Suddenly …. after hours of thinking, analyzing .. I’ve found it … Yeah …

If the DNS IP address within the CH3SNAS is equal to the gateway address it will NOT work (or sometimes work).

Your router will forward DNS stuff, so normally the IP address of the router can be given as DNS server .. but on NFS level it is causing issues.. No idea why ..

It took me a lot of patching and I needed a lot of settings to be changed but as well as here in my office as at home both parts are working the fullest now…

Phew.. Thanks for everyone commented… maybe maybe this is helpful for someone outthere ..