I had been using bitmask on Parrot Linux without issue, it is based on Debian testing. it just stopped connecting one day. I created a Debian testing box to make sure it was not the sand boxing of parrot. I found that apt pinning openssl to stable solved the problem. I saw posted somewhere that openssl in testing will only us tls 1.2. I'm guessing that is the issue. Just providing info. Thank you for bitmask !