Hello everyone, I'm experiencing an issue regarding my router connection. I have a router and 2 (sometimes they become 5, or even 6: another desktop pc, a netbook, 2 mobile phones) computers connected via WiFi. One is a MBP mid 2010, the other one is an Acer Notebook. My problem is that when they are bot on the speed decreases, but especially on the acer one, whilst the mbp does well. they are both set for automatic dhcp. I tried to make some speed tests online: Only PC connected Ping 34 ms Download 13.5 Mbps Upload 0.76 Mbps Only MBP connected Ping 31 Download 13.3 Mbps Upload 0.75 Mbps Both MBP and PC connected PC_Ping 30 PC_Download 13.6 Mbps PC_Upload 0.76 Mbps MBP_Ping 30 MBP_Download 14.1 Mbps MBP_Upload 0.75 Mbps I couldn't figure out the issue of being slow, they seemed to work quite good together (i made one test at a time) Then I tried to open 8 YouTube videos on the MBP, and I tried another test on each machine: Both MBP and PC connected, 8 YouTube videos on the MBP PC_Ping 64 PC_Download 5.3 Mbps PC_Upload 0.55 Mbps MBP_Ping 33 MBP_Download 9.04 Mbps MBP_Upload 0.69 Mbps It seemed like the PC suffered much more, even if it was not the one playing videos. Then I tried to contemporarily run two tests. Because of human delay, I couldn't make them start togheter. When the MBP was in Upload phase, the PC was "Download"ing: its speed started falling down, until he reached 3 Mbps; then the MBP finished the test and the PC rose again to around 12 Mbps (in Download). I don't know if it's an IP conflict issue, but both machines are set with automatically get IPs, and they both work together; the problem is that when the MBP is working it gets much more bandwidth, which is not normal. The PC slows a lot, and it's very annoying. The same thing happens when someone uses the Desktop PC: if the MBP is on, it surfs the net really slow. Can anyone help me figure out what my problem is? Do I need to add more information?