Office Update error 30125-9 (500)

Do you have any anti-virus software installed?

Please try disabling the firewall/anti-virus and try updating the office

You can also try changing the network

Refer this link for more help https://support.office.com/en-us/article/Error-code-30174-4-30125-4-30038-4-or-30125-1011-when-installing-Office-7bfabec6-76be-4cde-880e-819a9c569612

Please reply if need more assistance. Happy to help

Unfortunately this is in an office environment and disabling the anti-virus or changing the network is not possible.

We have Trend/Officescan for anti-virus if that makes any difference.

I've seen this type of answer before and I really don't understand the reasoning.  I've installed loads of things over the 40 years in the IT business and never have I had to deactivate the anti-virus.

I used the Office "Offline" installer due to similar problems with the initial install.  Is there an "Offline" updater?

Thanks,

Dan

BTW, when I tried to download the "offline" installer from this PC I was directed to: http://officecdn.microsoft.com/.../O365HomePremRetail.img

which gives me an HTTP 500 Internal Server Error.

I manually changed this to HTTPS:// and the download started immediately.

Sounds like a flaw to me!   Maybe the UPDATE process is doing the same.

After 3-4 hours of Microsoft Support trying to fix it, they realized that this PC is on a "domain" network (vs workgroup).

They told me to refer this problem to our network support people.

This is an Office 365 "home" version.  Maybe a "business" version is required for domain (work) networks.

If so, a better error message would be suggested!

After Microsoft attempted to resolve this issue after 3-4 hours, they gave up as they believed it had to do with this PC being on a domain network.

Our support company had a kick at this problem and after turning off our firewall box that protects our entire network, I was told that the UPDATE proceeded.

Does Microsoft have names for their servers that can be added to a firewall?

I still think that a TEXT explanation of the error makes more sense than ... (500).