You're absolutely correct - I should've mentioned that - I don't want it to look like I am claiming credit for other peoples solutions.
I had printed off VinLouisVilles suggestion and typed it in in response to this post as it worked for me and thought it might help.
I am very much an "asker" and not a solver, and appreciate all the help I have had from the experts on the forums.
I have no interest in racking up points, or likes - I don't think I have the knowledge base!
keany1976, you had me so confused at first, until I realized what you had done.
You basically did the same thing to me as Connie Hawkins42 had done. Do you see on my post where it says, "in response to Connie Hawkins42"? When I wrote that post, I wasn't talking to you at all. I was talking to Connie Hawkins42, because I noticed that she said something, then somebody below her thanked somebody else for advice, but she thought it was in response to what she said, just because it happened to be right below her comment, so she asked them to "like" her helpful post, but they weren't even talking to her in the first place. Just because a comment appears right below yours, doesn't mean that person responded to you. You have to look where it says, "in response to ..." to see who they were really talking to. Hope that helps remove any confusion.
I have a strong tendency to relate this to network problems.
"Suddenly Boom" this started happening?
Begin by pinpointing the "Boom" event in time. Go and look what changed at, or right before this event.
9 out of 10, someone changed something without telling you.
Do a site survey, and watch for new unknown devices on the LAN, someone messing with cabling.. HobbyBob krimping his own connectors, those kind of things.
Also compare with known good installations you have out theree.