There is no known issue in chat, since it hasn't been updated or in any way changed for the past 2+ years. What happens is whenever browsers or plugins update their software, the company doing the updating can make changes that impact its compatibility with older pieces of software such as our chat rooms. Often this has to do with security, but it could be cookies or some other setting that is hard to figure out what needs to be reset or changed back to the way it was.

Oh, and an update of a computer's malware or virus detection system can also cause these problems, since they aren't always accurate in terms of determining a true threat from something that is just not something a lot of their users do (use chat software that isn't on Facebook or the like). So such software might mark the chat system as a possible threat and block access to it.

Unfortunately, there's no easy answer to these issues when they arise. While our intention is to change over the chat system to something that is supported moving forward, this doesn't have a definite timeline yet (hopefully by year's end is all I can say).

Best,
DocJohn