passcode problem

[doeraymee]

For about a year now, when I try to attend  a meeting that supposedly requires no passcode, I can't get in without one, although most (but not all, I think) other participants can.  I'm unable to enter either through the browser or within my desktop version of zoom. Sometimes I am lucky and the host will email me a passcode but often I can't reach the person. This just happened again this morning. Is there something I can do to my computer or (free) Zoom account to change it so I can enter just like everyone else? Thank you!