if your bots are getting stuck on challenges -- you most likely have two bots using different handle lengths .. there is suppose to be an error shown but for some reason its not. I made the hub log this error now as follows:
[00:12] <Dillinger> [00:08] Telnet connection: xxx.xxx.xxx.xxx/xxxx
[00:12] <Dillinger> [00:08] Timeout/EOF ident connection
[00:12] <Dillinger> [00:08] Challenging testdrop...
[00:12] <Dillinger> [00:08] Non-matching handle lengths with testdrop, they use 32 characters.