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How to fix error 21 (Network connection changed)

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My canon pixma printer is showing error code 2 140 21 while scaanning???


i got this error while trying to scan. my ink cartridges were out of the printer (i was going to get them refilled). i stuck the cartridges back in and the scanner worked again.

Jan 20, 2012 | Office Equipment & Supplies

Tip

How to Troubleshooting Network




Here you will learn network troubleshooting tips, fix tcp/ip errors, tcp/ip settings, internet connectivity errors, how to fix pc errors, lan connectivity issues, traceroute and ping commands. Whether your operating system is Windows or Linux network problems are likely to arise. Many times the network problems arisee due to improperly configured TCP/IP settings. Following is the basic checklist to identify and troubleshoot the basic networking errors.
1. First of all you should learn what stopped working server or client computer also see if the outage affecting the other computers or only one.
2. If you server stopped working you should inform the users of the server and you should start working on fixing the error.
3. If a single client computer stopped working or disconnected from the network, ask the user of that computer that what recent changes cause the server to stop working such as newly installed software or games, service packs, internet software, new hardware or any other thing.
4. Check the physical network connectivity. The most network problems arise due to the physical layers failure.
5. Check all the network cable connections. You can start at the NIC and check if the green light is blinking then check the hub and see if the computer is getting the link across the cable.
6. Get a cable tester to check the connectivity of the cables.
7. Finally start pinging the network both Windows and Linux have the PING command. You can use ping command in this way start > Run > cmd > type "ping" then IP address of the other computer

on Mar 25, 2010 | Computers & Internet

1 Answer

I am unable to connect to the internet on my playstation 3. The error message says 'playstation network currently under maintenece'. Its been like this for almost a month. Is there a fix?


No fix, there was a major security breach on the PSN (Playstation Network) and they are currently down till it is fixed. They are hoping for a May 31 relaunch. Keep up to date with all the latest info at this link:
http://blog.us.playstation.com/2011/04/21/latest-update-on-psn-outage/
Good Luck and vote for me if this answer helped you out. Cheers.

May 14, 2011 | Video Game Consoles & Games

1 Answer

Out of no where im having connection problems. When i go 2 sign into PS network it says that "An error has occurred. You have been signed out of playstation network. ' whats goin...


Hi there, unfortunately there is nothing you can do at the moment. The playstation network is down worldwide. We just have to wait till sony fixes this http://kotaku.com/#!5794265/is-the-entire-playstation-network-down or http://kotaku.com/#!5794440/sony-playstation-outage-likely-to-last-days or http://blog.us.playstation.com/2011/04/21/latest-update-on-psn-outage/ or http://blog.us.playstation.com/2011/04/20/update-on-psn-service-outages-2/
Check those links for updates. Hope that helps :)
Please rate highly if it answers your question.

Apr 22, 2011 | Sony Playstation 3 (PS3) Console

1 Answer

I can not sign into play station network. internet connection and IP address are good. when I try to sign in it will say An error has occurred. You have been signed out of play station network. (80710A06)...


Happening all over the world
Hi there, unfortunately there is nothing you can do at the moment. The playstation network is down worldwide. We just have to wait till sony fixes this http://kotaku.com/#!5794265/is-the-entire-playstation-network-down or http://kotaku.com/#!5794440/sony-playstation-outage-likely-to-last-days or http://blog.us.playstation.com/2011/04/21/latest-update-on-psn-outage/ or http://blog.us.playstation.com/2011/04/20/update-on-psn-service-outages-2/
Check the links for updates

Apr 22, 2011 | Sony PlayStation 3 (120 GB) Black Console

2 Answers

My ps3 won't let me sign in to the network. The Internet browser works but when I try to sign in it gives me an error code 80710A06. Can you help please?


Hi there, unfortunately there is nothing you can do at the moment. The playstation network is down worldwide. We just have to wait till sony fixes this http://kotaku.com/#!5794265/is-the-entire-playstation-network-down or http://kotaku.com/#!5794440/sony-playstation-outage-likely-to-last-days or http://blog.us.playstation.com/2011/04/21/latest-update-on-psn-outage/ or http://blog.us.playstation.com/2011/04/20/update-on-psn-service-outages-2/
The reason your browser will still work is because it doesn't require the playstation network to run, it only requires your internet connection to be working. The signing in requires a connection between your connection and sony's servers.

Apr 22, 2011 | Sony Video Game Consoles & Games

1 Answer

Error code cannot connect to internet


Hi there, unfortunately there is nothing you can do at the moment. The playstation network is down worldwide. We just have to wait till sony fixes this http://kotaku.com/#!5794265/is-the-entire-playstation-network-down or http://kotaku.com/#!5794440/sony-playstation-outage-likely-to-last-days or http://blog.us.playstation.com/2011/04/21/latest-update-on-psn-outage/ or http://blog.us.playstation.com/2011/04/20/update-on-psn-service-outages-2/
check the links for updates

Apr 21, 2011 | Sony Playstation 3 (PS3) Console

1 Answer

Im trying to connect to Netflix on my ps3 but when i try to sign in, an error comes up which states to sign from play station network, i tried that but the same error always come, unable to connect, and i...


Hi there, unfortunately there is nothing you can do at the moment. The playstation network is down worldwide. We just have to wait till sony fixes this http://kotaku.com/#!5794265/is-the-entire-playstation-network-down or http://kotaku.com/#!5794440/sony-playstation-outage-likely-to-last-days or http://blog.us.playstation.com/2011/04/21/latest-update-on-psn-outage/ or http://blog.us.playstation.com/2011/04/20/update-on-psn-service-outages-2/
Those links should help with more info

Apr 21, 2011 | Sony Playstation 3 (PS3) Console

1 Answer

Archos 5 wifi connecting problems


"hi have an archos 5, when trying to connect to wifi, keep getting "wifi error .(0)" or "wifi error .(21), i know i am in a wifi network area as my laptop and palm pda can connect ok, however the archos seems to keep scanning for networks until it eventually switches off, any suggestions would be greatly appreciated"

i have the same problem...PLEASE is there ANYONE who knows how to solve this issue.. my email is hbhuralal@gmail.com i need desperate help..

thankyou

Jan 06, 2009 | Computers & Internet

1 Answer

Same Problem Again - Mega Raid.... Unknown Error


Hi

The title of your post suggests that you have "Maga RAID" errors. Maga RAID messages would be in line with issues on the LSI PERC sub-system.

However, the extract posted in your suggests network problems.

Any number of physical to driver and configuration issues can result in network problems.

Try the basic checks;
1. Change or try a known patch cable
2. Run "ping" test to a known good system connected to same network switch or direct connect with a "cross-over" cable and check for dropped connections.
3. Is the NIC and switch set to Auto-Negotiation or static at 10, 100 or 1000Mbps speed
4. Can you try another switch
5. Check and load correct or latest manufacture's drivers

Reply with more info.

Mike

Jan 23, 2008 | Dell PowerEdge 1800 Server

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