find an option to preview the image, in a viewable size, before I work on it.

what to do in this situation? Prefferably it would be nice to view all the pictures as thumbnails.

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OpenSUSE :: KDE 4.6 Taskmanager Popup Picture Instead Of A Picture Of The Actually Program

Jun 17, 2011

When I hover over an open programme which is on the task bar I get a pop up, but instead of a picture of the actually programme I get a grey box like this

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Ubuntu Networking :: Wireless Drops In An Out (9.10)

Jan 14, 2010

I am running Ubuntu 9.10 on a Dell Inspiron E1505 and I am having problems with my wireless. It is a Broadcom B43xx series wireless card. I have the restricted drivers installed but I have trouble with it maintaining a constant connection. I attend a college where in order to connect to the wi-fi you need to have their certificates installed.The wireless certificates are installed and I'm telling Ubuntu to use it in order to connect but it drops in and out. I will be connected for a minute or two but then it will randomly drop out on me. I know its not my wireless hardware because any other wireless that I connect to off campus works perfectly fine. Any ideas on how to get this to work correctly?

I hate to bring this OS up but my Windows 7 connects perfectly. (On the same laptop. I triple boot: Ubuntu, Windows 7 [gaming OS] and Backtrack4 )If it helps any the wireless AP uses WPA2-Enterprise, PEAP, and MSCHAPv2 authentication, and the CA certificate (which I have selected to use), plus my user name and password.

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Ubuntu Networking :: Internet Drops Out For Firefox

Jan 7, 2010

We have three computers at home. I have the only one running Linux, the other two are running Windows XP and using Belkin Wireless G USB Adapters. I started using Linux around November, and used a powerline ethernet cable. (It consists of two parts. One part you plug into your router and the power socket beside it, and the other you plug into your computer and the power socket beside that. It then uses the power lines as a network, and acts like a normal ethernet cable. I used the 'Auto eth0' connection without much problem). Back then, my internet would stop working once every few hours but only for firefox. Other programs such as bittorrent and Spotify continued working.

However, since I got back from holiday a few days ago the situation's worse. The internet regularly pauses (every few minutes, including spotify and msn) for about 30 seconds, and then comes back. Downloads are not cancelled, as they are when I am disconnecting from the internet, they merely seem to pause. The other two computers in our house don't have this problem, and I have tried the wireless adapter, yet it seems to pause at the same times as the wired connection. I know that it too used to work back in November.

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Ubuntu Networking :: Server 9.10 Lan Connection Drops ?

Jan 23, 2010

I got a new low power file server (Atom 330 with ion), but didn't enjoy it since.

I installed Ubuntu server 9.10 64bit.

I randomly experience connection drops. As I'm installing and testing, there are lots of ssh windows open, I transfer much data using scp from my laptop to the server (all connected to wired lan).

Connection drops are as follows: ssh windows terminate with "connection reset by peer", but not always all the ssh windows terminate. For example, I edited a mediatomb config using nano, that stayed open even with scp and all other ssh windows cut.

I also have apache2 installed because I'm running urd (a usenet download tool). It seems that when I start the deamon, connection drops. So I killed apache2 to try out but that didn't solve the problem.

I left ping run all the time, and the server is pinging back all the time, which is really strange as I thought that a connection drop means the whole network interface going down.

When this drop occurs, I have to wait 2 minutes until I can ssh back into the server.

I also installed mediatomb, but it isn't really fun to stream a video to my ps3 as it always hangs after 5 to 10 minutes.

Code:

lspci:

Code:

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Ubuntu Networking :: Improved Speed Now Net Drops A Lot?

Apr 8, 2010

I was having terribly slow internet speed with my wireless setup. I followed someone's advice and now my internet speed is flying. However, now I lose connection a lot - almost once every few minutes. Is there any reason for the changes listed below to make me lose connection so easily?

SETUP:

Ubuntu 910 - 64Bit
Wireless Router: WRT160N
Wireless Card: PCI Asus PCE N13

Changes that improved speed, but killed stability:

Radio Band frequency should be 20 MHZ,
standard channel change to 11
advanced wireless settings should be Beacon Interval 2306
Rts thres = 2307
Disable the Security easy setup*option.
Uncheck the Block Anonymous Internet Requests & reduce the MTU size to* 1400

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Ubuntu Networking :: 10.04 Wireless Drops Intermittently

Jun 22, 2010

i have an asus eeepc that i recently upgraded from ubuntu 9.10 to 10.04. the wireless networking has worked great up until about 2 weeks ago. now it occasionally drops the connection (can't ping the gateway), even though the "blue bars" still say connected. my current solution is to click the bars, do a "disconnect", and then reconnect.i've ruled out the router being a problem (all 17 other wireless devices in my house remain connected), and i've ruled out a laptop hardware problem (when i dual boot into win7, i never lose my connection).

i'm new to linux (installed 9.10 back in february), but not new to computers/networking. i run a major campus lan [windows based] and have worked all aspects from the early mainframe days to client support to server admin to helpdesk - after 17 years, i'm now in management, so i've lost my edge a little... plus, being brand new to linux, i'm feeling a little lost in the troubleshooting aspect of this.i do believe that i've narrowed my problem down to "almost exactly" when this occurs. the wireless connection drops out as soon as i start to do "network intensive" stuff like watch a videos video, play a facebook flash game, or (and here's the kicker), try to run the update manager. unfortunately, this means that i have not been able to update for a few weeks now. i'm up to about 150mb worth of updates that are waiting.

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Ubuntu Networking :: Wired Connection: WAN Drops But LAN OK

Aug 17, 2010

I've had a computer running Ubuntu connected to my TV for a few weeks now, but as of yesterday, I can't get it to keep a connection to the Internet. Everything works well for an hour or so after a reboot, but then no WAN connections work. When this happens, no sites load in Firefox or Chrome, I can't ping Google, I can't SSH to the box from work, and none of the pages I have running on apache load from remote computers. However, all local area connections seem to work fine. SSH from within my LAN takes much longer than usual, but it does still connect.

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Ubuntu Networking :: Wireless Constantly Drops Out?

Sep 15, 2010

I have been running Ubuntu for 2 years and have not had a problem like this. Randomly one day my wireless dropped out. I can see other networks on my laptop, but they are all locked so i cant test and see if i can connect to them so i went to my friends house and was connect fine for over an hour.

Also my PS3 and my windows box connect to my router and internet just fine.

I then assumed that this was a hardware issue then with my wireless card on my laptop. So i called up lenovo and they sent me a new wireless card. I installed it and still had the same problem.

Lenovo t400
Intel 5300 Wireless
Ubuntu 10.4
Router
Dlink-655

I realixe i am not giving to much information, let me know what you need and i will provide it.

I tried buying a new router now and it worked great!!!..... for an hour. Now it is doing the same thing.

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Ubuntu Networking :: Wireless Drops On Suspend

Feb 13, 2011

I've got a Dell Latitude 131L with Broadcom B4311, running Ubuntu 10.04. Wireless networking generally works just fine, but I lose my connection when the computer is suspended, and I have to reconnect manually from the drop down menu.

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Networking :: Internet Connectivity Drops With Ubuntu 10.10

Jan 23, 2011

I had my desktop running ubuntu 10.10 at my sisters house hooked up to a router sharing internet with her boyfriend never had a problem with it there. I moved into my own apartment this week plugged the cable modem directly into the broadcom ethernet card and couldn't get an ip or anything it wouldn't connect period so I ended up hooking it up usb which works but only at speeds of 5-7mbit when I have 15mbit connection. So I put another ethernet card in hoping it was just problem with the card and tried it that worked.

I got a connection but it was incredibly slow like getting maybe 5k a second so I open network tools in administration menu and start pinging google. While I'm waiting on a bandwidth test to complete and it takes off getting like 20mbit keeps that connection for a while then out of nowhere just drops to almost nothing. Again for a few minutes then falls off completely so I restart and it does the exact same thing starts off slow then something clicks and it works great for 5 min then nothing?

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Ubuntu Networking :: Stop Wifi Radio Killswitch From Disabling USB Wifi Device

Jul 3, 2010

My laptop has an internal wireless device and a button to turn it on/off, but since it has bad reception I use an external USB wireless adapter.The problem is that if I turn the internal wireless device off using the button, it also turns the USB wireless adapter off.Is there anyway to use the killswitch (the button) only for the internal wireless device?This only started to happen in Ubuntu 10.04.

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Networking :: Ubuntu 9.04 Can't Connect To Wifi With Intel Wireless WiFi Link 5100?

Aug 29, 2009

I have only had a few weeks worth of experience with linux, so I'm probably considered a newbie at this but I felt like giving it a shot. I just configured my new Toshiba Satellite A505-S6969 to jaunty. Most of the transition is going well but I'm stuck with a few issues, one of which is getting my wifi to work. Right now I'm working off of an ethernet cable.spci returns

00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07)
00:01.0 PCI bridge: Intel Corporation Mobile 4 Series Chipset PCI Express Graphics Port

[code]...

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Ubuntu Networking :: Wireless Still Drops Atheros AR9285

Mar 30, 2010

I bought this new computer with an Atheros AR9285 wireless adapter, signal dropped out after a couple of minutes, sometimes reconnected, I looked up different posts on [URL] and [URL].

First I installed linux-backports and linux-backports-wireless, still dropped. Then I installed compat-wireless-2.6.33 and it still dropped. Finalley I blacklisted the driver with gksu gedit /etc/modprobe.d/blacklist-ath_pci.conf and it still drops. What should I do, it seems to pick it up again after 30 sec or so, but it a bit frustrating.

P.S.: It seems to be getting much better now that I have the torrent program shut down.

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Ubuntu Networking :: XP Drops Connection To Samba Server

Apr 7, 2010

In order to get my shares working I first have to connect to the windows shares from the Ubuntu machine. Then I can connect to the Samba shares from the windows machine. If I don't continue to use the shares. It'll drop the connection and I have to unmount the windows shares and start the process over. The wireless network still shows as being connected but I get an error on the windows machine if I try to connect. I've Googled this and it appears to be a Windows problem. I know this is a ubuntu forum but thought I'd ask for any info. I believe that this is also what is giving me shared printer issues as well.

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Ubuntu Networking :: 10.04 Drops Wireless Connection On Aspire One ZG5?

May 17, 2010

I have an Acer Aspire One ZG5. 160GB HD, 1GB RAM model. I've done a fresh install and an upgrade of 10.04 and have the same problem both ways. I am able to connect to my wireless connection but it is dropped after about 5 minutes and have to wait about the same time to reconnect. I've had to roll back to 9.10 being that I use the netbook for work and school on a daily basis.

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Ubuntu Networking :: Connection Drops Randomly For A Split Second

Jun 5, 2010

I could not find a solution to this problem anywhere. I use a ubuntu server to play (stream) mp3s and movies to other computers on my network. It works most of the time, but sometimes in the middle of a movie or a song it will drop/hiccup--saying it is "not reachable". I am not overtasking the server at all, and merely playing an mp3 that takes up less than 10% of the bandwidth, yet it drops it for a split second.

I have a WRT160N router (DD-WRT of course) with 4 clients connected (2 of which are wired). The ubuntu server is connected via ethernet and all machines have the same issue. It can't be the router because another Windows machine works just fine for streaming these files. I just can't understand how it can lose connection for a second or so. It may just be the file-system or some service that is hiccuping, but I have no idea...

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Ubuntu Networking :: Wireless Drops Occassionally / Why This Is Happening?

Sep 2, 2010

I'm running 9.10 on a desktop that connects to my network using a PCMCIA wifi card plugged into a PCI cardbus adapter. Sometimes, (it seems to be when too much data has gone over the card), I lose connectivity. nm-applet still shows me connected but I can't even get to my router (ping or gui). I use ndiswrapper for the driver.

If I unplug the PCMCIA card and then plug it back in I get going again. My questions are:

1) Anyone have an idea why this might be happening?

2) Is there a way in software for me to unload and reload the wifi card?

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