I had the same problem this morning. I was unable to even play softcore:
Ping is going crazy. WinMTR reports 0% packet loss...
Also rollbacks are in place again today for EU:
They mostly fixed this one but not completely gone:
2.0... We get dc-ed or kicked to login page, lagged out with high ping or massive lag spikes, server rollbacks, loss of maps, forums shortly down, gg. I'm not returning anymore today. It's a full house again.