Index: ulex/dbmgr.scm
==================================================================
--- ulex/dbmgr.scm
+++ ulex/dbmgr.scm
@@ -334,11 +334,11 @@
       ;; (thread-start! th1)
       ;; (thread-join! th1)   ;; gratuitious thread stuff is so that mailbox is not used in primordial thead
       ;; since we accessed the server we can bump the expires time up
       (conndat-expires-set! cdat (+ (current-seconds)
 				    (server:expiration-timeout)
-				    -2)) ;; two second margin for network time misalignments etc.
+				    -10)) ;; ten second margin for network time misalignments etc.
       res)))
 
 ;; db is at apath/.db/dbname, rid is an intermediary solution and will be removed
 ;; sometime in the future.
 ;;

Index: ulex/ulex.scm
==================================================================
--- ulex/ulex.scm
+++ ulex/ulex.scm
@@ -271,11 +271,11 @@
   (let* ((cmbox     (get-cmbox uconn)) ;; would it be better to keep a stack of mboxes to reuse?
 	 (qrykey    (car cmbox))
 	 (mbox      (cdr cmbox))
 	 (mbox-time (current-milliseconds))
 	 (sres      (send uconn host-port qrykey cmd data))) ;; short res
-    (if (eq? sres 'ack)
+    (if (eq? sres 'ack) ;; BUG: change to be less than server:expiration-timeout?
 	(let* ((mbox-timeout-secs    120 #;(if (eq? 'primordial (thread-name (current-thread)))
 				     #f
 				     120)) ;; timeout)
 	       (mbox-timeout-result 'MBOX_TIMEOUT)
 	       (res                  (mailbox-receive! mbox mbox-timeout-secs mbox-timeout-result))