Echo the good news ... 2.1.1 audio is fine on all cameras / PCs ... one note though ... when installing 2.1.1 over 2.1 or 1.4.2.6, the installer overwrites (changes) the port forwarding ports. Mine were 12000 - 12005, which was changed to 12000 - 12100, which caused the dreaded "No Sources" message on iPhone. Manually changed them back and all is fine. Thanks!