This looks like a network error on your side:
host assertions.ubuntu.com assertions.ubuntu.com has address 162.213.33.203 assertions.ubuntu.com has address 162.213.33.202
This looks like a network error on your side:
host assertions. ubuntu. com ubuntu. com has address 162.213.33.203 ubuntu. com has address 162.213.33.202
assertions.
assertions.