Request Entity Too Large error on WCF service

Hello!

I have a WCF service and get the error "Request Entity Too Large" if the client sends an array of about 100 KB.

On the internet, I have found many users with the same problem and tried the suggested configuration changes (setting maxBufferSize etc. on the server and client, readerQuotas, maxItemsInObjectGraph...). But nothing is working. I tried a binding without name and a named binding with an associated endpoint.

Is there another option?

Thanks for any suggestions!