bug / ISPs blocking ?

[Arrakistor]

Greetings,

Does anyone know why I would be getting responses of:

Sep 10 17:24:37.203 [notice] Tor 0.1.1.23 opening new log file.
Sep 10 17:24:37.515 [notice] I learned some more directory information, but not enough to build a circuit.
Sep 10 17:24:39.343 [notice] I learned some more directory information, but not enough to build a circuit.
Sep 10 17:24:41.906 [notice] I learned some more directory information, but not enough to build a circuit.
Sep 10 17:24:42.281 [notice] I learned some more directory information, but not enough to build a circuit.
Sep 10 17:24:42.640 [notice] We now have enough directory information to build circuits.

Yet, no circuit is ever built? I have come across this, it is always
like that on my network now, and some other users have reported it as
well. I've tried it on other machines on my network and I have the
same problem.

Is this a case of the ISP blocking connection to tor? What could be
causing this?

Regards,
 Arrakistor