Cannot connect to SAMBA shares drive after update to Catalina

Apple HFS filesystem tracks files according to a (hopefully) unique identifier instead of a path when it can.

The fastest way forward is to forget the old location / clear the recent history / and navigate to the shared folder and reconnect.

If you can't clear up the history, please post a screen shot of where you are seeing the "old" mount point and perhaps we can guide you there once more detail is provided. In the absence of detail, this general procedure is offered in hopes it helps you resolve things.

Finder caches file/folder metadata from SMB shares. Try if disabling the directory caching helps according to the last paragraph in:

• Adjust SMB browsing behavior in macOS High Sierra 10.13 and later

Disable directory caching

Your Mac caches file and folder metadata temporarily in local memory. This improves browsing speeds, especially on high-latency networks. Systems with more memory installed can cache more file information.

If you'd like to disable directory caching so that macOS re-downloads the full contents of the folders and metadata every time you browse an SMB share, you can create or edit /etc/nsmb.conf. See the nsmb.conf man page for more information on how to edit this file.

If your system doesn't already have an /etc/nsmb.conf file, use the following Terminal commands. Note that you must be logged in as an administrator with sudoer privileges to set this file:

echo "[default]" | sudo tee -a /etc/nsmb.conf

echo "dir_cache_off=yes" | sudo tee -a /etc/nsmb.conf

Unmount/remount SMB shares afterwards.