Over the weekend, our IT department installed an updated firewall. As a result, we are no longer able to pull from (and push to) the repository on BitBucket.
Attempting to perform a Mercurial operation (pull, for example) results in the message
[Errno 10053] An established connection was aborted by the software in your host machine.
Obviously something is going wrong in the communication sequence, but I am not familiar enough with the protocol to be able to identify what. I suspect that Mercurial expects to use a port that is now blocked. Which port(s) should be open to allow Mercurial to operate correctly with repositories hosted on BitBucket.org?