Hi I am neither a system engineer nor network Guru - but just a user who happens to use bt sync in between 2 NAS. A QNAP 439 Pro II+ (destination) and an Asustor 608T (source). As I postet a while ago after installing a new release (1.4) my sync concept broke completely down. Nothing seemed to work anymore. I did a lot of try 'n' error but without success. Finally, after some weeks time, I got the new release 1.76 and lots of the experienced problems (empty gui etc.) seemed to be solved. I deleted my 5 sync-jobs and created them from scratch. It then worked for about 2 days, very slow though, but it worked. No, again, I'm facing some of the old problems again: 1. no Peers around (I'm being told on NAS1 that NAS2 is offline; and of course on NAS2 I get the info, that NAS1 is offline (even though both NAS are up and running, nothing happens) 2. as there was a sync working during the first 2 days, it was amazingly slow (I'm talking about bites od kb; the cabling is cat.6 and the router is a gigaswitch model); I have also controlled my router regarding multitask Jobs - it's activated); there is no firewall limitation on ports. 3. during the 2 days both NAS were somehow receiving and sending (my Intention is to have the Asustor (NAS1) as source and the QNAP (NAS2) as destination. That means it should only be a one way connection. Questions: - which steps do I have to do to get a fine, working System again? - what can I do that my 2 NAS do see each other (communcate) permanently? - how can I get back the Performance that I used to have on Rek. 1.3x? Thank you very much for your Feedbacks. I Need them desperately. Regards Walter