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My sierra 754s keeps resetting (rewriting) my XP S3 registry

Customer Question
on every boot up to...
My sierra 754s keeps resetting (rewriting) my XP S3 registry on every boot up to TCP parameters I am trying to use to tweak internet optimization! How do I prevent the device from doing this?
Submitted: 4 years ago.Category: Networking
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Answered in 13 minutes by:
6/10/2013
Network Technician: A. Stevens, Network Administrator replied 4 years ago
A. Stevens
A. Stevens, Network Administrator
Category: Networking
Satisfied Customers: 1,557
Experience: 10+ years of Desktop, Laptop, and Server troubleshooting and support.
Verified
Hi,

My name is XXXXX XXXXX I'm here to help you with this issue.

I think the only way you could make this happen is if you adjust the permissions on the specific registry key so that only your user account (or another administrator on the local PC) have the ability to edit the key.

Please be extremely careful with this as it's risky, make sure you have a valid backup of your registry before adjusting the registry.

I would assume that the SYSTEM has some rights to that key, so if you remove the SYSTEM's right and only put your user account or some other admin account the application (or device) shouldn't be able to change it.

Please carefully try that, and please let me know if you have any questions.
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Customer reply replied 4 years ago

OK, I have changed the permission for the SYSTEM "Deny" for the following keys that keep changing:


MaxGlobalTcpWindowSize, TcpWindowSize and MTU for the Sierra Device Interface key.

Network Technician: A. Stevens, Network Administrator replied 4 years ago
Ok good, are you going to test?
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Customer reply replied 4 years ago

I'll test it now and respond, I hope I have not screwed the registry up in the process.

Network Technician: A. Stevens, Network Administrator replied 4 years ago
Ok, as long as you took a backup of the registry you should be fine.

You can also utilize System Restore to reset any changes you may have recently made.
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Network Technician: hongkongpom, Computer Support Specialist replied 4 years ago
hongkongpom
hongkongpom, Computer Support Specialist
Category: Networking
Satisfied Customers: 1,303
Experience: Microsoft Certified Desktop Support Techician since 2007
Verified

Hello and welcome to justanswer.com my name isCustomerXXXXX I'm here to help you with your networking question.

 

Rather than tweaking the registry yourself I recommend & use the free TCP Optimizer which will do all the settings for you.

 

You can download it here

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Customer reply replied 4 years ago

I used SG TCPOtimizer. Already been there and done that.


DRESteve2000 told me to reset SYSTEM permission amd now I have the Black Screen of Death! The following message appears:


 


lsass Application Error


The application failed to initialize properly (0xc0000142)


Click OK to terminate the application.


 


Then nothing!

Network Technician: hongkongpom, Computer Support Specialist replied 4 years ago

Thank you for your reply

 

Sorry but you didn't mention that you had tried TCP Optimizer and I don't know why you're rating me bad service when I didn't give you the registry instruction.

 

If you are now getting a black screen of death and can't boot into Windows in order to do a system restore or registry restore then please press the f8 key when you boot up your computer and choose the "last known good" option and see if you can boot up.

 

Let me know how it goes.

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Customer reply replied 4 years ago

I'm not rating you I'm rating DRESteve2000 with bad service.

Network Technician: hongkongpom, Computer Support Specialist replied 4 years ago

Thank you .

 

Sorry but the rating has appeared next to my entry. I'll alert Customer Service.

 

By the way have you been able to boot up please?

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Customer reply replied 4 years ago

Not yet. I have a dupe copy of the hard drive I am responding to you now.


I am starting the Microsoft instructions on recovering the system from the recovery console.

Network Technician: hongkongpom, Computer Support Specialist replied 4 years ago

Thank you for your reply

 

Before you try the Recovery Console ...

 

If the f8 "last known good" is not working, you can launch System Restore this way:

 

When you press f8, choose safe mode with command prompt

 

1. Your computer will then boot to a command prompt (dos window). C:\....... you want to note what comes after the c:\ because you may need to change the default directory.

 

2. Change the directory by typing.

cd c:\windows\system32\restore\ Then press the Enter key.

 

3. Then press the Enter key.

 

4. Type: rstrui.exe

 

 

A couple of other things come to mind.

 

Are you using a D-Link network adapter?

If so, use the XP device manager to disable the "4X Mode" and see if that stops the MTU from being reset.

 

I assume when you change the MTU with TCP Optimizer you are selecting to change the correct adapter :-)...I only mention this because I made this mistake myself when I first used it.

 

Best regards,

Customer/p>
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Customer reply replied 4 years ago

Using TCP Optimizer and resetting the Rwin and GlobalMax Rwin


resets the TCP optimized values from 130560 130560 to 513960 513960 respectfully on reboot (always). There must be a way of keeping the device from resetting values!


Question unanswered!

Network Technician: hongkongpom, Computer Support Specialist replied 4 years ago

Hello there sorry about the delay in replying. We are in different time zones and I had problems with the Internet here in South Africa last night.

 

Did you see my answer above where I mention the D-Link network adapter?

 

You can check this out by typing devmgmt.msc in the "open" field of start>run

You will see the Device Manager open as shown in the image at the bottom of this answer.

 

Under the devices you will see your Network Adapters. If you expand the entry and you see that you indeed have a D-link adapter, then please double click the entry to show the properties. Look for the the 4x Mode option and disable it.

 

The issue lies in the driver for the adapter which stops the MTU from being change in order to facilitate a faster network data speed.

 

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Customer reply replied 4 years ago

There is no D-link network adapter, only USB\HSPA_DEVICE\6&A081329&0&7&012701004639620, which is the Sierra754S 4g Air Card.


 


Question unanswered.

Network Technician: D.Sandlin, Network Administrator replied 4 years ago
D.Sandlin
D.Sandlin, Network Administrator
Category: Networking
Satisfied Customers: 13,543
Experience: 5 years as a Network Switching Systems Operator In the US ARMY (31F)
Verified
Welcome to JustAnswer..

My name is Dustin and I am a member of the expert community here..

Were you able to get the computer booting again? If so.

To avoid any potential conflict that might cause any more system instability..

In an effort to resolve this issue, I would like to offer you a remote support session.. What a remote support session does is allow me to connect to your and to your computer, and then I can manually see whats happening from here, and then make the neccessary changes while you observe. Our remote software that allows this one time connection is secure, and easy to use.

Would you consider remote support as a viable option to allow us to resolve your issue more expediciously and efficiently?
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Customer reply replied 4 years ago

O.K. however I don't believe it will resolve the adapter problem.

Network Technician: D.Sandlin, Network Administrator replied 4 years ago
Just so were clear..

By adapter problem you mean.. These registry values of MTU=1500, MaxGlobalTcpWindowSize=513920, TcpWindowSize=513920 for your adapter, resetting after every shutdown..

Right?
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Customer reply replied 4 years ago

Yes

Customer reply replied 4 years ago

My window of resolution is closing since I am signed up for the 7 day free trial. We are going out of town early tomorrow and won't be back until the trial runs out. If you want to scan my system, do it now otherwise I shall call for a refund.

Network Technician: D.Sandlin, Network Administrator replied 4 years ago
I personally am going to have to opt out at this time..

The stability of my router and internet connection hasnt allowed me to conduct the remote support sessions I would like to.. There was a large Stormcell that came through Northern Indiana, and Im going to have to replace my modem and router first thing in the morning.. So today wont work for me, as running off of a phone hotspot is not conducive to a strong connection for remote support.

I will opt out, and if no one else steps in to help you this evening, send a message and I can submit the refund request to customer service this evening on your behalf.

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Customer reply replied 4 years ago

Yes, send the refund request. I appreciate your time.


 


Carey

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D.Sandlin
D.Sandlin
D.Sandlin, Network Administrator
Category: Networking
Satisfied Customers: 13,543
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