PPTP stops working on Win2k SP4, any ideas why? netstat shows...

[Guest Default User]

Hi,

 

I've got a win2k SP4 server running routing and remote access configured for

PPTP.

 

It will work great for a week or two and then all of a sudden stop allowing

remote connections.

 

Netstat -a shows it is listening on port 1723, but I am unable to connect to

it with the "telnet localhost 1723" command.

 

Also, I noticed today that the ports area of the routing and remote access

tool was missing all of the entries for PPTP when it was not working.

 

Once I restart, they are come back, it accepts port 1723 connections, and

all is well again.

 

By the way, restarting the remote and remote access service does not fix the

issue. I have to restart the system.

 

Any idea why/how this happens?

 

Thanks,

 

Alan

http://www.sadevelopment.com

Partition Boot Manager - boot up to 256 operating systems with full login

security.

Large Drive Tools - low level disk tester and editing tool.

[Guest Masterplan]

RE: PPTP stops working on Win2k SP4, any ideas why? netstat shows...

 

Hi,

 

You can debug RAS connections using RAS logs. To enable RAS logs run command

“netsh ras set tracing * enabled . Check the logs at %windir%\tracing

directory. Error code related to RRAS are listed here

http://support.microsoft.com/kb/q163111/

 

Have a nice day!

 

"Default User" wrote:

> Hi,

>

> I've got a win2k SP4 server running routing and remote access configured for

> PPTP.

>

> It will work great for a week or two and then all of a sudden stop allowing

> remote connections.

>

> Netstat -a shows it is listening on port 1723, but I am unable to connect to

> it with the "telnet localhost 1723" command.

>

> Also, I noticed today that the ports area of the routing and remote access

> tool was missing all of the entries for PPTP when it was not working.

>

> Once I restart, they are come back, it accepts port 1723 connections, and

> all is well again.

>

> By the way, restarting the remote and remote access service does not fix the

> issue. I have to restart the system.

>

> Any idea why/how this happens?

>

> Thanks,

>

> Alan

> http://www.sadevelopment.com

> Partition Boot Manager - boot up to 256 operating systems with full login

> security.

> Large Drive Tools - low level disk tester and editing tool.

>

>

>

[Guest Default User]

Re: PPTP stops working on Win2k SP4, any ideas why? netstat shows...

 

Hi,

 

Thanks. Could this be from some sort of denial of service attack or someone

trying to connect to my VPN who shouldn't be? The system event log showed a

bunch of messages from what looked like the MSIISFTP or something like this

with many failed attempts with the administrator account between

2:00am-4:30am.

 

It happened again today. My normal 16 ports were missing from the ports

view. Restarting the server brings them back.

 

I've turned on the logging.

 

Thanks,

 

Alan

http://www.sadevelopment.com

Partition Boot Manager - boot up to 256 operating systems with full login

security.

Large Drive Tools - low level disk tester and editing tool.