WMS layer error: Map images could not be loaded

I am using Maps Marker (free version) to display Web Map Services. There are several contributors of data on the Web. I am currently using E.U. Copernicus Marine Service Information. I have located the service I want to display ( http://marine.copernicus.eu/services-portfolio/access-to-products/?option=com_csw&view=details&product_id=MEDSEA_ANALYSIS_FORECAST_PHY_006_013 ) and changes one of the WMS layers (BaseURL: http://nrt.cmems-du.eu/thredds/wms/med-cmcc-cur-an-fc-hts , Layer: sea_water_velocity). When creating a new marker/layer the above layer is displayed perfectly. The same service includes an array of other parameters (e.g. BaseURL: http://nrt.cmems-du.eu/thredds/wms/med-cmcc-sal-an-fc-hts , Layer: sea_water_salinity). None of the other parameters or services work and I get the error: ‘Map images could not be loaded’. I have QGIS, a program that maps WMS and I have checked that the links and layers work. I have also doublechecked the information in the WMS layer settings within MapsMarker. Please note that the default EEA WMS layers did not work either. Hi, after trying to debug the WMS request/response from http://nrt.cmems-du.eu/thredds/wms/med-cmcc-sal-an-fc-hts , I got the following error when using the BaseURL given: The layer "sea_water_salinity" is not provided by this server I`d suggest to recheck and to get in contact with the provider. best, Robert Thank you for your responce. As I mentioned, this and other urls/layers work fine in QGIS, but not in MapsMarker (except from the sea_surface_currents). Do the default WMS layers function in your system? Thank you Did not check those, as I did not find out, what the configuration should be. The best case would be to ask the WMS layer provider for a leaflet.js example I guess, from which the configuration for Leaflet Maps Marker / Maps Marker Pro can be retrieved. Hello, Have you checked those resources from your side? I have used a GIS tool and confirmed that the WMS links in http://marine.copernicus.eu/services-portfolio/access-to-products/?option=com_csw&view=details&product_id=MEDSEA_ANALYSIS_FORECAST_PHY_006_013 and http://marine.copernicus.eu/services-portfolio/access-to-products/?option=com_csw&view=details&product_id=MEDSEA_ANALYSIS_FORECAST_BIO_006_014 are working. I have also checked the user table of WMS links for MapsMarker but again some of the resources are not valid. I would like to publish some maps. MapsMarker would be a useful tool and we would like to do the upgrade if MapsMarker could display the WMS maps in the pages above. Could you provide some support? Thank you very much Kind regards Rana Can you please provide an example for an URL that is NOT working? Thank you for the prompt response. I am using the following links: http://nrt.cmems-du.eu/thredds/wms/med-cmcc-sal-an-fc-h http://nrt.cmems-du.eu/thredds/wms/med-cmcc-tem-an-fc-hts http://nrt.cmems-du.eu/thredds/wms/med-cmcc-ssh-an-fc-hts http://nrt.cmems-du.eu/thredds/wms/dataset-oc-med-chl-multi-l3-chl_1km_daily-rt-v02 http://nrt.cmems-du.eu/thredds/wms/med-ogs-pft-an-fc-d http://nrt.cmems-du.eu/thredds/wms/med00-ogs-nut-an-fc-m Thanks please provide all settings you entered for one of the WMS layers above in the custom map settings screen http://nrt.cmems-du.eu/thredds/wms/med-cmcc-sal-an-fc-h?service=WMS&request=GetMap&layers=so&styles=&format=image%2Fpng&transparent=true&version=1.3.0&errorTiles=true&edgeBufferTiles=2&width=256&height=256&crs=EPSG%3A3857&bbox=1252344.2714243277,3757032.8142729844,2504688.5428486555,5009377.085697314 seems to work for example. (just posting this here as reference) NAme: COPERNICUS PHY CUR URL: http://nrt.cmems-du.eu/thredds/wms/med-cmcc-cur-an-fc-h Layers: sea_water_velocity Styles: empty Format: image/png Transparent: True Attribution: WMS: COPERNICUS Display legend: http://nrt.cmems-du.eu/thredds/wms/med-cmcc-cur-an-fc-hts Version: 1.3.0 Support for subdomains: No Subdomain names: empty I have put here the one you have sent in the example. When I log it, on the main page it shows there is an error in loading Thanks