You should explain more about what version you're using, and the exact circumstances of the problem. However, I can tell you that there was this bug in my fork, for just a couple of days (6-29 until 7-01):
Originally Posted by me in the pyTivo git log
Browsers attempting to access the admin/togo/push functions would hang if they were running on the same machine as TiVo Desktop.
If that's it, upgrading will fix it.