I have had 40 tasks trying to upload dor a fortnight. I do not have a Crt.ca file.

So my option in the next 24 hours is to simply detach from the project and go elsewhere.

Bye, take care.

EVERYONE has a CRT file, whatever the actual name is, as it's the Security Certificate every website uses to certify they are not fake, yes fake websites create or steal CRT files but most quickly get caught.

Go to my post, click the link to download the file and run it, it will replace the files you need to make Collatz, PrimeGrid etc ETC work again, yes LOTS of Boinc Projects are affected not JUST Collatz. Don't forget to stop and then restart Boinc to make sure it reads the file as it reads it on startup.