Stuck on loading Kings Canyon and infinite loading bars on top right corner [ Edited ]

[StaGBeetle12]

Product: Apex Legends
Platform:PC
Please specify your platform model. PC
AMD or Nvidia Model Number ryzen 5
Enter RAM memory size in GB 16gb
What is your gamertag/PSN ID/EA Account name? StaGBeetle12
Please provide your squad mates' gamertag/PSN ID/EA Account name if possible.
Which Legend were you playing (if applicable)?
Which Legends were your squad mates using (if applicable)?
Where did the issue occur? In the lobby (waiting area before the match)
Which part of the map or menu were you in? If you don't remember the exact name, please describe the area or what you were trying to do in the menu. lobby
What were you doing when the issue occurred? E.g. respawning a squad mate at a beacon, using an ability, a squad mate left the game. loading the lobby or starting a match
Did your squad mates also experience the issue? I don't know
How many matches had you played in a row before the issue occurred? 0
When did this happen? (dd.mm.yy hh:mm)
How often does the bug occur? Often (50% - 99%)
How severe is your issue? Major impacts to gameplay
What happens when the bug occurs? laggy lobby with infinite loading bars on top right corner and I cannot start a match. legend select screen doesn't load and freezes with the error The client is not running the anti-cheat. or has failed the anti-cheat authentication: Authentication timed out [1/2].
What should be happening instead? normal lobby and legend select screen
Steps: How can we find the bug ourselves? idn

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I am having two kinds of bugs that are making Apex Legends unplayable for me.
I play Apex in PC and 90% of the time these two bug occur.
Video1 shows the laggy lobby with infinite loading bars on top right corner and I cannot start a match.
Video2 is when I successfully logged into the lobby but, legend select screen doesn't load and freezes with the error The client is not running the anti-cheat. or has failed the anti-cheat authentication: Authentication timed out [1/2].
I have tried every possible solution that is posted in AHQ, nothing worked.
Interesting thing is that I downloaded Apex in PS4 and have the same symptom. Also, people who had bugs above cant play Titanfall 2 with similar symptom.
I can play other online games with no problem.
Beside me, there are some people who are having this problem in Japan.
Help us plz