ssh php login problems

[harsha.p...@gmail.com]

hi
I was wondering if anyone could help me out with the following problem:

We have a website which requires a login...and the login is
authenticate via ssh2....by using the ssh2 functions in php...the
webserver is apache...
However, sometimes, the ssh2_connect function returns false if you
login again sometime after you have logged out....i.e. the connection
is not established...I am not able to find the reason why as not error
is generated...however ig you clear the browser cache and close and
open the browser again, it logs in jsut fine...the ssl logs just shows
that the child process has been terminated....
I am just not able to understand the connection...it would be great if
you could help me out

Thanks,
HArsha