Chris/Ditty. Have you tried optimizing your config - on both sides? For example, please search for TIMEOUTbusy in  https://github.com/mtrojnar/stunnel/tree/stunnel-5.58 &/| https://github.com/mtrojnar/stunnel/tree/stunnel-5.57 On 12/21/20 13:09, dittyadler@gmail.com wrote:

Hi,

I'm running stunnel version 5.58 on Windows, everything works perfectly besides that sometimes stunnel gets stuck for 30 seconds - Nothing special in stunnel log, except for the 30 seconds delay: