I confirm having the same problem using both xmaxima and wxmaxima for maxima 5.9.2-2.
I compiled a deb package from the new maxima 5.9.3-1 source.
The configure complained that gcl was compilied with a missing required option (can not remember it now).
I then compiled the source with clisp and now everything works fine. Xmaxima and wxmaxima can connect to maxima server with no problems.
All compilation were performed on i686 architecture
I confirm having the same problem using both xmaxima and wxmaxima for maxima 5.9.2-2.
I compiled a deb package from the new maxima 5.9.3-1 source.
The configure complained that gcl was compilied with a missing required option (can not remember it now).
I then compiled the source with clisp and now everything works fine. Xmaxima and wxmaxima can connect to maxima server with no problems.
All compilation were performed on i686 architecture