[nsp] Problem on 53xx with XB7 and portware 2.9.4.0

[Cisco Geek Rotation]

As far as I know this problem also occurs on XA5 with portware 2.9.2.0

Obviously I changed the IP's, numbers, etc to protect the innocent.

Here is the code I have:

#show flash

System flash directory:
File  Length   Name/status
   1   10325548  c5300-ds-mz.122-2.XB7.bin
   2   468529   mica-modem-pw.2.9.4.0.bin
[10794208 bytes used, 5983008 available, 16777216 total]
16384K bytes of processor board System flash (Read/Write)

Here is the problem.  An async user dials in, gets RADIUS-authenticated, 
and has an IP address:

Router#show caller ip | include stanley
   As109          stanley   192.168.1.53 7195551111      7195551212      in

But, I can't ping them:

Router#ping 192.168.1.53

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.53, timeout is 2 seconds:
U.U.U
Success rate is 0 percent (0/5)

Not basing my entire existence on whether I can ping someone or not :) I 
look at the routing table entry:

Router#show ip route 192.168.1.53
% Subnet not in table

Well that is strange. So I wonder to myself, "Self, are they even still 
logged in?"

Router#show caller ip | include stanley
   As109          stanley   192.168.1.53 7195551111      7195551212      in

So at this point I have a user logged in, they got an IP from the pool, the 
IP isn't in the table (and it isn't assigned anywhere else in the network) 
so I wonder at this point what else to look at to determine the cause of 
this problem.

He logged off before I could do a show int async109, but I want to be ready 
next time this occurs.  Can someone offer me some tips on what else to look at?

Thanks,
Chris