About software, technology and random things


Internet Connection Reset on the Speedport W 722V (Type B)


Since I've recently found out that my new router, the T-Home Speedport W 722V Type B, apparently does not support automatic disconnecting at a specific time (in order to circumvent the 24-hour connectionreset by my ISP), I took a route that my good friend Pool has been using for quite some time.

It is a batch script, so in order to use it, you have to be able to execute it.

On a side note, the Type A model of this router does support automatic disconnecting! Make sure you choose "Other provider" when you're in the internet configuration menu in order to be able to see the setting for that. The "T-Online" option sadly does not show it.

What you need:

  • A Windows machine that is running at the given time (has to execute the script)
  • cURL for Windows, preferably the win32-ssl-sspi version (download page). win32-ssl should be fine as well.
  • Configure a scheduled task for the script, which is not covered in this guide (but quite simple. Just make it execute the script.)

The batch script:

REM Speedport W 722V Type B Internet Reset Script v1.0 - 2010-04-29
REM Written by pl (
REM Works with the T-Home Speedport W 722V Type B home router.

REM Adjust these variables to your own ones!
SET PWD=12345678
SET COOKIEFILE="routercookies.txt"

@echo off
curl -k https://speedport.ip/cgi-bin/login.cgi -d "pws=%PWD%" -e "https://speedport.ip/hcti_start_passwort.stm" -c "%COOKIEFILE%"
curl -k https://speedport.ip/cgi-bin/status_startseite.cgi -d "connect=0&disconnect=1&block=0&nonblock=0&abc=0" -e "https://speedport.ip/hcti_startseite.stm" -b "%COOKIEFILE%"
curl -k https://speedport.ip/cgi-bin/status_startseite.cgi -d "connect=1&disconnect=0&block=0&nonblock=0&abc=0" -e "https://speedport.ip/hcti_startseite.stm" -b "%COOKIEFILE%"
curl -k https://speedport.ip/cgi-bin/logoutall.cgi -e "https://speedport.ip/hcti_startseite.stm" -b "%COOKIEFILE%"

What this script does:

It logs on the web administration interface, uses a hidden option to disconnect the internet connection, then uses a hidden option to connect, and finally logs out again.

Because the cookie is cached in a text file, it is deleted at the end of the script.

Additional information:

The lines beginning with REM are comments, so you might as well leave them out.

If you run the script, make sure that you either have the cURL directory in the PATH environment variable, or that you set its folder as the working directory, so that it can find the curl.exe and actually execute the (central) steps of the script.

I'm sure that this script can be optimized (probably a lot), but for now, it's doing the job.

I hope that was of any help to you, and thanks for reading! 🙂


OpenVPN on Windows Vista / 7 – Ping says: TTL expired in transit

Hi there!

When I set up my VPN with OpenVPN yesterday, I found out about a little difficulty under Windows Vista and 7. Thankfully it was not that much of a hurdle as the UAC was the reason for this bug just like for a series of other bugs with different software I experimented with over the last few weeks. Nevertheless I hope that this piece of information helps you get rid of the following problem.

If you have set up your VPN and got it running without any major problems, and everything seems to be running just fine (connecting works), but you still can't establish connections to the other machines, you might find that pinging returns the error message "TTL expired in transit". This is due to the fact that Vista (or Windows 7) needs administrator privileges to adjust your computer's settings properly in order to function when you've connected to the VPN successfully. I think it's about the route.exe process, but I'm not 100% sure.

Windows Vista and 7 have the equally famous as infamous UAC (User Account Control) that prevents even administrator privileged accounts from executing programs with administrator rights by default. In order to enable these rights you have to right-click the program (or program shortcut) and click on "Run as administrator" next to the yellow-blue shield if it does not run with administrator rights exclusively anyway (in which case you'd see the yellow-blue shield in the bottom right corner of the program icon itself and would be asked for administrator privileges automatically when you launch it as any other program).

Please note that the following steps are for on-demand OpenVPN connections. For automatic connections, read further below.

OpenVPN on-demand connection

So what you need to do is launch the connection with UAC. But how do you do that if you usually launch OpenVPN connections with a right-click and "Start OpenVPN on this config file"? Even creating a shortcut to the .ovpn file doesn't give you the "Run as administrator" option.

A simple solution is to create a batch file that simply changes to the work directory and executes .ovpn with the openvpn.exe.

Example file "ovpn_connection1.bat":

@echo off
cd \Programs\OpenVPN\config-ondemand\
D:\Programs\OpenVPN\bin\openvpn.exe D:\Programs\OpenVPN\config-ondemand\connection1.ovpn

This batch file has the following parameters/assumptions:

  • Your OpenVPN dir is on the D: partition (otherwise change the drive letter in the respective paths and leave the "D:" line out altogether).
  • The path to your OpenVPN dir is D:\Programs\OpenVPN.
  • Your connection configuration file is located in the config-ondemand subdirectory.

Basically, you just switch to the work directory and execute OpenVPN's openvpn.exe located in its bin dir on the configuration. In a way, this works as a shortcut, but just as an executable batch.

The @echo off part is just so that you won't see the other commands displayed in the window each time you start the connection.

Now you either make a shortcut to this batch file or use it itself.

Whenever you want to start the connection, right-click on it and select "Run as administrator".

Done! Test your ping and it should be fine.

OpenVPN automatic connection

All you need to do is to move the .ovpn configuration file and all the other required files into the config subdirectory of your OpenVPN installation.

When the OpenVPN service (Start => Run => services.msc) is started, it will look for .ovpn files in its config subdirectory and execute them all - with SYSTEM privileges. No UAC circumvention needed.

So just set your OpenVPN service to "Automatic" and you're good to go!

OpenVPN on-demand connection with OpenVPN service

Just do what is described under the "OpenVPN automatic connection" paragraph except for setting the service to "Manual".

Now each time you want to launch the connection, you just need to type "net start OpenVPNService". To stop it, type "net stop OpenVPNService".

Note on using connections with the OpenVPN service

As the OpenVPN service feature executes *all* .ovpn configuration in the config subdirectory, there is no way to manually interfere with one particular connection of that directory and let's say disable it shortly. All config-connections are handled as a group with the OpenVPN service.

So if you need manual independency, look at the on-demand section.

I hope this wasn't all too fuzzy with the wordings and such.

Please comment or contact me if you have any questions on this matter.

Thanks for reading!

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