problem with freebsd-update on 8.0

[Maciej Jan Broniarz]

Hello,

I am trying to upgrade my servers to 8.0-STABLE. All my three machines 
run 8.0-PRELEASE. On two of them freebsd-update upgrade went well,
still on the third one I ran into problems:

# freebsd-update upgrade -r 8.0-RELEASE
Looking up update.FreeBSD.org mirrors... 3 mirrors found.
Fetching metadata signature for 8.0-PRERELEASE from 
update5.FreeBSD.org... failed.
Fetching metadata signature for 8.0-PRERELEASE from 
update4.FreeBSD.org... failed.
Fetching metadata signature for 8.0-PRERELEASE from 
update2.FreeBSD.org... failed.

What might be the issue? Network is configured correctly and I have 
network conectivity. I am able to for eg. run a cvsup update or install 
a package via pkg_add -r. Still, freebsd-update doesnt work.

Thanks for any help,

Regards,
mjb