I started to receive this error today out of no where. Security policies were propagated with warning 0x4b8. I ran rsop.msc and I have a yellow bang next to comp configuration. I also ran Dcdiag. It returned "systemlog: an error occurred event ID 0xc0001b6f. I'm not to sure what happened or what to do next. All I now is that its rendered my network helpless!!! Any info would be appreciated!!!