Networking

Ask Computer Networking Questions and Get Answers ASAP

Ask a Computer Expert,
Get an Answer ASAP!

Networking

How to get resolution for the error 651 on Window 7

Customer Question
?...
How to get resolution for the error 651 on Window 7 ?
Submitted: 7 years ago.Category: Networking
Ask Your Own Networking Question
Answered in 5 minutes by:
1/24/2010
Network Technician: DavidM, Network Engineer replied 7 years ago
DavidM
DavidM, Network Engineer
Category: Networking
Satisfied Customers: 66
Experience: 4 years networking experience.CCNP,CCNA,A+,N+,MCTS,MCITP
Verified
hey there

this link gives a number of troubleshooting steps to resolve this issue:

http://ghost301tech.wordpress.com/2009/10/29/error-651-in-windows-7-a-killer-for-internet-connectionvpn/

this also:

http://social.answers.microsoft.com/Forums/en-US/w7network/thread/9dad24b2-52fb-47c8-b65e-dac29b54cfd1

it seems that there is actually no formal fix, but if you look at the first link there are approx 10 different things to try to clear this error. I would work through them from the beginning and hopefully it'll clear the problem.

i would also suggest making a system restore point, in case you need to roll back to your previous working config.

see:

http://www.howtogeek.com/howto/3195/create-a-system-restore-point-in-windows-7/

good luck!
Ask Your Own Networking Question
Customer reply replied 7 years ago
Hi,

I am unable to connect to this site

http://ghost301tech.wordpress.com/2009/10/29/error-651-in-windows-7-a-killer-for-internet-connectionvpn/

it took more than 5 minutes of waiting and then the link is broken. I am in China


-Robert
Network Technician: DavidM, Network Engineer replied 7 years ago
here it is:

Update (31.12.2009): It can easily see that there are a lot of Windows users have been bugged by this error (this post has occupied one third of the total visits of my blog), and I hope this article can help to solve your problem. But please be aware though, all the solutions were gathered from internet, such as article, forum etc., and I can’t guarantee that they will work for you. If they did, you are always welcomed to reply and let people know what have you done to solve your problem. Else, I am sorry that I couldn’t help you, perhaps you can ask for help from your ISP. I have updated several more possible solutions based on some readers’ replies.

You try to initiate the broadband dialer in Windows 7 and only found that it doesn’t work and returned with an error 651: Your modem (or other connecting device) has reported an error. And you had tried to restart your PC, your router, your modem etc. and the problem doesn’t go away. And eventually you want to bang your head to the wall because you can’t solve the problem, nor you can find solution online because you are not able to get online!

Same thing happened to me last few days which caused the update of the blog delayed. During some normal surfing, I found out that the connection was hang, thus I just disconnect the internet connection and try to reconnect. But hey, I can’t connect back anymore, with the error 651 while everything (hardware, Windows etc.) were ok. So for a few days, I can’t update my blog and I was trying to find solution for it in the office (don’t tell the boss, won’t ya?).

What I have found?

It is not hard to find the users that have the same problem as mine on the internet (you might want to praise internet a little bit?), but surprisingly this error seems bugged some Windows 7 (Beta or even RTM) users and it seems there is no official solution for it.

There is a lot of workarounds, suggested, of course, by other users since I mentioned there is no official fix for it. If you have this problem in Windows 7 (or may be Windows Vista/XP as some of the solutions works on them), check out what I have found:

1. Replace the raspppoe.sys in Windows/System32/Drivers directory. (High Risk!) source

Some of the user claimed that by replacing the raspppoe.sys in Windows 7 with the Vista one seems to be able to solve the problem. However, it’s a no for me. It doesn’t solve my problem as after replacement, it keep giving me error 797. And I myself doesn’t think that the error was caused by it because this method only works for those computers that equipped with Windows 7 and already have this error 651, which is not my case.

Quoted from Windows Reference.com:

The RAS PPPoE driver file “raspppoe.sys” found under c:\windows\system32\drivers folder seems to be the root cause of the problem. Fortunately, we can workaround the problem simply by renaming the original raspppoe.sys file to something like “raspppoe_orig.sys” copying a working file from a Windows Vista system. If you do not have access to a Windows Vista system. click here to download raspppoe.sys file (unzip).

I do not suggest for the replacement for the system file as it might cause even more problems if you doesn’t handle it well. However, if you insists of trying your luck, go ahead. If you having problem in replacing or renaming due to the error of TrustedInstaller thingy, check out this link. Take over the ownership of the file and replace it with the Vista one.

2. Uninstall Microsoft Virtual PC 2007

Over the replies in the windowsreference.com page, some users suggested that by uninstalling Microsoft Virtual PC 2007, the problem seems to be fixed. I uninstalled my Virtual PC which comes with Windows XP mode that exclusively for Windows 7, but it doesn’t solve the problem as well. If you have Microsoft Virtual PC 2007 installed, go ahead uninstall it and see if the problem go away from you.

3. Disable IPv6 for your connection source

I also found that some users claiming that by turning the IPv6 for your dialer, the problem can be solved. It is not in my case either.

4. Uninstall modem source

I am not sure which Windows it can be applied, but I supposed this is for dial up modem, but nevertheless, it still linked with error 651, and obviously, it can’t be applied in my problem since I am not using dial up modem.

5. Disable Windows Vista/7 auto-tuning feature source

One user suggest that the auto-tuning in Windows Vista/7 has broke down and he suggested a workaround to disable it prior to firmware upgrade for your router. This seems promising but yet, it doesn’t solve my problem either, as I am not using router.

6. Disable some special function of your LAN card source

The user over the Technet which have the same problem as mine has tried to turn off some special feature in LAN card such as Interrupt Moderation etc. and it seems able to solve the problem for temporary. But again, not for me.

7. Reinstall LAN/NIC card drivers

Most common suggestion by the community but still, it’s not the case for me. Both of my LAN card working well.

8. Reinstall networking in Windows Vista/7 source

Some says that by uninstalling the networking in Windows seems to make the problem go away. Again you know it doesn’t work for me.

9. Perform clean boot source

The moderator over Technet suggested to a user that having the same problem to perform clean boot to find the root of cause, and replace the raspppoe.sys file as well. Too, not working for me. None of the Windows/Non-Windows services caused the problem.

10. Uninstall Sun’s Virtual Box

One of the reply saying that it solved the problem by uninstalling Sun’s Virtual Box, along with Microsoft Virtual PC. I am not sure but perhaps there might be some conflict between the virtual network driver with the real one. You can give it a try if you had any virtualization software installed in your PC.

11. Recreate Dialer and restart the ADSL modem/router

This perhaps works if the error occurs when something hanged during the connection. Remove the dialer and create a new one, then restart your PC. Turn off the ADSL modem/router, wait for more than 30 seconds, then turn it on. Then try to connect.

12. Avoid sudden connection cutoff by software (preventive method)

This is from my own experience, I not sure how and why, but it just meant for sharing. One day, I had my connection up, and I install Norton Internet Security without disconnecting the broadband. As usual, a Internet Security Suite will have bunches of modules to protect your PC through networking security, so I did some necessary network scanning with it without turning my broadband off. Then all of the sudden, my broadband disconnected and when I try to reconnect, error 651 occurs again. Fortunately it doesn’t stay long as I managed to connect after waiting for a few minutes without doing anything, so I have learnt that when you know some software will going to cutoff your internet connection due to some reason, disconnect it first before proceeding.

Conclusion

With frustration of course, I ranged up my ISP (TMNet, Streamyx, Malaysia) for generating a technical report to solve the problem which I expect they will send me technicians to check for the problem as I suspected it is hardware problem (modem, LAN card etc.). But out of surprises, my connection is back without error 651 anymore. Then only I realized that it can be caused by my ISP side. I am yet to receive their call which I am going to enquire what happen to my broadband, but I am glad that the problem has solved.

So, if you had tried everything that I suggested, try to contact your ISP service centre, they might be able to solve for you. Good luck!

 

Ask Your Own Networking Question
Customer reply replied 7 years ago
David,

I did try with Raspppoe.sys before, it did not work for me, with your list of suggestions, I tried to disable IPV6, however, it did not work for me. I tried with connecting to the TP-Link router, I also tried to connect to the wall without router.
The rest of suggestion does not apply to me, the service man here does not know how to handle window 7
Network Technician: DavidM, Network Engineer replied 7 years ago
did you uninstall virtual pc 2007?

also uninstall sun virtual box.

try that and let me know if it works..
Ask Your Own Networking Question
Customer reply replied 7 years ago
I don't recall I have these two, any way, where can I find these two? I checked form control panel, in the program list, it did not have it
Network Technician: DavidM, Network Engineer replied 7 years ago


Go to Control Panel\Programs\Programs and Features and youl see Virtual Windows XP listed. Uninstall that.
Then on the left panel click on view installed updates and uninstall Windows Virtual PC which is listed at the bottom.


if you have virtualbox type virtualbox in the start menu search box. if it doesnt come up then you havent got it.. try these methods and let me know what happens..
Ask Your Own Networking Question
Customer reply replied 7 years ago
I don't have Virtual Windows XP neither virtualbox
Network Technician: DavidM, Network Engineer replied 7 years ago
ok, download this file and try the file replacement again:

http://www.roboxpress.com/wp-content/uploads/2009/05/raspppoe.zip


This problem is due to problem in windows 7 files mainly with PPPoE driver file raspppoe.sys you can find this file at c:windows > system32 > drivers folder the main problem is due to the root cause . but modifying that file you can solve your problem .To solve this problem simply renam the original raspppoe.sys file to something different else copying a working file from a Windows Vista system.
Ask Your Own Networking Question
Customer reply replied 7 years ago
This is the same as what I did before, I will try it again and let you know the result. To do that, I need to get off line from my wireless card and re-connect my internet cable back, will come back here to update you
Network Technician: DavidM, Network Engineer replied 7 years ago
ok, this is the Windows Vista file though and not Windows 7, I don't know if you tried Vista or 7 file..
Ask Your Own Networking Question
Customer reply replied 7 years ago
It is Window 7
Network Technician: DavidM, Network Engineer replied 7 years ago
Yes, ok. try that as all the forums point to using a Vista file on your Windows 7 machine.

try it and let me know how you go.
Ask Your Own Networking Question
Customer reply replied 7 years ago

I tried with two, one is Local Area Connection while the other one is BroadBand (PPOE), both were not working with different result

1. Local Area Connection (Right click on icon from network connection
to enable it)
(This is the LAN device information
Realtek RTL8168C(P)/8111C (P)
Driver Date 5/14/2009
Driver Version 7.2.1127.2008)


Wall Plug: PC ! Unidentified network X internet
Router: PC Network 9 X internet


2. BroadBand (PPOE)
Set up a connection or Network -> connect to the Internet->Create
a new connection->BroadBand (Ppoe)

Wall plub: Connection failed with 797
Router: Connection failed with 797

Network Technician: DavidM, Network Engineer replied 7 years ago
try this:

open a web browser:

Tools, Options, Connectivity and tick "do not dial a connection".
Ask Your Own Networking Question
Customer reply replied 7 years ago
Failed the same as before
Network Technician: DavidM, Network Engineer replied 7 years ago
ok, well I am sorry but i've done all I can.

good luck! you could try contacting Microsoft directly? or keep googling the issue to see if they push a patch for it..
Ask Your Own Networking Question
Customer reply replied 7 years ago
Thanks, XXXXX XXXXX time
Network Technician: DavidM, Network Engineer replied 7 years ago
no problem
Ask Your Own Networking Question
Customer reply replied 7 years ago
I am satisfied with your service and hope it has solid solution for this problem
Network Technician: DavidM, Network Engineer replied 7 years ago
cool, thanks, XXXXX XXXXX good one
Ask Your Own Networking Question
Customer reply replied 7 years ago
Sorry, I can not accept any of the answer which provided to me, since it does not work for me. Hope we have better luck next time
Network Technician: DavidM, Network Engineer replied 7 years ago
Yea I understand that. You won't find a fix for this issue since one doesn't exist.
Good luck
Ask Your Own Networking Question
Ask DavidM Your Own Question
DavidM
DavidM
DavidM, Network Engineer
Category: Networking
Satisfied Customers: 66
66 Satisfied Customers
Experience: 4 years networking experience.CCNP,CCNA,A+,N+,MCTS,MCITP

DavidM is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

I am very happy with my very fast response. Eric is very knowledgeable in the subject area. Thank you!

RPAustin, TX

My Expert answered my question promptly and he resolved the issue totally. This is a great service. I am so glad I found it I will definitely use the service again if needed.

One Happy CustomerNew York

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

< Previous | Next >

Meet the Experts:

Claws224

Claws224

IEEE Network Engineer

1,256 satisfied customers

IEEE, Microsoft

Kevin

Kevin

LAN/WAN Specialist

1,165 satisfied customers

Certified MCSA and MCP Network Administrator with over 20 years of PC experience.

Byron

Byron

PC Support Tech

640 satisfied customers

CCNA, A+, MCSE 11 years at a large law firm.

Eric K.

Eric K.

Network Administrator

510 satisfied customers

13 years of desktop, server and network support experience

Mr. Clark

Mr. Clark

Network Engineer

510 satisfied customers

Computer Business Owner / Former DoD Network Specialist

Chris L.

Chris L.

Support Specialist

447 satisfied customers

Certified Networking expert with over 10 years experience.

A. Stevens

A. Stevens

Network Administrator

428 satisfied customers

10+ years of Desktop, Laptop, and Server troubleshooting and support.

< Previous | Next >

Related Networking Questions
Lose internet connection constantly on my Dell Inspiron
Lose internet connection constantly on my Dell Inspiron i5-6400, 8gig. Message says Windows 10 cannot detect network proxy settings. Chrome, ie browser's affected… read more
Thomas
Thomas
IT Manager
Associate Degree
983 satisfied customers
I have recently installed a Samsung 1T SSD and am running
I have recently installed a Samsung 1T SSD and am running Windows 10. Previously I was running from an HDD with Windows 7. I have a LAN with an Epson printer/scanner that is connected now to my LAN. I… read more
Dan
Dan
IT/Broadcast Engineer
Bachelor\u0027s Degree
508 satisfied customers
My LAN network is working but I cannot connect to the
Hi! My LAN network is working but I cannot connect to the internet and I can't get service on my bios TV … read more
Suhasini Velu
Suhasini Velu
Bachelor of Engineering
142 satisfied customers
On my new fios router/modem is the coaxial knob and then 5
on my new fios router/modem is the coaxial knob and then 5 eithernet connects. one Ethernet is white says LAN, the other 4 are yellow says WAN. what is the LAN for? does it replace the coaxial with a … read more
Sheri
Sheri
Bachelor\u0027s Degree
102 satisfied customers
I replaced my wireless router and my lan has a new name. My
I replaced my wireless router and my lan has a new name. My netgear wireless extender does not recognize it. How can I resolve this? … read more
Mr.Med
Mr.Med
943 satisfied customers
I need to connect my new blue ray player to my router so I
Hello! I need to connect my new blue ray player to my router so I can get online with it. The directions say to use a LAN cable. Is that the same thing as an ethernet cable?… read more
Joe AV
Joe AV
48 satisfied customers
I have a windstream wifi router/modem with 4 lan ports. All
I have a windstream wifi router/modem with 4 lan ports. All the ports are full and I need more lan ports. Locally, I can't find a non wifi switch to buy but I have a couple of old linksys wifi switche… read more
Richard
Richard
IT Manager
IT Manager, Consultant
3,281 satisfied customers
I am trying to us the wake on lan feature to turn on another
I am trying to us the wake on lan feature to turn on another computer form sleep. But the Magic packet does not reach the other computer. … read more
Kris R
Kris R
IT Manager
Computing
2,652 satisfied customers
No wifi in house, arri LAN keeps fklas, flashly, not that I
no wifi in house, arri LAN keeps fklas JA: What kind of computer do you have? Customer: flashly JA: Have you installed any updates recently? Customer: not that I know of\ JA: Anything else you want th… read more
Kris R
Kris R
IT Manager
Computing
2,652 satisfied customers
All of a sudden my wireless lan adapter stopped working,
all of a sudden my wireless lan adapter stopped working … read more
Jason Jones
Jason Jones
AAS Information Technology
6,320 satisfied customers
I was checking my modem LAN Device Session Log and found an
I was checking my modem LAN Device Session Log and found an odd entry. "Static IP 192.198.254.78". Through trial and error, I found that this would launch when I logged in to Outlook at a company in T… read more
UranIT
UranIT
IT Consultant, Network and System Admin
Associate Degree
569 satisfied customers
I have a tablet with a hot spot does that work for a lan
I have a tablet with a hot spot does that work for a lan feature? … read more
Damian Costa
Damian Costa
Owner
Computer Network System Engineer
43 satisfied customers
I have a Dell SonicWall Firewall. I need to mirror my LAN
I have a Dell SonicWall Firewall. I need to mirror my LAN traffic (From X0) to another local interface (X2). I think the mirroring that I have turned on now is mirroring both LAN (X0) and WAN (X1) tra… read more
bbao
bbao
Freelance IT Consultant
74 satisfied customers
I am trying to sort my Foscam IP camera. It's works on LAN
Hi. I am trying to sort my Foscam IP camera. It's works on LAN and also on wifi, but I cannot make it work via the Internet. Everything is set up as per instructions with a static IP and portforwardin… read more
Quiksilver07070
Quiksilver07070
Remote Technical Support
Associate Degree
68 satisfied customers
I have a small Lan network, using an Apple Airport Time
I have a small Lan network, using an Apple Airport Time Capsule router to link my iMac and Dell desktop computers with my Canon MX920 printer. The Dell uses a Windows 7 operating system. We have also … read more
bbao
bbao
Freelance IT Consultant
74 satisfied customers
I have a sound mixer that has an ethenet and supports LAN. I
hi. I have a sound mixer that has an ethenet jack and supports LAN. I am trying to connect it to a belkin 450N router and use it to be able to connect my router wifi. When I plug in my router, it star… read more
Byron
Byron
PC Support Tech
Bachelor's Degree
640 satisfied customers
We have a BDP-S390 Blu-ray with built-in LAN. When we try to
We have a BDP-S390 Blu-ray with built-in LAN. When we try to access Netflix we get the message "A network error has occurred. Do you want to set the internet setting?" When I do the internet setting i… read more
p0llinate
p0llinate
Bachelors of Science
14 satisfied customers
I've an mx850 installed on a USB line and shared over a lan.
I've an mx850 installed on a USB line and shared over a lan. I've experienced print problems apparently in the driver, so am doing a reinstall. This time using downloaded driver (not Microsoft's choic… read more
hongkongpom
hongkongpom
Computer Desktop Support
Associate Degree
286 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x