I’ve recently had to update, and I seemed to detect a similar problem.
similar thread: Tile Server for open street map - #3 by pmeems
using the standard code
AxMap.Projection = tkMapProjection.PROJECTION_GOOGLE_MERCATOR;
AxMap.TileProvider = tkTileProvider.OpenStreetMap;
AxMap.KnownExtents = tkKnownExtents.keUSA;
Seems to work, if not VERY slowly. I did have some problems when I’m changing the projection.