diff --git a/tcl/dil4.stick b/tcl/dil4.stick
index 0e2d16f..830707e 100644
--- a/tcl/dil4.stick
+++ b/tcl/dil4.stick
@@ -68,6 +68,10 @@ ts auto/cool_crit vti<4 && onek<4 && sorb<6 && still<14
 defineTemperature ts
 
 dil extVersion 1
+# for fixing communication errors
+# a fix for the clock for the serial comm. would solve the propblem
+# see http://linse-c.psi.ch:8080/sample_environment/221
+dil maxtry 10
 
 # take last selected values when doing samenv reload
 catch {default ts control}