Windows 10: External device using TCP connection to service I coded stopped connecting

Hi,Long story short.- have hardware device that connects with a TCP Telnet connection- wrote windows app to verify connectivity and operation - worked fine for months- converted app to service - worked fine for months- a few days ago the external device stopped connecting to the service- stopped the service and ran the app - device connected without issue- checked the firewall settings - all good.- stopped the firewall - no changeI am not aware of any changes that would have caused this. How about a Windows 11 update?Any ideas?Frederick

:)

 

Text Services Framework not running and no connection to Internet

Hi Alrescha,

It is possible that the
system files
and
components were corrupted during the installation or update. We suggest
that you perform these methods of troubleshooting
and check if there are any
changes:

For network connection issue:

Method 1: Reset TCP/IP

To do this, follow these steps:

• 
  Run
  Command Prompt
  as
  Administrator.
  
• 
  Run
  this command:
  
  • 
    netsh int ip reset
    and hit
    Enter.
    

Exit
Command Prompt
and
monitor your Network Connection.

Method 2: Disable auto turn-off of Network device.

Go to
Network and Sharing Center. At the
right pane, click
Change adapter settings.
Right-click
on your
connection/network name
and go to
Properties.Click
the
"Configure..."
button and go to
Power Management
tab.Uncheck/disable
the
radio button
for
"Allow this device to turn off this device to save power". And then,
Restart the PC(Important).

Method 3: Reconfigure TCP/IP

To do this, follow these steps:

• 
  Run
  Command Prompt
  as
  Administrator.
  
• 
  Run
  these following commands:
  
  • 
    netsh int tcp set heuristics
    disabled
    
  • 
    netsh int tcp
    set global autotuninglevel=disabled
    
  • 
    netsh int tcp set global
    rss=enabled
    

For keyboard issue:

Method 1:
Run SFC Scan.  

SFC
will
scan
and
run
an
automatic repair
to any
corrupted system files
that it will detect. We suggest that you perform it twice. To run an
SFC scan, follow these steps:  

• 
  Run
  Command Prompt as Administrator.  
  
• 
  Type
  sfc /scannow
  and hit
  Enter.   
  

Note:
Kindly run
SFC twice or thrice and check for results before you proceed to the next method.

Method 2: Reset Windows Update Components.

Resetting your
Windows Update Components
will allow you to
install
the update again including the
Text Services Framework. To do this, refer to
How do I reset Windows Update Components.

 

Cortana Won't Connect

Hi,

To better assist you, what are the troubleshooting steps have you done so far? Have you tried
resetting and re-configuring
your
TCP/IP Settings? If not, we suggest that you do so. Kindly perform these
methods of troubleshooting and check if Cortana can connect to the internet after performing these methods:

Method 1: Reset TCP/IP

To do this, follow these steps:

• 
  Run
  Command Prompt
  as
  Administrator.
  
• 
  Run
  this command:
  
  • 
    netsh int ip reset
    and hit
    Enter.
    

Exit
Command Prompt
and
monitor your Network Connection.

Method 2:
Reconfigure TCP/IP

To do this, follow these steps:

• 
  Run
  Command Prompt
  as
  Administrator.
  
• 
  Run
  these following commands:
  
  • 
    netsh int tcp set heuristics
    disabled
    
  • 
    netsh int tcp
    set global autotuninglevel=disabled
    
  • 
    netsh int tcp set global
    rss=enabled
    

Update us on how it goes.

Regards.

 

Excessive TCP connections open

Most of those are not active connections, they're just listening. Lots of internal services used by windows communicate with each other via tcp/ip and thus they are constantly listening because they need to be able to hear communications.

You have a few apps that have open connections.

AdAppMgr - this is an Adobe tool that manages Adobe CC Online apps.
agent.exe - this could be any of a number of apps, but is probably fine.
dashost.exe - this is the mail synchronization app
Fitbitconnecthost - this should be obvious.. you've got a fitbit device and synchronize it with your internet account.
officeclicktorun - this is part of office365
x-lite - also should be obvious.. you have a VOIP softphone installed and running

pretty much everything else is internal services listening.