There is a bit of history here....
Reason 8000 I had never found out what it meant but had seen it many times on ADSL lines since MDWS started. Last night while looking for something else I found out that it was for a 'G.992' failure which is the reference for the ADSL system. So I coded it in. Unfortunately I got it wrong slightly and everyone started getting that message for most failures this morning
I've now fixed it but it may stay like that in some historical references.
HOWEVER in kwiller's case I thought I'd check the upload database and lo and behold code 8000 WAS what you were uploading as the last retrain reason via DSLstats. So there was something odd going on I guess... Still uploading 8000 currently and will do until the next resync (hopefully) changes it.