Strange Upload Problem on Hyper-V

hi, 1 driving me totally nuts.

i have being trying upload file www.virustotal.com (its harmless exe have since found out - diskwipe.exe diskwipe.org). using ie8.

from win 7 and win 2008 r2 datacenter (which i select to boot vhd's) onto main machine hardware, , on another win 7 pc elsewhere on network, when upload file virustotal.com works perfectly. so, using native nic's fine. using machine perfect. right.

ok, boot menu default main development machine - 1 i'm typing on now. runs on metal , has hyper-v role , have guests. guests not running.

amazingly, from my console (root partition exact) or _any_ guest os 2003 /xp / 2008 r2 etc. upload virustotal.com slows @ 32% hangs @ 38.something% & never finishes!!

here kicker. have another box (my main server) running hyper-v on metal  and 3 live guests. identical h/w main dev machine in room. (except os datacenter - mine enterprise).   if try , upload bare metal console or guest file virustotal.com using ie8 stops exactly in same place!!

as "steps have tried etc." kind-of blown out of water server box doing precise same thing machine in room here.

ok, comonalities: mobo: gigabyte ga-x58-ud5, 12gb kingston ram, corei7 920 4 cores hyperthreading = 8 & realtek rtl8168d/8111d family pci-e gigabit ethernet nic's.

all 3 machines have same motherboard - revision f11 bios, have 12gb ram, have realtek nic's. x64 way mentioned before have win 7 box ud5 m/board, 12 gb ram - bit of overkill. :-)

all these machines when not running hyper-v can upload file. perhaps may try on hyepr-v (2008 r2) yourselves ie8 , desktop experience on. see if works or fails you. root os or guest.

so, looking nic + hyper-v = cannot upload file (any file must add.) realtek nic ver 7.002.1125.2008. using ie8

i see in nic settings there usual parameters jumbo frames / checksum offloading etc. several others. should fiddle these?

i ran netmon 3.3 in guest , tcp session halted upload failed. suppose study further. dont have netmon on root partition machine (yet)!

all os's patched - including todays defender files. box running office 2007 - identical server in room not.

also, if fire vpn distant client , upload works! of course different network path.

suggestions welcome please. if left out important - please yell @ me.

many thanks,

ring0

 

 

 

 

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kebugcheck(42);

ok, unrelated issue (but seems cause)!!!!!   i messing around daydreaming wonder how netgear fvs318 nat overhead slowing broadband cable.

did tests , cut long story short. nat on netgear wired firewall not fast. download speed more doubled when connected cable modem direct server-to-wan.

ok, ordered new fvs318g claiming 25 mbps lan wan. modem 2009 designed small business router/spi firewall. used usual netgear web page in shock. improved , has excellent config. + more features.

installed today , _very_ happy results. wan lan downloads have more doubled. 3 times faster (almost).

a few mins ago thought "i wonder"..... so tried upload diskwipe.exe virustotal.com. worked perfectly!!!

so, don't want put old fvs318 clunker in - test.

i happy forget strange nat + hyper-v + virustotal - whatever timing issue. (or maybe virustotal.com tweaked upload routine yesterday).

amazing.

i predict people (average mom/dad/kids family), as faster , faster broadband may, never see importance of high speed nat devices. sure, wireless "n" faster speeding bullet.    loosing with slow nat processing. wonder.????

thanks read & replied.

problem - gone!

ring0

 

 

 

 

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kebugcheck(42);

Windows Server  >  Hyper-V