Problem with OpenStreetMap

[Jarsonxv]

Good day,

For several years, I have been using the Gmap.Net control (ver. 2.1.7) to mark vehicle positions on a map. I have been using OpenStreetMaps (map.MapProvider = GMapProviders.OpenStreetMap;). However, I have noticed a problem with loading the map in recent days. When I set (GMap.NET.GMaps.Instance.Mode = AccessMode.ServerOnly;), the map does not load. The control works correctly because when I set it to (map.MapProvider = GMapProviders.BingMap), the map loads without any issues. The problem occurs on all computers I have access to.

I kindly request your assistance.

Best regards,
Jarosław Staś

[jeremyzc]

I've noticed the same issue. OSM has been working ok for me for a number of years until recently.
It looks like the generic HTTP User-Agent is no longer valid for OSM. The timeout hides the 403 response.
OSM do insist that this is unique per application: https://operations.osmfoundation.org/policies/tiles/