E1 debuging/connection error with IAR

Work in IAR 4.21 with E1.Windows 7

It is very rarely possible to connect with target.

And after an unsuccessful attempt, E1 must be distorted.

All connections are available.

External power supply, power supply from E1 - no difference.

The connection is correct. separate renesas programmer sees and programs.

the problem is somewhere in the IAR, since in the case of a non-connection from the E1 side, there are no attempts to jerk the pins.

I ask for help or ideas in solving the problem.

Thanks.