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System tries to sync offline files to old server

We use a network share to store users my documents. Its redirected to this share, and the client uses offline files for speed, and just in case the line is down they can still access their data. They used to sync to server 1 for offline files. Then months ago I made them start syncing to server 2 instead. At that time they always wanted to sync with server 1 and server 2. So I had to go into mobsync on each client delete all partnerships and all offline files, and start from scratch for server 2. This worked for months, and server 1 had no file shares on it. Now I have removed server 1 from service and each client is once again complaining that it cannot sync to it. However in mobsync it only shows server 2 and it syncs with that correctly. I cannot figure out how to tell it never again sync to server 1. Now to fix it (and this is a hack job) I changed the IP for server 1 in dns. I made server 1 ips the same as server 2, so the error on the clients went away. However I would like to fix it correctly.

Windows XPMicrosoft Legacy OS

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8/22/2022 - Mon

from this previously answered question:

Offline folder synchronization is trying to connect to server that no longer exist.


How to Restart the Offline Files Cache/Database

The Offline Files (CSC or Client Side Caching) cache and database has a built-in capability to restart if its contents are suspected of being corrupted. If corruption is suspected, the Synchronization Wizard may return the following error message:
Unable to merge offline changes on \\server_name\share_name. The parameter is incorrect.
The Offline Files cache is a folder structure located in the %SystemRoot%\CSC folder, which is hidden by default. The CSC folder, and any files and subfolders it contains, should not be modified directly; doing so can result in data loss and a complete breakdown of Offline Files functionality.

If you suspect corruption in the database, then the files should be deleted using the Offline Files viewer. After the files are deleted out of the Offline Files viewer, a synchronization of files may then be forced using Synchronization Manager. If the cache still does not appear to function correctly, an Offline Files reset can be performed using the following procedure:
1.     In Folder Options, on the Offline Files tab, press CTRL+SHIFT, and then click Delete Files. The following message appears:
The Offline Files cache on the local computer will be re-initialized. Any changes that have not been synchronized with computers on the network will be lost. Any files or folders made available offline will no longer be available offline. A computer restart is required.

Do you wish to re-initialize the cache?
2.     Click Yes two times to restart the computer.

Each client would then have to re-configure their offline folders

I dont believe it has anything to do with a corrupted database as the files sync correctly. The clients are just looking for a server that they havent used in months. There is only server 2 listed in the list of folder to sync too. Everything still works, users just get an annoying ballon at the bottom right of the screen. My DNS changes has made all the errors go away for now.

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