How to turn on the full network speed
Enter gpedit.msc in Start → Run to open the Group Policy Editor. Find "Computer Configuration → Management Template → Network →QoS Packet Scheduler", select "Restrict Reserved Bandwidth" on the right, select "Properties" to open the dialog box of Restrict Reserved Bandwidth, and select "Enable" to change the original "20" to "0" to release the reserved bandwidth. Suitable for XP system. attempt