Assuming you are talking about IRC client-server-client pings, make sure that:

- She uses the correct command: /ctcp yournick ping
- Your client replies to pings: get someone else to ping you and see whether there is a response.
- She does not ignore the reply: the command /ignore -rw clears the ignore list.
- A script doesn't hide the reply: /remote off to disable remote scripts.

The ping reply should then appear in the her status window.