问题
With reference to this thread (where, to be honest, I'm a bit lost with the technicalities):
https://www.phpbb.com/community/viewtopic.php?f=556&t=2520341&e=1&view=unread#unread
Does anyone have any suggestions as to why I am unable to upload file attachments to my forum?
I've tried every solution I can find via Google, fiddled endlessly with permissions etc. on the webserver - I just can't get it to work, nor can i find any useful error messages anywhere.
I'd be great to finally fix this.
来源：https://stackoverflow.com/questions/57703021/cant-upload-file-attachments-to-phpbb3-forum-on-iis