>>104
It could be urgent.

A completely new user is unable to write in a thread with acorn settings with a completely new IP address.
When I try to write something by completely new Chrome on PC I get the following error

「ERROR: どんぐりCookieが有効期限切れです。どんぐりシステムにログインして新しいCookieを取得ください。[NTNU]」

And since the cookie cannot be retrieved, this user cannot write forever.
Also, of course, it is not possible to create an Acorn account.
なお専用ブラウザやMS Edgeなどで登録済警備員アカウントを使って書き込むことは普通にできてる

I hope this is a problem dependent on my environment: ・・・・