Sorry all, and especially Hollow Island raiders.
I started to have an insane lag on wave 10 (nothing to do with the mobs, it was there even between waves).
Then I tried to relog and couldn 't.
When I finally relogged I had no chat, relogged again,, still no chat. Rubberbanding like crazy... crawled to Vanguards building (ten minutes), saw Atil, relaud and later Goreshade but I was unable to speak or trade.
... Sorry... Hope it will self-resolve.