Homebrewでtransfer closed with outstanding read data remaining

Homebrewでtransfer closed with outstanding read data remaining が発生した。

HEAD is now at 0629c29b8 Merge pull request #8823 from Homebrew/sorbet-files-update
==> Homebrew is run entirely by unpaid volunteers. Please consider donating:
  https://github.com/Homebrew/brew#donations
==> Tapping homebrew/core
Cloning into '/usr/local/Homebrew/Library/Taps/homebrew/homebrew-core'...
fatal: unable to access 'https://github.com/Homebrew/homebrew-core/': transfer closed with outstanding read data remaining
Error: Failure while executing; `git clone https://github.com/Homebrew/homebrew-core /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core` exited with 128.
Error: Failure while executing; `/usr/local/bin/brew tap homebrew/core` exited with 1.
Failed during: /usr/local/bin/brew update --force

こなれた手順なのに？？？となったが、ウイルスソフトの接続を切って brew doctor で解決した。
※在宅勤務の都合でSymantecのノートン360をインストールしていた。(初期設定)

$ brew doctor
Your system is ready to brew.

macOS Catalina 10.15.6
git version 2.24.3 (Apple Git-128)