^ Ok. I'm going to be purposely deliberate and thorough here just to save posts...especially seeing my personal issue should not overwhelm this thread, but at least it can potentially help others...here goes:
Synology 412+ NAS: http://www.amazon.com/Synology-DiskStation-Diskless-Attached-DS412/dp/B007JLE84C/ref=sr_1_1?ie=UTF8&qid=1382028175&sr=8-1&keywords=synology+412%2B
Netgear N 900 Router: http://www.amazon.com/NETGEAR-Wireless-Router-Gigabit-WNDR4500/dp/B005KG44V0/ref=sr_1_1?ie=UTF8&qid=1382028090&sr=8-1&keywords=n900+router
D Link Gigabit Switch: http://www.amazon.com/D-Link-8-Port-Gigabit-Switch-DGS-1008G/dp/B003X7TRWO/ref=sr_1_2?ie=UTF8&qid=1382028042&sr=8-2&keywords=dlink+gig+switch
All Cat 6 cabling: Currently: the 400 is connected directly to the router as is the NAS. Swtich is out of the loop.
What I've done thus far:
Initially set up my movies to "share" on my Synology 412+ as closely to the instructions as possible. Created a "guest" user account that I utilize on the 400. Read privileges only.
Set up the PCH A400 and had no problems adding the share and accessing movies after running the jukebox set up.
Now, there MAY have been a time when I wasn't losing the connection, but I don't recall one.
SINCE DAY ONE: When I visit the "menu" or "settings" area, upon an attempt to return to my "networked media" I invariably get an "unable to connect to server" or "share no longer exist" error message. Have there been a FEW times when I am able to get to "WORKGROUP" and "re-access" the share? Yes. Why is this the case? I have NO idea. I have NOT CHANGED A THING, ANYWHERE. But again, this (the ability to return to networked media) never lasts and within seconds or a day, we're right back where we started.
Now, when I reboot, wholla, the jukebox pops up and I can play my files. Back to the menu ten seconds later? Guaranteed I will get one of those messages...usually the "unable to access server".
As I mentioned above, I've bypassed my gigabit switch and gone directly to my router. Problem still persisted.
I replaced the gigabit swtich with a 100MB switch. Problem still persisted...and I felt deeply stupid.
I assigned a static IP. Problem still persisted.
I ensured I had the very latest firmware loaded- that supposedly addressed the network drops (which I really DON'T have, by the way, according to a post on NMT today). Problem still persists.
Now, to add, while I cannot be 100% positive, I don't think I get what I feel many have/had, and that's this:
Say you watch a movie, turn off the PCH and go to bed. Upon returning the next day, I think they would need a reset, straightaway. I THINK that used to be an issue for me too, but now, as far as I can tell, upon re-powering, I'll just get the info screen for the last movie I played, and I CAN choose it or another selection and it will play back fine. That may change things. Again though, the second I leave that jukebox I may as well grab my ankles, cause I know I'm not watching another title wihout a re-boot.
Please let me know what I can add to help. Also understand that I'm running my router and NAS about as "stock" as I can fathom. Outside of adding the "guest" user on the NAS and assigning a static IP to the 400, there has been nary a change, elsewhere.
thanks a TON for the assistance!