I had the need to disable IPv6 on my Linksys router, because supposedly parental control works (better) in that way. However, once that is disabled, my son’s computer would stop loading some google sites, including google classroom, while other computers on the same network are fine. I suspect I tweaked some settings on his computer in prior efforts of getting parental control to work, but now I don’t know what was changed. Any suggestions to check? Thanks.