Hi,
I did'n find such a topic (either "Export failed" or "Checkout failed") on your recommended mailing list
https://groups.google.com/forum/#!forum/tortoisesvn, so I believe my problem always existed in TortoiseSVN and does exist now. I am using the latest TortoiseSVN version 1.14.5, Build 29465 - 64 Bit , 2022/09/24 08:31:31. It is not exactly a bug, but a missing feature. I believe it is needed for many users.
Since sometime, I am unable to Export or Checkout large volumes of data, because (presumably) my internet connection became worse. Now I get messages "Export failed" and "Checkout failed", please see attached screens. It says the reason is "Connection timed out". That means that TortoiseSVN cannot reestablish a new connection when timeout occurs. While such a feature is presumably a must for an internet downloader which TortoiseSVN somehow is. With my worsened connection I am still able to download any large volumes of data through internet browser or downloader. It's a pity that TortoiseSVN cannot act alike. Could you please add this feature?