Hi,
Please try the following:
1) Downgrading java version to java 6 update 7 on the test machine.
2) On the host machine, Control Panel >
Java>
1. Under General tab > Network Settings > select "Direct connection"
2. Under General tab > Temporary internet files > Delete Files
Please let me know if this helps, else please upload the configuration so that we can look into the same.
Output for 'debug http 255' and java logs from the host machine will be really helpful.
Regards,
Manish