Is the USB cable working properly? Maybe you can have a test by connecting the printer to a computer directly. If the cable is not functioning, you can try with a different cable.

Try to do a DMZ to the IP address of your QNAP TS-210 and see whether it will work or not.

:(I'm afraid this router would not satisfy your needs since the QoS settings is used to set priority to certain services, it does not have the ability to control bandwidth...

If you want to use the TP-LINK to replace the old Thompson one, the settings on the TP-LINK should be the same as what is with the Thompson. If your ISP is using Dynamic IP as their connection type,...

They both support to print over a Standard TCP/IP port as the port need to be added in order to make the printer sever work. However, as far as I am concerned, the compatibility issue between the...

Try to reset the router by pressing the WPS button for about 10 seconds. You said you could not log into the management page, there may be something wrong with the Local network, make sure that the...