orangekaic

Late post but I actually found out what the problem was. My desktop needed a winsock reset. I don't remember what the tcp/ip reset lines were, but you can type in an elevated cmd netsh winsock reset and then reboot.

I might as well add that I have checked to see that hardware offloading is enabled on my USG-3P, and whether QoS-related services were running on the network (IPS/DPI/Smart Queue all disabled).

I was running it to fast, speedtest.net, and dslreports I tried using iperf with the problematic Desktop as the client and another laptop as the server after your suggestion. I'm getting similar results. [ ID] Interval Transfer Bandwidth [ 4] 0.00-1.00 sec 14.1 MBytes 118 Mbits/sec [ 4] 1.00-2.00 sec 14.8 MBytes 124 Mbits/sec [ 4] 2.00-3.00 sec 15.2 MBytes 128 Mbits/sec [ 4] 3.00-4.00 sec 14.9 MBytes 125 Mbits/sec [ 4] 4.00-5.00 sec 14.9 MBytes 125 Mbits/sec [ 4] 5.00-6.00 sec 14.9 MBytes 125 Mbits/sec [ 4] 6.00-7.00 sec 15.0 MBytes 126 Mbits/sec [ 4] 7.00-8.00 sec 14.8 MBytes 124 Mbits/sec [ 4] 8.00-9.00 sec 14.9 MBytes 125 Mbits/sec [ 4] 9.00-10.00 sec 15.2 MBytes 128 Mbits/sec - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bandwidth [ 4] 0.00-10.00 sec 149 MBytes 125 Mbits/sec sender [ 4] 0.00-10.00 sec 148 MBytes 125 Mbits/sec receiver

So I just moved into a new home and have been setting up the internet here, but it seems like my desktop does not like the new internet environment. Originally, I tested to see if it was the Ubiquiti gear I had set up, but every other hardwired device was getting the expected 500-600 Mbps whereas the desktop was getting somewhere between 140-180 Mbps. This result stays consistent among the devices whether I plug the connection directly into the modem, USG-3P (Router), or US-16-150W (Switch). The Desktop in question is using a Realtek GBE Family Controller with a confirmed 1.0 Gbps LAN connection on both the UniFi controller and the native Windows 10 Network Adapter Properties. This is what I have tried so far: ipconfig /flushdns Used both ISP and Google DNS Enabled/disabled QoS Packet Scheduler service Updating Realtek Drivers via Realtek's site Used MSI Live Update to update drivers By the way, the upstream for this desktop is actually the expected amount (25Mbps), which makes it all the more confusing for me. So far, my Googling has failed me. Any troubleshooting ideas?