On prem EAC shows in text only

[allanw-trillium]

Hi All

I'm hoping someone has seen this before.

EAC is only showing in text only on both IE11 and Chrome. I've rebooted the server, etc. and it's still happening. 

Everything was working fine up until last week. 

Any ideas?

[#2]

Looks like an issue with the Updates.

Bring the OS to the latest security and patches - restart the server.. should fix your issue.

[#3]

It could be your browser cache or your site being assigned to the wrong zone (intranet, internet, trusted etc.) in IE.

Also the recycle of the ECP app pool could solve your problem.
This refreshes the ECP virtual dir.