RAS Service

[Andreas Yiangoullis]

I have RAS enabled on Windows2000 SP3 with all updates. I use callback
feature which used to work just fine. All of a sudden, the callback feature
stopped working. I can dialup normally but if I use the callback, an error
is logged that I do not have dial-in permissions although I have full rights
and absolutely nothing has changed prior to this error. I noticed though
that if i use callback with analogue modem the callback works. However I
normally use ISDN. It sounds strange to me because ISDN callback used to
work for a very long time and if it was a hardware problem, the RAS logs
wouldn't say that I don;t have the rights. I recently applied SP4 as well
but it didn't help.

Any ideas on that?

 

[Sharoon Shetty K [MSFT]]

Hi Andreas,

You would not be able to connect from a ISDN to a modem. What is the setup
in your server, do you have a ISDN card or do you use modem for accepting
the client calls?

Thanks,
Sharoon

 

[Andreas Yiangoullis]

You did not understand. I did not mention that I dial-up from ISDN to
analogue. Of course I use ISDN-to-ISDN or analogue-ton-analogue. What I said
is that I use either analogue or ISDN.

 

[Amit Padalkar [MSFT]]

As you have mentioned that callback feature used to work earlier with ISDN,
I am not sure if the follwing will help in your case:

A note in
http://www.microsoft.com/windows200...indows2000/en/server/help/sag_RRAS-Ch1_47.htm
says:
"Callback over a primary rate ISDN channel may not work properly if a
service is listening on the other ISDN channel. When the remote access
server calls back, an ISDN channel is picked to receive the call. If the
ISDN channel is not the same one used to make the initial call, the remote
access client or demand-dial router does not recognize the incoming call as
the remote access server callback and drops the call."

Can you please confirm if this is cause of your problem?

 

[Andreas Yiangoullis]

From the log analysis, it seems that the problem could be related to this.
The issue though is how can I find what other service listens to that line
since no other application was installed and no other configuration change
occured. In my configuaration, the server has one analogue modem and one
ISDN modem. Only RAS is installed. The analogue modem occupies the analogue
line and the ISDN holds the ISDN line.

 

[Amit Padalkar [MSFT]]

View the properties of the connection on client side. On general tab, it
will list different devices under "Connect Using". Can you tell me whether
both ISDN channels are selected or just one? If both channels are selected,
select only one channel and then try to connect. Let me know if using only
first or only second channel solves this problem.

--
This posting is provided "AS IS" with no warranties, and confers no rights.

From the log analysis, it seems that the problem could be related to this.
The issue though is how can I find what other service listens to that line
since no other application was installed and no other configuration change
occured. In my configuaration, the server has one analogue modem and one
ISDN modem. Only RAS is installed. The analogue modem occupies the analogue
line and the ISDN holds the ISDN line.

As you have mentioned that callback feature used to work earlier with ISDN,
I am not sure if the follwing will help in your case:

A note in

http://www.microsoft.com/windows200...indows2000/en/server/help/sag_RRAS-Ch1_47.htm

 

[Andreas Yiangoullis]

I only use one channel. I disabled multilink both on client and server. The
connection itself must be ok because I can use the same connection and only
by changing the modem to the analogue, callback will work. Then changing
back to the ISDN, callback won't work.