A problem has recently arisen on my work laptop. I have been using it for a solid 8 months with no issues, about 2300 hours of use. As soon as we install a new router, i have frequent network disconnects. However, i also installed a few windows updates the same morning. ALL network and router settings are correct.. all other computers on the network work correctly with no issues, and when i am connected to the network all is well. I originally thought that ZoneAlarm firewall and antivirus was causing the issue, but after a full un-installation the problem remains.
After checking out the "Event Viewer", i have found the following information:
FIRST EVENT: 11:00:28 AM "Unused media renderer devices were not removed from the list of devices because required DRM components cannot run while a debugger is attached. Detach the debugger from the machine or from the WMPNetworkSvc service, and then restart the WMPNetworkSvc service."
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I do not believe this event has anything to do with my issue, but due to the less than one second time difference between this event, and the next event which shows my issue i thought i should post it.
All of this happens within 2-3 seconds. As you can see, something is sending a Planned Stop Command to the TCP/IP NetBIOS Helper Service.
There is no information regarding what is sending this stop command to the service, but i believe if i can locate the source this problem will cease to exist. As soon as this service stops, i am disconnected from the network. Shortly after, windows will reconnect to the network. Here is a link to a Microsoft Forum talking about this same issue, although the information i received from this forum did not assist me in my problem solving.Network randomly drops, The TCP/IP NetBIOS Helper service was - Microsoft Community
After looking at the TCP/IP NetBIOS Helper Service in the Services control panel, i see that in the properties information / executable path information it states the following: "C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted" Restricted? Could this be an issue?
Also, on the Logon tab in the properties, the username is Local Service and the password consists of 15 characters, currently i do not use any 15 character passwords, my windows password is 11 characters. What could this password be?
I see that the dependencies to this service are as follows, with the same tree structure as follows:
" 1.Ancillary Function Driver for Winsock 1.NetBT 2.NetIO Legacy TDI Support Driver 3.TCP/IP Protocol Driver
2.TCP/IP Protocol Driver
"
I am not sure where else to trace this problem. I have found no solution, downloads are nearly impossible. I use SyncToy, a microsoft program on all mobile computers that go in/out of the office to backup and keep files up to date from the server, but it is impossible to use this program with this persistent issue, which is a major problem.
It seems like you are experiencing network disconnect issues on your work laptop following the installation of a new router and Windows updates. The events in the Event Viewer indicate problems with the TCP/IP NetBIOS Helper service. Here is a breakdown of the events you described:
First Event (11:00:28 AM):
This event is related to "Unused media renderer devices" and doesn't seem directly related to the network issue.
[]Second Event (11:00:29 AM):
The TCP/IP NetBIOS Helper service was sent a stop control.
The reason specified was "Operating System: Network Connectivity (Planned)."
[]Third Event (11:00:29 AM):
The TCP/IP NetBIOS Helper service entered the stopped state...
It seems like you are experiencing network disconnect issues on your work laptop following the installation of a new router and Windows updates. The events in the Event Viewer indicate problems with the TCP/IP NetBIOS Helper service. Here is a breakdown of the events you described:
First Event (11:00:28 AM):
This event is related to "Unused media renderer devices" and doesn't seem directly related to the network issue.
[]Second Event (11:00:29 AM):
The TCP/IP NetBIOS Helper service was sent a stop control.
The reason specified was "Operating System: Network Connectivity (Planned)."
[]Third Event (11:00:29 AM):
The TCP/IP NetBIOS Helper service entered the stopped state.
Analysis and Suggestions:
TCP/IP NetBIOS Helper Service:
The TCP/IP NetBIOS Helper service is essential for NetBIOS over TCP/IP resolution.
The stop control could be unintentional, causing network disruptions.
Check if any new software or updates are conflicting or interrupting the service.
Service Dependencies:
The dependencies you listed (Ancillary Function Driver for Winsock, NetBT, NetIO Legacy TDI Support Driver, TCP/IP Protocol Driver) are critical for network operations.
Any issues with these services can impact the functionality of the TCP/IP NetBIOS Helper service.
Password Length and Service Configurations:
The password length for Local Service accounts should not directly affect the service's functionality.
The service properties showing a 15-character password might be a system-generated password rather than one you need to interact with.
Restricted Execution:
The mention of "LocalServiceNetworkRestricted" in the service path indicates that the service is running with restricted network access.
This is a standard configuration for many system services.
Recommendations:
[]Troubleshooting Steps:
Check for any recent software installations or updates that could be causing conflicts.
Verify the status of the dependent services and ensure they are running without issues.
Look for any recent changes in Group Policy settings that might affect service behavior.
[]Network Configuration:
Ensure that the router settings, especially related to NetBIOS and TCP/IP, are in line with your network requirements.
Consider checking for any firmware updates for the router that might address compatibility issues.
Further Investigation:
If the issue persists, deeper analysis with network monitoring tools like Wireshark can help identify the source of the stop control command.
You may also consider reaching out to IT support for a thorough investigation if the problem persists. Hopefully, these insights and suggestions will help you identify and resolve the network disconnect issues you are facing on your work laptop. If you need further assistance or clarification on any specific aspect, feel free to ask!
