That is very strange, but sadly not unexpected. There has been a lot of noise lately, with the websocket draft changes in new browser versions.
Would you mind sending me a dump of whatever error messages the chrome console shows? If there are none, could you perhaps send a screenshot of the last page of connections from the chrome network tab? I'd be wickedly grateful!
Something is throwing a 504 back at me. I only know enough web dev to press "CTRL-Shift-I" to find this error, not enough to know how to fix it.