I have the maker and support on the line. I hate to write this but never found the solution in general forums and I'm someone who wrote router code in the 90's.
I have layer 2 connection between two sites in my company , and it seems there is a problem with the link aggregation between the sites . see below image:
Has anyone saw something like this before and know what to do to fix it?

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic