FWIW, I do see this occasionally, but I'm guessing my ISP is doing transparent proxy caching. However, sudo apt-get update -o Acquire::http::No-Cache=true Did fix it for me.
FWIW, I do see this occasionally, but I'm guessing my ISP is doing transparent proxy caching. However, :http:: No-Cache= true
sudo apt-get update -o Acquire:
Did fix it for me.