I'm trying to figure out why my htpc is suffering at streaming videos from the net. htpc is running Windows 7 SP1 with all the patches etc., except the annoying Windows 10 stuff. (I've not upgraded this to 10 nor do I plan to as it is an htpc using MediaCenter.) htpc Configuration OS: Windows 7 Home Premium x64 Motherboard: Gigabyte GA-890GPA-UD3H, 2.6GHz BIOS: Award FE, 09/30/2010 Chipset: AMD 890GX CPU: AMD Athlon II X4 600e, 2.2GHz, AM3 RAM - 8 GB:Patriot DDR3, 2GB, PC3-8500F, 533MHz (x2)Crucial DDR3, 2GB, PC3-10700H, 667MHz (x2)Video - HDMIAMD Radeon HD 6850, 1GB GDDR5, 1GHzDrives:2TB Western Digital HDD SATA 2 (WD20EARS-00S8B1)RAID 0, 1TB Seagate SATA 2 (SG31000538AS)TV Tuner:Hauppauge WinTV-HVR-2250 dual-tuner ATSC Another computer to which I've been comparing it (brawn) has since been upgraded to Windows 10 but even when brawn was running Windows 7 SP1, it never exhibited any issues with lag or bandwidth. brawn Configuration OS: Windows 10 Pro x64 Motherboard: Asrock Z97 Extreme6 BIOS: American Megatrends P1.70 12/17/2014 Chipset: Intel Z97 CPU: Intel i7-4790 3.6GHz LGA 1150 RAM - 8 GB:G.Skill DDR3 4GB PC14900 800MHz (x2) [F3-14900CL9D-8GBSR]Video - DVI/VGA, dual monitorZodac (Nvidia) GeForce GT 640Drives - C: 240GB NTFS; D: - 465GB NTFS; I: - 465GB ReFS; J: - 700GB ReFS; K: - 700GB NTFS:250GB Samsung SSD 850 EVO SATA 3500GB Samsung SSD 850 EVO SATA 3 (x3)750GB Samsung HDD 753LJ SATA 2 (x3) I recognize that brawn is a more powerful computer but I don't think the processing power difference accounts for what I am seeing in the network results -- read on... I did a test with htpc sitting in the same room as the router and brawn. I ran BitMeterOS to monitor bandwidth and streamed the same movie from Amazon prime (Maggie). I ran the tests with htpc over both WiFi (5Ghz) and the ethernet and the results/bandwidth was comparable, really no significant difference -- lagging occurs in both cases. On brawn, results were smooth with zero lag. On htpc, it lagged periodically -- a skip about every 10 seconds. Looking at the attached files, it shows brawn averaging 351 kB/s with consistent 1 MB/s spikes while htpc is averaging 1.68 MB/s with inconsistent 4-6 MB/s spikes. Questions Can you help me understand why htpc is apparently pulling down more data for the same movie as brawn? Can you help me understand why, despite this, htpc is lagging but brawn is not?