[jaramillo]

Firewall, Antivirus, wrong Configuration.

I have flashed with ISTA and ENET, but use DHCP-Router (software) and disable Antivirus/Firewall.

Firewall totally disabled and no antivirus. Which configuration do you mean? ESYS?
Tried with original Icom via Router or even using build in DHCP server and still sometimes had this issue.

When I used esys 3.32 everything was fine but when I installed esys 3.36 it started using UDS all the time but when flash nbt / evo goes normally over HTTP. Flash via UDS in 3.36 is not that slow as was in version 3.32 it was very slow…

Interesting. I'm using right now 3.36.2 and EsysX launcher so maybe I will give a try another version.

EDIT: Another question by the way. When I can and when I can't use Stop button in Tal Processing tab when programming is on?

You can use stop button but the transactions that are being executed will continue.

I really don't understand the rush to use latest esys/ista d/p versions... latest doesnt mean better usage etc...