Retro Client getting mixed up with IP numbers

[mzacht at mac.com]

Anybody have a clue what causes Retrospect 7.6(pc) or 6.1230 (Mac)  
using 6.2234 clients to lose track of its ip address for a particular  
client?

What seems to be happening in one case is when the IP number of a  
computer gets changed by a DHCP server Retrospect doesn't seem to  
coordinate that change with the remote. You end up getting one of the  
following errors which show up on a weekly basis at various clients of  
mine...

(I have replace the real users name with xxxxx)

Can't access volume admin on xxxxx computer, error -1028 (client is  
not visible on network). (Message running Retrospect on a Tiger system)

Can't access volume fido onxxxxxx, error -525 (wrong client found at  
that address  (Message running on Retrospect on a PC system)

Can't access volume xxxxxx on xxxxx, error 541 (client not installed  
or not running). (Message running Retrospect on a Tiger system)

In all cases the remote is running. This can be verified by inputting  
the ip number of the computer in the testing area of configure/clients/ 
network.

So, you either have to reinstall the client or if on a PC, you can  
change the access method from Multicast to direct, input the correct  
ip number, update the remote, wait 30 seconds or so and change back to  
Multicast.

This problem happens regardless of DHCP, just not as often. Meaning,  
some manually configured Mac computers sometimes can't be found by  
Retrospect even though the remote is definitely running..which can be  
confirmed again  by "testing". If you then delete the client and add  
it back it will say something like in use by someone else. You have to  
run the client installer to resolve.

I can't find any pattern which triggers these problems. I have  
searched the internet and found other users having similar issues  
without any permanent resolution.

These problems Never happened in the old days.... pre version 6.130 or  
earlier. I've tried going back to older clients but had mixed results.

Any thoughts from the community?

Thanks in advance.

Todd