-# wait longer than 20 seconds in total.
-RequestReadTimeout header=10-20,minrate=500
+# wait longer than 40 seconds in total.
+# Note: Lower timeouts may make sense on non-ssl virtual hosts but can
+# cause problem with ssl enabled virtual hosts: This timeout includes
+# the time a browser may need to fetch the CRL for the certificate. If
+# the CRL server is not reachable, it may take more than 10 seconds
+# until the browser gives up.
+RequestReadTimeout header=20-40,minrate=500