Sometimes I see the "new question with activity message", my score increments automatically without refreshing, "an edit was made, click to refresh" and all other Ajax responses. 90% of the time this doesn't work, and I have to refresh manually to get all the updates. Why?
I am running Windows XP SP3, Firefox 24.0 with a handful of add-ons (I tried running with add-ons disabled, and the problem remains).
I noticed by looking at the Firebug console that I get the following error whenever I navigate to Stack Overflow:
NetworkError: 502 Bad Gateway - http://sockets.ny.stackexchange.com/"
I don't know if it relates to the problem.
(I send the administrators this question and they told me to ask here, so here we are.)