[TortoiseSVN] access to repository forbidden

I get the 'access to repo forbidden' error. I have full access to SVN server too.

Here is what I have tried so far.
- SVN server is installed on Oracle VM VirtualBox on CentOS. My IP address is present in hosts.allow file.
- I can ping SVN server from my machine.

You need to have account info in order to access repository but when I access the repo, it does NOT ask for credentials even after clearing authentication info from settings on client. This is odd. It only asks to add exception to save some certificate permanently.

How can I debug this issue?

I always helps to post the full and complete error message, as text if you can copy/paste it, but a screen shot if you can't.

You mentioned certificate; do you have Subversion running under HTTPS?

Also, how are you attempting access? Via the svn client app, through and IDE, or through TortoiseSVN?

Usually, the first time an Subversion client connects to a Subversion repository, and that repository requires credentials, as soon as you sign into the repository your credentials are stored on your mahcine and then reused.

You mentioned Subversion if running on CentOS, but what are you running on?