using the same mobile modem, the desktop gets less than 10mbit/s down & about 10mbit/s up. yet the smartphone has gotten as high as 40mbit/s down & 80mbit/s up. the smartphone consistently gets 70+ mbit/s up. both of the signals show excellent strength (full bars). i've done what i could with rts & fragmentation to get the crc errors as low as possible on the desktop (i've tried turning them off too). i think the phone is using an n type wifi connection, because doesn't g stop at 54mbit connection link? the phone says 65mbit/s & the desktop says 72.2mbit/s transmit & 65mbit/s receive. i used the tcp analyzer on speedguide.net & while the mtu size & mss size is the same, the rwin sizes aren't the same. the unscaled receive window on the phone is 229 the unscaled receive window on the desktop is 65340 (chrome) & 65535 (edge). the time to live is different & the default rwin size is different, everything else is the same (except for browsers). i've tried all the different auto-tuning levels. i've disabled the auto-tuning & changed the value in the registry (didn't work). i added the global rwin registry value (didn't work). is there anything i can do to get the same speeds on the desktop that the phone is getting? (there isn't an option to plug the mobile modem directly into the computer to test) there isn't any setting in the modem that limits the speed of the desktop. all i can think of is it's the difference of the unscaled rwin size & finding out how to disable auto-tune & attempt to input a new rwin value manually in the registry wasn't easy to find in the search results (there aren't a lot of people talking about it to say the least). tried both the default rwin value & the unscaled rwin value (in case the little one was too small). not only do i want the speed on the desktop, i need it too because netflix struggles to stream in HD & even my magicjack has hiccups during calls (doesn't end the call, just dropouts). i went as far as buying a newer generation magicjack only to find out every single problem with the old one exists with the new one (dialup modem noise whenever somebody calls & i answer the call .. a bit delayed pending ack at the beginning of the call causing a moment at the beginning of every call to experience a gap of silence both ways .. every once in a while a call shows up on the caller id as missed but the phone didn't ring, or the number doesn't show up at all & the phone doesn't ring .. sometimes calling the magicjack, it says it is unavailable & goes straight to voicemail even though the software is up & running). then there's the fact of browsing the internet is basically too slow. i mean, my mother & i both got a core2quad processor (same model number) & we are both using windows 10 home .. i'm on 64bit with 8gb of ram & she is on 32bit with 1gb of ram (her other ram slot died about a month after installing the refurbished motherboard & it is really a 2gb stick but i've got her using the onboard graphics card because of how many watts it uses compared to a pci-e gpu) her pages load up snappy & lightning quick .. yet my computer is a lot more sluggish with pauses sometimes going 2-3 seconds. both computers are running fresh operating system installs. the one i'm on now is about a month anda half old. i haven't installed much either. i don't think it is a 32bit vs 64bit issue because sometimes at night when the desktop speeds go up, i've seen pages load snappy. missing 70mbit/s of internet speed is massive & i'm at quite a loss after learning the registry values don't work. i've read somewhere before (i think it was a speedguide.net guide) about sometimes the manual input into the registry editor won't work, but you can do it from command prompt or powershell - are there any commands for changing the rwin using either of those?