@Jean-David,

Try the threads in the below search result. See them frequently reported by new members on Linux and hardly if at all anything to do with flakiness. WCG uses secure connections and needs to verify your certificate:

http://www.worldcommunitygrid.org/forums/wcg/...6&submitbutton=Search

Your suggested explanations do not seem to apply.

1a.) "This error most frequently occurs because of incorrect date settings on your computer. To correct the problem, correct your computer clock."

My computer clock seems to be correct. I would expect it is correct because it is synched with IP address 66.187.233.4 on the Internet. It also agrees with my wristwatch that keeps very good time.

1b.) "Since BOINC 5.10.42, this error message is also given when the ca-bundle.crt file cannot be found."

I am running 5.10.45 and file ca-bundle.crt is present

2.) "This is a known problem with some ported BOINC releases, especially certain Linux x64 ports. The reason for the error is that a file (ca-bundle.crt) was omitted from the release."

I am runing CentOS4 on a dual processor (Intel) 32-bit machine.

I get this error message:

19-May-2008 11:13:47 [World Community Grid] Scheduler request failed: Problem with the SSL CA cert (path? access rights?)

not

Scheduler request failed: peer certificate cannot be authenticated with known CA certificates

19-May-2008 09:39:10 [---] Data directory: /boinc

$ ls -l /boinc/BOINC
-rwxr-x--- 1 boinc boinc 2004948 Mar 5 10:47 boinc
-rwxr-x--- 1 boinc boinc 8820236 Oct 2 2007 boincmgr
-rw-r----- 1 boinc boinc 238100 Feb 20 15:38 ca-bundle.crt

This is the same place as on my other machine where WCG works.

3.) "SSL connect error"

I do not get this error. In any case, my version of curl is:

$ rpm -qa | grep curl
curl-7.12.1-11.el4
curl-devel-7.12.1-11.el4

So it must be something else.

If your Data directory is /boinc, shouldn't the certificate be there instead of /boinc/BOINC? Try copying or linking the certificate to the /boinc directory, as I'm not sure the client will search subdirectories for the file.

Edit: To test this, I used a Windows machine. I stopped the daemon, move the cert. out of the data directory completely and could not communicate with WCG. Next, I moved the cert. to the projects subdirectory and still could not communicate. Finally, I moved the cert. to the main data directory and communications worked correctly.

If your queue is full and you select a new project, you could get some downloads of graphics elements like .gif files to be used later. Maybe that's it.