Can't download any model over wifi

When I use wifi to download the free models, it keeps loading. But when I switch to mobile/cellular data, it downloads instantly. Can anybody tell me why is this happening? I am from Bangladesh. Does my location have anything to do with it? Thanks for all your help.
P.S. My wifi connection and speed is fine as it works properly on other websites for download and streaming both. I do not have any other download or anything else going on that requires wifi.

Sorry to hear that. This suggests a problem with your wifi rather than with us though - Sketchfab makes no distinction based on the connection type.