I am having issues with Tortoise SVN lately. I am unable to update and commit anything.
Tortoise SVN version: 1.6.16 Build 21511 - 64 bit
OS: Windows 8 server
We use VisualSVN Server for the repo.

Whenever I try to update, I see the following screen where it doesn't update anything actually and it just stays like this for hours.
Similarly, when I try to commit anything, I get the error message below

It happens only on my computer. Other developers are running the same OS, same TortoiseSVN version and they can update and commit to the repository, so I think there is nothing wrong with the repository itself.
I have tried uninstalling and installing the same version of Tortoise but that doesn't work.
I also tried to update to revision -> select "Head" option and then select "Fully Recursive" in the Update Depth dropdown.
I don't prefer to change to the newest version of TortoiseSVN as I would like to stay on the same version of Tortoise that other developers are using here.