I have noticed that the UltraVNC upload file transfer speed (client -> server) over a LAN is reliably about 7kb/sec no matter the conditions. Interestingly, the download file transfer speed (server -> client) is a little faster, but nothing to brag about - if that's the type of thing you brag about. The problem is even worse over WLAN, as expected. In either case, both LAN and WAN should support decent transfer rates. I read this post regarding changing the sendbuffer and maxcpu variables in the config file, but I see no such variable and I'm not sure if it should be created since it says that is available beginning in versions previous to the one I am using. Also, the poster reported better transfer speeds after playing with the config variables, but they were still far from what you might expect given the bandwidth in today's devices. So additional suggestions are eagerly welcome.
The remote viewing is decent, but I am looking for any suggestions to help increase the overall file transfer speed.