WPT 2.12 IE - Hangs during testing

[EEP22]

Hi,

I've been running some fairly long site lists through a modified WPT 2.12 lately and noticing that after running for a while the driver gets stuck at "Waiting X seconds for site to complete" and hangs there forever. I've been trying to debug what could be causing this but I've had no luck, it finishes SetSite() and then just nothing, even though it should be continuing to load more.

I've attached a log of the test running, we have modified the order of how sites are run in a list, but have not touched any of the code relating to how a site is loaded (to my knowledge) so I assume this is an issue with the unmodified version of the drivers as well. Any help with this, either pointing me in the direction of where the issue could be, or a patch would be appreciated.

Thank you,
Eric

DebugView Log: https://drive.google.com/file/d/0Bz_JEsh...sp=sharing