When I installing wiznet configuration tool, it gives error " Run time error 10048 address in use" though I tried many times to repair/modify/remove and again reinstalling it but it gives same error.
10048 Socket Error means already address in use.
refer to [url]Developer tools, technical documentation and coding examples | Microsoft Docs
I think the configuration tool maybe abnormal terminated and the address is still remained.
You’d better reset your PC.