+2  A: 

Either their security certificate has expired, or their hosting is broken/down.

Contact CVSDude and ask them whats up.

It could also be a timeout, because for me their site is exhaustively slow..

Kent Fredric
It errors after only a couple seconds. I don't think it's a timeout.
Zack Peterson
+7  A: 

Check you proxy settings in TortoiseSVN->Settings->Network.

Maybe they are configured differently than in your web browser.

Palmin
Note also that some proxys (such as the one in my office) don't support SVN use through them without some sort of manual configuration. More information is available on their website, iirc.
Greg D
+1  A: 

It is the problem with your proxy setting in TortoiseSVN. Connect using a network which doesn't use proxy or configure your proxy settings properly.

Rajesh
+1  A: 

I've have the same problem like this, but using my own server. Maybe APACHE is allowing only limited connection to the same server. I'm increasing the max_connection and KeepAlive setting. So far so good.

Ahmad Amran
+3  A: 

I just had a similar issue, but it didn't error immediately, so it may have not been the same issue.

I'm behind a firewall and changed my proxy settings (TortoiseSVN->Settings->Network) to access an open source repo yesterday. I received the error this morning trying to checkout a repo in the local domain behind the firewall. I just had to remove the proxy settting in TortoiseSVN->Settings->Network to get it work locally again.

+1  A: 

I had a similar issue; turns out it was case-sensitivity issue. So, make sure you use the proper case.

+1  A: 

turn off your virus scanner and see if you are able to get to the repo

+1  A: 

Try pasting in the SVN URL into your browser's Address bar. You'll likely see that you cannot connect because of some issue with the URL. I had this issue just today and the problem was that I had mistyped the port number, but as others have noted it could also be a case-sensitivity issue, proxy settings, or other connection-level issues.

Scott Mitchell
+2  A: 
Wouter van Nifterick
+1  A: 

I did not have network settings changed in any way and thus most of the stuff presented here did not apply to me. After messing around a lot the comment about the virus scanner got me on the right track: There are some virus scanners like McAfee, that protect certain areas of the system directories and make them read-only. When you connect to a server for the first time, Tortoise SVN tries to write the certificate on one of these files which fails due to the protection. Switch off the protection briefly, start the check out and after the certificate dialog, you can switch it back on. This at least worked for me.

+1  A: 

I got the same error today and discovered that the firewall was blocking the svn client

kalengi
+3  A: 

I realize this is an old question, but the same issue happened to me, but for a completely different reason.

It could be that cvs-dude changed certificates, so it no longer matches the certificate you have cached.

You can go to TortoiseSVN->Settings->Saved Data and click the 'Clear' button next to 'Authentication data' and then try again.

drhorrible
thanks! - very helpful
Rory
+1  A: 

This was driving me nuts and I solved it today. I'm posting in this old thread because I arrived here several times while searching for a solution. I hope it helps someone. For me, I checked svn-settings --> network --> Edit Subversion server file and found that there were some uncommented lines at the end:

http-proxy-host = 
ssl-trust-default-ca = no
http-proxy-username = 
http-proxy-password = 

that differed from my co-workers. Once I comment these, it started working again.

mcgyver5
+1  A: 

After upgrading TortoiseSVN today, I fought this same issue. The post above about commenting out all proxy values in the server file above worked.

Thanks Mcgyver
+1  A: 

FYI, the KeepAlive set to On worked for me.

Bill
+1  A: 

This can occur because of you are trying to checking out the repository by accessing it via a proxy server without enabling the proxy server in the place you need to change the settings in TortoiseSvn. So if you are using a proxy server make sure that you put a tick in "Enable Proxy Server" in Settings->Network and give your Server address and Port number in the relevant places. Now try to check out again.

aruna
A: 

Hello, I have a similar problem, When i connect to SVN inside the domain everything works fine, but when i connect from outside the domain, the error message Options of 'URL' : could not connect to server (server) The SVN server is installed on a machnine that has a static IP and i can access a website deployed on this machine but i cannot ping it and cannot access the SVN server. I have tried switching off both antivirus and the firewall and it is not working either Any ideas?

Menna
A: 

Thank you to all the commenters on this page. When I first installed the latest TortoiseSVN I got this error.

I was using the latest version, so decided to downgrade to 1.5.9 (as the rest of my colleagues were using) and this got it to work. Then, once built, my machine was moved onto another subnet and the problem started again.

I went to TortoiseSVN->Settings->Saved Data and cleared the Authentication data. After this it worked fine.

David