I cannot connect to internet after I update system.

Hi,
I update my system a few day ago (use systemd to replace rc.d) and I cannot connect internet. I guess my router table is broken, but I cannot find any problem.
I use ping to try some IP. And I find I connect to local machine only.
Do I miss some configuration ?
[~]ping -c 3 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
--- 8.8.8.8 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2000ms
[~]$ route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 172.27.13.254 0.0.0.0 UG 204 0 0 eth2
10.10.12.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
172.27.12.0 0.0.0.0 255.255.254.0 U 204 0 0 eth2
[ ~]$ ping 172.27.13.254
PING 172.27.13.254 (172.27.13.254) 56(84) bytes of data.
--- 172.27.13.254 ping statistics ---
2 packets transmitted, 0 received, 100% packet loss, time 999ms
[ ~]$ route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 172.27.13.254 0.0.0.0 UG 204 0 0 eth2
10.10.12.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
172.27.12.0 0.0.0.0 255.255.254.0 U 204 0 0 eth2
[~]$ ping 172.27.13.254
PING 172.27.13.254 (172.27.13.254) 56(84) bytes of data.
--- 172.27.13.254 ping statistics ---
2 packets transmitted, 0 received, 100% packet loss, time 999ms
--- 172.27.13.254 ping statistics ---
41 packets transmitted, 0 received, 100% packet loss, time 40131ms

Hi,
I have 2 network interface.
The eth1 is for test only. It is connected to a 8 port LAN switch, and there are 2 NAS connected to this switch.
I use eth2 to connect to internet, for example, update system. I try to disable eth1, but it is still not work.
ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:e0:81:27:32:61 brd ff:ff:ff:ff:ff:ff
inet 10.10.12.50/24 brd 10.10.12.255 scope global eth1
inet6 fe80::2e0:81ff:fe27:3261/64 scope link
valid_lft forever preferred_lft forever
4: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:07:e9:01:a1:36 brd ff:ff:ff:ff:ff:ff
inet 172.27.12.23/23 brd 172.27.13.255 scope global eth2
inet6 fe80::207:e9ff:fe01:a136/64 scope link
valid_lft forever preferred_lft forever
ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN mode DEFAULT
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN mode DEFAULT qlen 1000
link/ether 00:e0:81:27:32:60 brd ff:ff:ff:ff:ff:ff
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT qlen 1000
link/ether 00:e0:81:27:32:61 brd ff:ff:ff:ff:ff:ff
4: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT qlen 1000
link/ether 00:07:e9:01:a1:36 brd ff:ff:ff:ff:ff:ff
Last edited by guardkuo (2012-12-22 10:52:35)

Similar Messages

Cannot connect to internet after software update

I have an old powerbook G4 running Mac OS X 10.3.9 (this is one of 3 macs) I also have an airport Extreme and an airport Express to make a network in my home. Frequently, after a software update to the old computer, it has trouble getting back on to the internet. Usually, adjusting access to the Keychain fixes this.
Now, after a software update last week--I cannot get on the internet with this computer at all. The computer is connected to the network, the password is in the keychain, the signal is strong (all of the other computers can get on to the network)--but whenever I try to get on, I get 'cannot connect to the server'.
(btw, Last evening, the issue resolved itself for about 3 hours--I don't know why--but today it is out again.) Can anyone help?

Hi, Rathh. Always use Disk Utility to repair permissions immediately after installing any software update that uses Apple's Installer application, or that is installed by the Software Update function accessed through the Apple Menu.

Cannot connect to internet after softqare update

I have an old powerbook G4 running Mac OS X 10.3.9 (this is one of 3 macs) I also have an airport Extreme and an airport Express to make a network in my home. Frequently, after a software update to the old computer, it has trouble getting back on to the internet. Usually, adjusting access to the Keychain fixes this.
Now, after a software update last week--I cannot get on the internet with this computer at all. The computer is connected to the network, the password is in the keychain, the signal is strong (all of the other computers can get on to the network)--but whenever I try to get on, I get 'cannot connect to the server'.
(btw, Last evening, the issue resolved itself for about 3 hours--I don't know why--but today it is out again.) Can anyone help?

Hi Rathh!
You might want to repost your question in one of these PowerBook forums (pick which model of the G4 PowerBooks you have):
Internet, Networking and a PowerBook G4 17-inch
Internet, Networking and a PowerBook G4 15-inch Aluminum
Internet, Networking and a PowerBook G4 12-inch
Internet, Networking and a PowerBook G4 15-inch Titanium
-Kylene

HT4623 My iPad is not connecting to internet after software update what can i do

Hi everyone I just update the software 7.0.4 on my iPad 2 and after doing that cannot connect to internet, can somebody tell me
what to do to correct this issue? Please

You can try resetting your iPad by simultaneously pressing and holding the Home and Sleep/Wake buttons until you see the Apple Logo. This can take up to 15 seconds so be patient and don't release the buttons until the logo appears.
Try again to see if the problem persists.
If yes you can try resetting your Network Settings. Settings > General > Reset > Reset Network Settings. Note that you will have to re-enter all of your WiFI passwords.

Cant connect to internet after ios6 update

cant connect to internet after ios6 update

iOS 6 Wifi Problems/Fixes
Fix For iOS 6 WiFi Problems?
http://tabletcrunch.com/2012/09/27/fix-ios-6-wifi-problems/
Did iOS 6 Screw Your Wi-Fi? Here’s How to Fix It
http://gizmodo.com/5944761/does-ios-6-have-a-wi+fi-bug
How To Fix Wi-Fi Connectivity Issue After Upgrading To iOS 6
http://www.iphonehacks.com/2012/09/fix-wi-fi-connectivity-issue-after-upgrading- to-ios-6.html
iOS 6 iPad 3 wi-fi "connection fix" for netgear router
http://www.youtube.com/watch?v=XsWS4ha-dn0
Apple's iOS 6 Wi-Fi problems
http://www.zdnet.com/apples-ios-6-wi-fi-problems-linger-on-7000004799/
~~~~~~~~~~~~~~~~~~~~~~~
Look at iOS Troubleshooting Wi-Fi networks and connections http://support.apple.com/kb/TS1398
iPad: Issues connecting to Wi-Fi networks http://support.apple.com/kb/ts3304
WiFi Connecting/Troubleshooting
http://www.apple.com/support/ipad/wifi/
iOS: Recommended settings for Wi-Fi routers and access points http://support.apple.com/kb/HT4199
Additional things to try.
Try this first. Turn Off your iPad. Then turn Off (disconnect power cord for 30 seconds or longer) the wireless router & then back On. Now boot your iPad. Hopefully it will see the WiFi.
Go to Settings>Wi-Fi and turn Off. Then while at Settings>Wi-Fi, turn back On and chose a Network.
Change the channel on your wireless router (Auto or Channel 6 is best). Instructions at http://macintoshhowto.com/advanced/how-to-get-a-good-range-on-your-wireless-netw ork.html
Another thing to try - Go into your router security settings and change from WEP to WPA with AES.
How to Quickly Fix iPad 3 Wi-Fi Reception Problems
http://osxdaily.com/2012/03/21/fix-new-ipad-3-wi-fi-reception-problems/
If none of the above suggestions work, look at this link.
iPad Wi-Fi Problems: Comprehensive List of Fixes
http://appletoolbox.com/2010/04/ipad-wi-fi-problems-comprehensive-list-of-fixes/
Fix iPad Wifi Connection and Signal Issues http://www.youtube.com/watch?v=uwWtIG5jUxE
Fix Slow WiFi Issue https://discussions.apple.com/thread/2398063?start=60&tstart=0
Unable to Connect After iOS Update - saw this solution on another post.
https://discussions.apple.com/thread/4010130
Note - When troubleshooting wifi connection problems, don't hold your iPad by hand. There have been a few reports that holding the iPad by hand, seems to attenuate the wifi signal.
~~~~~~~~~~~~~~~
If any of the above solutions work, please post back what solved your problem. It will help others with the same problem.
 Cheers, Tom

Cannot connect to internet after ios7 grade

After updating my ipad to IOS 7, I got a message "cannot connect to the internet."
From the apple communities, this is a common problem.
I tried completely turning off the ipad - unsuccessful
I tried resetting the network settings (settings, general, reset, reset network settings) - unsuccessful
The next suggestion was a general reset (settings, general, reset, reset all settings), but this would require a full restore afterwards.
Apple support at that stage suggested rebooting the home internet (turning off the modem/router, unplugging it and waiting 10 seconds, replug and turn back on)
Success!
This is an easier option than full reset, and worked in my circumstance

Does your iPad connects to other router/network e.g. Starbucks, Local Library?

I cannot connect to iTunes after new update on iPad air

I Cannot connect to iTunes or App Store after new update and I have tried all the trouble shooting stuff....no good. When I close the app the contents are there but when I tap on them the error message comes up and the app contents goes blank....Help. I need them for my business.
thanks

Hello Deryn340,
Thanks for using Apple Support Communities.
If you're currently unable to connect to either the iTunes Store or the App Store on your iPad, then I'd like you to please follow the troubleshooting steps outlined below.
Troubleshoot issues on an iPhone, iPad, or iPod touch
If you haven't been able to connect to the iTunes Store:
Make sure your date, time, and time zone are correct in Settings > General > Date & Time.
Note: Time Zone may list another city in your time zone.
Make sure that your iOS software is up to date by tapping Settings > General > Software Update(iOS 5 or later) or connecting your iOS device to iTunes and clicking Check for Update on your device's Summary page.
Check and verify that you're in range of a Wi-Fi router or base station. If you're on a device with cellular service, make sure that cellular data is turned on from Settings > General > Cellular.
Note: If connected to cellular data, larger items may not download. You may need to connect to Wi-Fi to download apps, videos, and podcasts.
Make sure that you have an active Internet connection. You can check the user guide for your device for help with connecting to the Internet.
Make sure that other devices (portable computers, for example) are able to connect to the Wi-Fi network and access the Internet.
Try resetting (turning off and then on again) your Wi-Fi router.
If the issue persists, try troubleshooting your Wi-Fi networks and connections.
If the steps above didn't resolve your issue, be sure that your specific alert isn't listed as a possible iTunes Store error. Then, if your issue is still unresolved, follow these steps.
Can't connect to the iTunes Store - Apple Support
Cheers,
Alex H.

Azure Virtual Machine cannot connect to Internet addresses following update on 8/7/2014

I've got a Windows Server 2012 virtual machine running in Azure that prior to system updates that were rolled out last week could connect to Internet addresses such as Yahoo.com without issue. I do not currently have any virtual networks configured for this
Azure tenant nor have I modified any of its network settings, so the VM was making the connections with its default network configuration. On August 7, 2014 I rebooted the virtual machine to apply some required system updates to the operating system, and following
that reboot the VM could not longer connect to the Internet. I am able to lookup domains in DNS, but cannot ping those domains from the command line or open web sites via a browser.
I've released its IPconfig via the command line and rebooted the server multiple times, both from within a remote desktop connection and from the Azure Management Portal, but these actions have not resolved the issue.
Are there additional configuration steps I need to take to reconnect this VM to Internet sites, or has something changed which requires me to make further changes?
Thank you,
John
MCITP and MCTS: SharePoint, Virtualization, Project Server 2007
My books on Amazon: The SharePoint 2010 Disaster Recovery Guide and
The SharePoint 2007 Disaster Recovery Guide.
My blog: My Central Admin.

Just to close this out, I've been able to resolve the issue. It looks like somehow a Windows Update changed the proxy server settings in Internet Options on the server, and that was preventing traffic from successfully leaving the server. Once I removed
that setting, the issue was resolved.
MCITP and MCTS: SharePoint, Virtualization, Project Server 2007
My books on Amazon: The SharePoint 2010 Disaster Recovery Guide and
The SharePoint 2007 Disaster Recovery Guide.
My blog: My Central Admin.

808 pureview cannot connect to internet after 3G c...

Hi!
Today morning i installed this 3G compatibility fix via nokia suit.
After while i noticed, that my phone is unable to connect to internet.
Indicator on the top of the screen shows that 3,5G network is established, but when i open browser (or any other app), it cannot connect.
I tried to reinstall firmware via nokia suit, but no luck.
What should i do now? Any ideas?
Jaak

Try to restart the phone without the SIM card to refresh the SIM settings.

Cannot connect to internet after upgrade from 10.7.4 to 10.7.5

I have a new iMac and connect to internet with a data card (modem) Huawei E303.
It worked fine until after the upgrade from 10.7.4 to 10.7.5.
Now I can connect but there is no measurable signal. Other computers work using the same data card.

Hi, this has worked for a few...
Make a New Location, Using network locations in Mac OS X ...
http://support.apple.com/kb/HT2712
10.7 & 10.8…
System Preferences>Network, top of window>Locations>Edit Locations, little plus icon, give it a name.
10.5.x/10.6.x/10.7.x instructions...
System Preferences>Network, click on the little gear at the bottom next to the + & - icons, (unlock lock first if locked), choose Set Service Order.
The interface that connects to the Internet should be dragged to the top of the list.
For 10.5/10.6/10.7, System Preferences>Network, unlock the lock if need be, highlight the Interface you use to connect to Internet, click on the advanced button, click on the DNS tab, click on the little plus icon, then add these numbers...
208.67.222.222
208.67.220.220
Click OK.

ITunes cannot connect on iPhone after software update

I updated to 5.1.1 yesterday and can no longer use the app store. Getting an error message that my phone cannot connect to iTunes store. Have tried in 3G and wifi. I have also done a hard reset. Help!

No need to duplicate post.

Cannot connect to internet after downloading itunes 7

I downloaded itunes 7, sort all my music on to itunes ready to sync my ipod, try to connect to internet but can't, I had to uninstall itunes to get here to ask why this happens. This has happened twice. (Winamp is alot more flexible with the music)

When you say you can't connect to the internet, do you mean iTunes can't connect but otherwise the internet is OK?
If so the most likely thing is is a problem with your firewall. To test this briefly disable it and see if iTunes can connect. If it can, you need to reconfigure your firewall to allow the new version of iTunes to access the internet.
If you don't know how to do this, which firewall are you using?

Can't connect to internet after software update to iBook G4

I recently installed updates to itunes, quicktime, and the the latest security update for os x 10.3.9 on my iBook G4. Now I can't connect to the internet via my airport express. This happened the last time I updated the software, but I can't remember what I did to fix it. Can anyone help?

I am experiencing the exact same problem with my sister's laptop. iBook G4 10.3.9 I just installed Security update 2007-008 and quicktime update. After the reboot her airport connected to the house router, but will not acquire an IP address. The other computers in the house have remained connected to the router without change. I have a another iBook G4 running on 10.4.11 with the same network settings and I have no trouble whatsoever. I re-enetered the WAP password, reorganized the network connection priorities and repaired permissions, but cannot get the computer to acquire an IP address.
Any ideas??

Can't connect to internet after software update

I just downloaded todays (3-1-2006) security update from apple. Once I rebooted my ibook I wasn't able to connect to the internet anymore. Any ideas why?
My internet connect is still good as I am typing this on my wifes ibook just fine.
thanks

Mike,
Check my post on the "Customization" thread in reply to "Onthegomike." I experienced a similar problem with my desktop and was able to resolve it. I have not yet downloaded the Security Update to my laptop; however, I'm sure I'll have to go through hoops again once I do that. Repairing permissions before and after sometimes helps, however, I often have to go through the disconnection of my airport express before I'm up and running on the iBook.
eMac, iBook Mac OS X (10.3.9) 1 Ghz G4, 768 mb ram

IPhoto not connected to internet after latest update

I just updated my iPhoto last night according to notification. Then, everytime I change desktop, either to LR3 or CS5 and return, iPhoto is no longer connected to the internet therefore, I cannot upload to Facebook, Flicker or email from iPhoto.
I have to close iPhoto, restart iPhoto, then its OK. How silly. It was never that silly before.
What's happened? Who made what change to the good code? Is there a fix?

As a test launch iPhoto with the Option key held down and create a new, test library. Import some photos and test to see if the same problem persists. Does it? If it does then try the following:
1 - delete the iPhoto preference file, com.apple.iPhoto.plist, that resides in your
User/Home/Library/ Preferences folder.
2 - delete iPhoto's cache file, Cache.db, that is located in your
User/Home/Library/Caches/com.apple.iPhoto folder (Snow Leopard and Earlier).
or with Lion and Mt. Lion from the User/Library/Containers/com.apple.iPhoto/
Data/Library/Caches/com.apple.iPhoto folder
3 - launch iPhoto and try again.
NOTE 1: If you're moved your library from its default location in your Home/Pictures folder you will have to point iPhoto to its new location when you next open iPhoto by holding down the Option key when launching iPhoto. You'll also have to reset the iPhoto's various preferences.
NOTE 2: In Lion and Mountain Lion the Library folder is now invisible. To make it permanently visible enter the following in the Terminal application window: chflags nohidden ~/Library and hit the Enter button - 10.7: Un-hide the User Library folder.
Have you rebooted since this problem occurred?
OT

I cannot connect to internet after I update system.

Similar Messages

Maybe you are looking for