kenody wrote Thanks for the recommended settings, but do that will make the router upload speed drop to max. 8~10MB/s, instead of around 80MB/s as expected....... perhaps a new fixed firmware will be...

If all users have to do the following steps, you will be no compliant on your WDR-4900: Go to Bandwidth Control -> Select Control Settings, Enable Bandwidth Control, Egress Bandwidth set to 7500,...