windows - My usb 3g data card sometimes switches to 2g but never switches back without plugging it in and out again

Is there a way to automate the redial process once that happens?

Answer

[PowerShell] disable+enable all connections

The most elegant method to reset all connections is maybe PowerShell. Save this as .PS1 script and execute it with admin rights.

Get-WMIObject Win32_NetworkAdapter -Filter "NetConnectionID LIKE '%'" | %{
   netsh interface set interface "$($_.NetConnectionID)" DISABLED
   Start-Sleep 3
   netsh interface set interface "$($_.NetConnectionID)" ENABLED
 }

Source

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[CMD] disable+enable connection

Save this in a batch and execute it as admin where stands for the interface you want to disable and re-enable.

netsh interface set interface  disabled  
ping -n 5 127.0.0.1 > NUL
netsh interface set interface  enabled

• To get the correct interface name, type netsh interface show interface


• Wrap the interface name with quotation marks when it contain blanks (otherwise not)


• the ping command just adds a small break of 5 sec to see the effect in Network and Sharing center

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[CMD] reconnect mobile connection

(thx @laggingreflex)

netsh mbn connect interface= connmode=name name=