VPN consistantly disconnects after 179 seconds

[Mongoose2]

When a user connects to my VPN (RRAS on server 2003), the connection ends
after 179 seconds. This happens every time. I have tried with clients
running Vista Ultimate, XP, and server 2003. Going through the logs on the
server, I have found a few entries that I am attempting to see what the codes
mean. RASMAN.LOG has these entries:
WorkerThread: Disconnect event signaled on port: VPN5-9
OVEVT_DEV_STATECHANGE. pOverlapped = 0x2093238
Disconnecting Port 0xVPN5-9, reason 1
DisconnectPort: Saving Bundle stats for port VPN5-9
*****
DisconnectReason=1,pConn=0x0,cbports=0,signaled=0,hEvent=0xffffffff,fRedial=0

I would like to find out what reason 1 means.
Event viewer indicates "The reason for disconnecting was user request."
However, I believe it is the server instigating the disconnect.

IPRouterManager.log has an entry which may be related:
"Error adding route, Stack bit == 0"
This entry occurs durinig the initial connection phase, 179 seconds prior to
the disconnect call, so I do not believe it is relevant.

RASTAPI.LOG has this entry during the disconnect process:
"RasTapiCallback: DisconnectReason mapped to 2"

PPP.LOG has this entry when losing the connection:
"PPPEMSG_LineDown recvd, hPort=11"

My main goal is to determine what is causing the disconnection. I have
tried various settings in the time-out section of the VPN policy in RAS. I
have also tried various settings on the client VPN entry. Is there a list
what the codes mean for RASTAPI.LOG and RASMAN.LOG?

 

[Mongoose2]

PS - I connected and checked the routing table. The route to the client is
in the table, despite the "Error adding route" message from
IPRouterManager.log.