could not create ssl/tsl secure channel

Hi, While I am using brutiles sharpmap extention I faced this error, in fact it appears rendered tiles. I am working on to find the problem. lets say this is my tile address https://syntool-tiles2.odl.bzh/data/ingested/3857_Mean_Sea_Level/MSL_Map_MERGED_Global_IB_RWT_NoGIA_Adjust/tiles.zxy/{z}/{x}/{y}.png

this works from zoom=2 I tried this code

 Map map = new Map();
            map.BackgroundLayer.Clear();
            var myWmtsTileSource = new HttpTileSource(new GlobalSphericalMercator(),
                "https://syntool-tiles2.odl.bzh/data/ingested/3857_Mean_Sea_Level/MSL_Map_MERGED_Global_IB_RWT_NoGIA_Adjust/tiles.zxy/{z}/{x}/{y}.png", name: "WMTS Source");
            BruTile.TileInfo inf = new BruTile.TileInfo();
            inf.Extent = new BruTile.Extent(0 ,0,90, 66.51326044311185);
            TileIndex ti = new TileIndex(2, 1,"2" );
            inf.Index = ti;
            Uri tileurl=  myWmtsTileSource.GetUri(inf);
            SharpMap.Layers.TileAsyncLayer GoogleTerrain = new SharpMap.Layers.TileAsyncLayer(myWmtsTileSource, "GoogleTerrain");
            GoogleTerrain.SRID = 3857;
           // map.SRID = 3857;
            map.BackgroundLayer.Add(GoogleTerrain);

in above code tileurl points to an actual tile, It seems there is sth wrong here but I have no idea where is its source

[pauldendulk]

Thanks for posting the solution here.

[am2222]

@pauldendulk thank you