iTunes errors - 12002 & 9039

I have a new work computer and have downloaded iTunes but when trying to sign into it, I get the attached error message. I have uninstalled & reinstalled with no change and there does not appear to be any software update required.

Note this is a work computer so does have some restrictions, however the software seems to have installed successfully, so do not believe this to have impacted it so far.

How can I avoid these errors 12002 & 9039?

Thanks!