It is strange, indeed. You are not the only on that encountered this issue but unfortunately we were never able to replicate this on our side to see where the problem resides.
Here is a screenshot of the logs after I have done the repackaging operation on my machine:
The error you are encountering here is a system error, which can be translated to: "The network path was not found".
You can either check this by looking it up on the internet or, if you have Visual Studio installed, you can open it --> from the toolbar, press "Tools" --> "Error Lookup" --> enter 53.
There are few things that I was thinking of lately:
1. is your computer part of a domain? If yes, I was thinking that maybe there are some policies which do not allow you to connect to the network location.
2. I have not asked you this before since I was pretty sure this was not the case, but I will give it a try now. Have you tried to manually connect to the network drive. For instance, you can open a CMD prompt and run the following line:
net view \\yourNetworkLocation
If the returned error code is 53, this might indicate that the problem does not reside in Advanced Installer, but in the computer's configuration instead.
3. do you have the "File and Printer sharing" option enabled? To check this, you can open Control Panel --> "Network and Sharing Center" --> "Change advanced sharing settings" --> "Turn on file and printer sharing"
When this option is on, files that you have shared from your computer can be accessed by other people from the network.
Hopefully some of the above information will be useful for you. I will further try to investigate this and see what I can find.