how to solve the "zlibinstream:exceeded bytesIn" error in vnc

Question

Every now and then I get the "zlibinstream:exceeded bytesIn" error when trying to connect to my server through my vnc. Why do I get this error and how can I solve it when I get it - without restarting my server ?

Answer 1

This seems to be related with timing. On my mac, I'm having the same issue and usually waiting for a while and retrying is the only thing that works for me. It always comes back but not an immediate solution.

Answer 2

Came across the same issue a couple of times. I am not aware of permanent fix, but for a quick one just change colour to Fullcolour.

For me in VNC Viewer it was in options/Expert/FullColour to true.

Answer 3

What worked for me was to turn off "Adapt to network speed (recommended)" (under Options->Display) and then move the compression slider to the left from "All available colors, medium compression" to "Hundreds of colors".

Prior to this, Burpy Burp's answer of changing options/Expert/FullColour to true temporarily fixed the problem but it came back 22 days later.

Answer 4

Color level Full didnt resolve the issue but when set Options-Picture Quality High instead of Automatic resolved.

Answer 5

Opening the options dialog without changing anything did it for me. Baffled.

Answer 6

Just for the googlers out there that find this question: Changing the "prefered encoding" to something other than "ZRLE" (I used "hextile")is what solved the issue for me.

Answer 7

Another quick fix (for Mac):

Reading the other responses and trying out a few, I feel toggling random Properties/Options will "solve" this problem. Do the following for Real VNC on Mac:

Options -> Picture Quality -> High. Then Set it back to Automatic.

Answer 8

In my case the solutions is just to change quality to Low. Seems to work fine.