Networking :: Ubuntu Can't Reconnect To Gmail After ISP Restores Access / Fix It?
Dec 31, 2010
Lately, my ISP has started making all Google sites inaccessible for a short time every afternoon (last 3-4 days now). I suspect some kind of DNS poisoning... access always comes back later in the afternoon.
When access does come back, non-Linux machines can connect basically right away, but my Ubuntu machine (the primary one I use) seems to need a reboot, as if wrong DNS information gets stuck in the session and the reboot clears it so that the machine can get the correct IP address.
I have not installed nscd, and IIUC the OS should not be persisting DNS cache information without that package. Every reference I can find online to clearing the DNS cache seems to depend on this package.
The objective is just to get back in touch with my Gmail without having to reboot (since e.g. OSX doesn't require a reboot for the same). What should I do?
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Nov 8, 2010
My college internet providers shifted to a different setting.. defined in the changing lan proxy settings on the user end. I.e.ip - 192.168.0.200 and port to 3000. This to reduce misuse of the net connection ..The thing is, since then, every other website is working, except GMail. It isnt blocked, the Nebero page shows up for blocked sites. When attempting to open gmail, the default internet page shows up for unavailability of page owing to no or slow response from the server, or the firewall or proxy settings not appropriately configured. I cannot open gmail, the connection on empathy im. I cant ping gmail either. No response. What can be the problem.
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Mar 5, 2010
I didn't find a solution to making my 3G/GPRS "modem" reconnect automatically when the connection fails, so I made a solution of my own. It's very annoying when you're downloading a file overnight, only to find that the connection has failed 5 min after you went to sleep.Restarting the NetworkManager daemon makes it automatically connect to all configured interfaces, including 3G/GPRS, so I made a simple script to do that.First, we check if the modem is even connected. Replace Huawei with the brand you're using. Any unique word on the line in lsusb will do fine as well. Then we check if the connection is up, and if it is, we simply exit. Otherwise, the NM daemon is restarted, which causes the 3g/gprs to reconnect.
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Jun 4, 2010
I've been having some problems with ufw on ubuntu 10.04. I didn't realize until just recently that the problem was ufw. I couldn't access gmail, or yahoo, or delicious, or gwibber -- or really most things that required logging in -- properly.
Then I noticed that disabling ufw made all the problems go away. But I'd like to have a firewall in place. I can't figure out what rules I need to put in ufw so that I can keep ufw active. I enabled http, https, imap, a few other ports too -- but nothing seemed to do the trick. So long as ufw was active, I couldn't access a bunch of sites.
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Nov 17, 2009
I'm running sugarCRM with fedora 11.I want to make my sugarCRM send email to my gmail account . But I always get this error : imap.gmail.com: No such host. I'm sorry to bother this question here ,but I can't fine a good answer from SugarCRM forum .And I have struggled with this question for days .Here are some details:
Operating system type and version Fedora11
Sugar version and edition Sugar Community Edition Version 5.2.0j
Webserver type and version httpd-2.2.13-1
PHP version php-5.2.9-2.fc11.i586
MySQL server version mysql-5.1.37-1.fc11.i586
[Code]...
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Nov 5, 2010
My Problem is: I want to stop gmail access without blocking https. Yes in my squid proxy normal http://gmail.com is not accessible. But gmail recently started https service by which user can still get access to gmail. I DONT WANT TO STOP https CAUSE ITS BEING USING BY MY COMPANY GOOGLE MAIL PROGRAM.
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Jan 29, 2010
wireless disconnects after a few hours, there is a 50/50 chance that the reconnect fails. if it fails i am asked for the wpa2 key, if i hit cancel and try to connect manually after 2 minutes it connects most times. if i enter the wpa2 key and hit connect i won't get any connection. reading the loglife of my router shows that my laptop connects and disconnects in a 7s rhythm. a restart solves this problem (is there a command to manually restart the network without the need to restart?
laptop: packard bell easynote w1000
ubuntu 9.10
lspci -v readout:
Code:
Network controller: RaLink RT2500 802.11g Cardbus/mini-PCI (rev 01)
Subsystem: RaLink Device 2560
[Code]....
probably related, after suspend or hibernation networking is disabled, enabling it via right-click does not work again after a restart everything works how it should.
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Sep 21, 2010
I just started using Ubuntu at the advice of a friend. I am running it from a flash drive.I have a wired network that always works fine with Windows on this computer.After starting up Ubuntu it connected right up and I was able to use it. Then, out of the blue the machine shut off. Upon restart, I was unable to connect to the internet.I reinstalled Ubuntu to a different flash drive and it worked fine once again.I left the computer running while I went out for supper, returned and the computer was "asleep" and would not wake back up.I shut off the computer and restarted Ubuntu.No internet again. As always, it works fine in Windows.Also, BOTH times this has happened, the OS says I am connected to the internet, and I can turn the connection on and off, but it is not connected. This happens even if I reboot the computer. (I have a cable connection.)
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May 26, 2011
I'm having a problem with the wireless on my Asus EEEPC 1000HE using Ubuntu 110.04. Digging into the laptop forums, it says there is a problem with wireless on some models of the 1000HE, but it is not the same wireless device and my wireless problem doesn't seem as bad as listed, so I think it's a different problem. But my problem is that if wireless drops for any reason, it will not start working again unless I either reboot the computer or click the wireless icon in the systray, click disconnect so it stops flashing (like it's trying to reconnect) and then suspend my computer or log off and back on. And it only does the latter because I added a file located at /etc/pm/config.d/00sleep_module with the one line that reads SUSPEND_MODULES="rt2800pci" (my wireless driver) So that one line seems to cause wireless to get a fresh connection after suspending (or something. I'm not a very advanced LInux user). I've tried running the command "sudo/etc/init.d/networking restart", but that does nothing for me. I'm not sure what other command to try to see if can fix it.[URL]
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Aug 16, 2011
Here is my problem:
I can reconnect to internet after disconnecting (this happens every 3-4 hours) only if I manually poke out and in ethernet cable to network adapter or reboot ubuntu. Even restarting network-manager not helps. My provider provides internet over pppoe. I have "DSL-connection 1" item in network managers gui menu. And that item disappears after disconnection.
pppd runs with following arguments: lcp-echo-failure 3 lcp-echo-interval 20 So where can I change this parameters, where is that configuration file?
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Aug 20, 2010
I was wondering if anyone has figured out how to access their Gmail files via IMAP on Konqueror? There is supposed to be an imap:// kio slave, but I can't get it to login to my Gmail. I tried imap://username@gmail.com but no luck. I also tried [URL].. since I think the username has to include the @gmail.com part. But still no access.
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Apr 18, 2010
Recently I've installed Ubuntu 9.10. I have DSL connection so, I wrote all details needed. After trying to connect on it, it automatically disconnects and connect auth connection again. I have worked on 9.04 and older versions and used to work very good, also the internet connection, but not in 9.10.
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Nov 1, 2010
Running Ubuntu 10.10, and I can't get my WUSB100 v2 Linksys adapter to work. I've tried what's in this thread: [URL] Entered lsmod |grep rt into Terminal and found out it runs on the rt2800 chipset, so I blacklisted everything necessary. It finds and connects to my network but after about 10 minutes it disconnects and won't reconnect.
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Mar 24, 2011
I am fairly new to linux. I have Ubuntu 10.10 on my Dell Inspiron E1705. While browsing my internet connection suddenly stops working. It says that I am still connected but the internet doesn't work. When I try to disconnect then reconnect it will not connect to the network. To get it to reconnect i have to turn of the wireless card, delete the connection then restart, turn the card back on and reconnect.
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Apr 21, 2011
Running 10.10 on Hp dv2000. Approx once a day wireless asks for password authentication but cannot re-connect to wireless network. I verified connection, correct password and modem & router functionality but still will not re-connect. After re-boot problem is resolved for another day or two.
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Nov 27, 2010
i use ppp to connect to a VPN, and i need it to auto reconnect when i looses connection. How do i make it work?I use Debian.
options.pptp settings:
lock
noauth
[code]....
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Feb 22, 2010
I'm actually running Debian Lenny and using WICD. Sometimes when I wake the system up from standby it reconnects me to my wireless connection, but sometimes it wont. (Same thing for hibernate). On the times that it wont work it just hangs at obtaining IP address.
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Nov 20, 2010
So i installed ubuntu 10.04 on my Hp dv9000 and all went well, then a few days after it asked if i wanted to update to 10.10 so i did and this is where things went kookie.
After i installed i noticed my wifi was all screwy. It would connect but kick me off after several mins of use. I installed WICD hoping that would fix the problem but it didnt. internet work for a few min and then just suddenly cuts out and i have to restart to reconnect because it shows no networks in the manager?
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May 3, 2010
I am using WICD as my wireless network manager and it works connecting to a network for the first time. But when I resume my laptop from hibernate or standby, WICD will not reconnect to the network and gets stuck on obtaining an IP address. And if I try to change networks without hibernating I get the same problem. Also, I notice that the network name is stagnant. I connect to multiple wifi networks a day because of school. When I leave my "home" network and connect to my "school" network WICD still says "Homebtaining IP address" even thought it should say "schoolbtaining IP address." My thoughts are that it isn't releasing the network properly and when its trying to connect it can't because it still thinks it's connected. The only solution I have found is to restart my laptop every time I want to connect to a new network, or shut down every time I am done using my laptop, which is a major inconvenience.
Here is what I am using:
HP tx2000
Broadcom BCM4322
Ubuntu 10.04
WICD 1.7.0
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Mar 3, 2010
Sometimes I am unable to reconnect to my wireless AP using the same settings that worked the previous day, and that has me stumped. I think it's due to me switching access points (using different authenticatin) since the last connection.
1) After I enter iwconfig/iwpriv commands to connect my wireless usb card (edimax) to my WPA2 network, what process performs the negotiation with the AP, and is there a way to see status debug messages from that process so that I can see if there was a successful negotiation? (so I can see if the password is correct, etc).
2) Is there a way to manually invoke that process to re-attempt to negotiate? Or must I assume that happens automatically with any iwconfig/iwpriv command?
3) Is there a simple command that will erase all iwconfig/iwpriv settings so that I can start over with my iwconfig/iwpriv commands?
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Sep 21, 2010
I'm running WiFi AP (hostapd/nl80211) and STA (Wicd) in my home net. More or less all does work fine at last. The only problem I have - STA reconnection works few times only (1-4 times), ending with unsuccessful authentification (and multiple AP probing in hostapd debug output before STA failing).Two contradictive facts take place:
1. Reloading hostapd on the AP side permits Wicd to reconnect, while STA rebooting(!) doesn't help.
2. Another STA - my son's Nokia mobile phone (don't know a model) - reconnects with this AP without problems (we have tried 10 times).
So, you see, first fact says something wrong with AP, while the second one says something wrong with STA. Or you can treat these facts in strictly opposite way Indeed WiFi under Linux is very fragile area yet. I have found plenty of close-to-be-similar reports as well as different resolving ways (but it is rare case).OK, few words about setup. Up to date Kubuntu Maverick testing with backports enabled on both sides. ASUS USB-N11 adapters are in use on both sides. It means RT2870 chip.
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Nov 8, 2010
I'm running a ZTE MF112 HSUPA USB stick (3 broadband dongle) for wireless broadband using network-manager.I can connect fine to mobile broadband, but every now and then, the signal drops and the connection is disconnected. When I try to reconnect it goes straight to network disconnected. It looks like it's not even trying to connect.Then when I right click on network manager, disable mobile broadband, then enable it again, works fine until the next disconnect.The point is, why do I have to keep disabling / enabling it? Pulling the dongle out works too. But there should be a workaround.
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Aug 17, 2011
I am running a version of Ubuntu 10.4 with XFCE loaded (actually Qimo, a distribution for kids). I am using a pci wireless card with a broadcom 43XX chipset and WPA2 authentication using the Broadcom STA driver. In an account with privileges I set the auto eth1 (which is what my wireless card comes up as) to connect automatically, and make available to other users.
When I switch to the kid's account, the wireless connects just fine. Then, if the computer is not used for a period of time, the powersavings mode kicks in. When the computer is woken up, the wireless connection does not attempt to reconnect. If you right click on the networking icon it doesn't even show any available connections, even though it can be found by clicking edit connections. The only way I can get it to reconnect is to restart the machine (I will admit that I did not try to restart the networking service, I will try that tonight).
Any ideas? This has been driving me nuts for a few days now. The users during the day are non technical and can't deal with these kind of issues. I can post more details about the setup (as recommended by the sticky post) tonight. I am at work at the moment and can't get to the machine from here - because it has removed itself from the network again.
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Aug 10, 2009
I am having a problem reconnecting to the internet when I put my computer in suspend or hibernate. For some reason when I put my computer in any one of these modes it disconnects from the internet, and I have no way of getting back on the internet after that. I use to have the option of "Enable Networking" on my top panel, but it seems to have disappeared for some reason. Is there any way to stay permanately connected to the internet, even when it is in hibernate mode, or could someone tell me how to get the enable networking icon back?
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Oct 28, 2010
I would like to send emails form my server using my gmail account.Does anybody know how to do it?
OS = OPENSUSE 11.3 server installation - NO GUI....
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Jul 27, 2010
use any browser and go to gmail. i can't get gmail to load. if i browse on videos, links to videos don't work. they appear to be taking a long time to buffer, then a message appears saying to try again. sometimes, links on google search pages are all dead. yahoo mail loads as far as logging me in, then i get a page with all dead links.
i'm using a laptop at several locations that have free public wifi. at some places, everything works perfectly normally. at other places, google and yahoo are almost useless. the "bad" places work just fine under ms windows.
so i figure it's a networking/handshaking issue, but that's all i can figure. i need help to troubleshoot it further. if it's happening to me, it has to be happening to other people, and i consider it a major hassle.
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Oct 7, 2010
I have an IBM ThinkPad W700 running 64 bit Ubuntu 9.10 Karmic Koala. At the office I normally connect it to the Ethernet since it's never connected very reliably to the wifi there (drops out 2 or 3 times per day, usually at the worst possible time, of course), but it always worked just fine with Netgear WGR614v5 at home... until a week or two ago.
I used to be able to come home, take the laptop out of suspend mode, and it would connect to the wifi. Occasionally there'd be some hitch and I'd have to restart the network manager (sudo /etc/init.d/network-manager restart) but this was only sometimes, and when I did, it'd always work. But now, when I get home from work, I need to restart the entire system to get it to connect properly again. Without restarting the whole system, it either doesn't scan for wifi networks, it doesn't find any wifi networks, it keeps stuffing up my wifi password, or it connects and gets 0% signal.
Presumably, some driver was updated recently and it doesn't work so well. What's the easiest way to find out what drivers have been updated lately, and revert to a previous version? And what else can I try restarting so I don't have to restart the entire system? I've tried /etc/init.d/network-manager restart, /etc/init.d/networking restart, /etc/init.d/network-interface restart, and restart network-manager. I've also tried turning the wireless switch at the front of the laptop off and on, many times.
Code:
$ lspci -nn
[...]
03:00.0 Network controller [0280]: Intel Corporation Wireless Wifi Link 5300 [8086:4236]
[...]
$ ifconfig wlan0
[Code]...
The info above is when I've taken my laptop out of suspend mode and it won't connect to the network. lsmod doesn't say anything about wifi nor wireless; iwlist does see my network, which my older Januty laptop is connected to without drama.
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Jan 15, 2011
I accidentally permanently deleted a few files and I was wondering if there was a program that finds the files that were deleted and restores them?
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Feb 13, 2011
I've been working on getting another OS installed on my computer for one of my classes (OS specific assembly instructions). To get this OS running, I had to start using a GPT rather than a MBR table. I backed up my Ubuntu partition (ext4) using the old-fashioned dd command. I've since been able to get everything working again after a dd restore.
The problem is that my original Ubuntu partition was only about 50GB and the dd image only takes up 40 GB. After I restored the image to the new drive (146BG), gparted is reporting 119GB used and only 26GB free. What can I do to reduce the size of my install to 40GB again?
When looking at the disk in baobab, it says the the filesystem is only 47.2 GB and that only 20.9 GB has been used. This is likely what the old partition's breakdown was. So my new question is: How can I make the filesystem capacity (47.2 GB) equal that of the partition that it is on (146 GB)?
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May 1, 2011
Since upgrading to the final version of 64Bit Natty, I have a problem with the mouse randomly freezing, I cannot do anything with it. So far the cure is to press enter, which also sometimes starts a program or logs out, but not all the time. In fact generally it just unfreezes the mouse and I carry on!It is though rather annoying so if there is a solution to this I would appreciate it.It never happened with the Beta versions just the final one!
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