Sorry we're using Antivirus 6.6.
The Youtube issue might be related to other traffic issues, I'm not sure because it seems to only be occurring at one building even though we have it installed all over. For the go2science.com site the exclusion didn't make a difference. The only thing that did was temporarily disabling ESET protection.
I haven't had the user test in any other browers for now because our district is heavily tied in with Google, so we prefer they use Chrome.