Please answer the question from above, have you any AdBlocking software somewhere in your network installed or something like Unbound?
If you remove the container that will change nothing, you will have to remove the entire game to actually pull a new update.
Also don't forget to unset force update because this will make the game start times much more slower.
I think it's some kind of network related issue, otherwise more people would have this issue.
Have you yet checked if your client ARK version is up to date? Maybe try to also validate the game files.