I am also having this issue of crashing and i play on a US sever, uldum

I am also having this issue since upgrading to 1.9.7. First time it happened was right after i installed it. So i removed it and reinstalled and same issue. We able to get around by diabling it. This happens on both machines i play on, a high end laptop and an older desktop both running windows 8 pro 64bit.

I play on a US Server and have 51 bnet friends. I will be sending you the file you requested.