bitbake core-image-minimalにて以下のエラーが出ます。

ERROR: OE-core's config sanity checker detected a potential misconfiguration.
Either fix the cause of this error or at your own risk disable the checker (see sanity.conf).
Following is the list of potential problems / advisories:

Fetcher failure for URL: 'https://yoctoproject.org/connectivity.html'. URL https://yoctoproject.org/connectivity.html doesn't work.
Please ensure your host's network is configured correctly.
Please ensure CONNECTIVITY_CHECK_URIS is correct and specified URIs are available.
If your ISP or network is blocking the above URL,
try with another domain name, for example by setting:
CONNECTIVITY_CHECK_URIS = "https://www.example.com/" You could also set BB_NO_NETWORK = "1" to disable network
access if all required sources are on local disk.

社内のセキュリティで監視系のproxyを経由して影響と思われますが、connectivity　checkのみを無効にする方法はありますか？