Saturday, May 17, 2008

Mail flow doesn't work if Exchange 2007 Installed on Server 2008 with certain routers


Windows vista and windows Server 2008 have the TCP autotuning setting enabled by default, so if the router is small or outdated maybe it doesn't support that feature, so we have to disable the feature on Server 2008 to make that work, but beware that this will decrease the server performance

Symptom:
Mail flow doesn't work if Exchange 2007 Installed on Server 2008 with certain small routers


Cause:
That's if the router doesn't support TCP autotuning settings in Windows Server 2008.

Resolution:
open RUN==CMD== and type this command

netsh interface tcp set global autotuninglevel=disabled

this will disable the feature and we back in business

here is more info about parameters for that command from MS sites:


The following autotuning settings are available if a router supports TcpWindowScaling:

Disabled: Fix the receive window at its default value.

Highly Restricted: Allow the receive window to grow beyond its default value, but do so very conservatively.

Restricted: Allow the receive window to grow beyond its default value, but limit such growth in some scenarios.

Normal: Allow the receive window to grow to accommodate most scenarios.

Experimental: Allow the receive window to grow to accommodate extreme scenarios.


4 comments:

oakleyses said...

nike free, longchamp pas cher, longchamp outlet, tiffany jewelry, nike free run, replica watches, tory burch outlet, longchamp outlet, christian louboutin, uggs on sale, christian louboutin shoes, michael kors pas cher, nike outlet, jordan shoes, louis vuitton outlet, polo ralph lauren outlet online, ugg boots, polo outlet, prada outlet, oakley sunglasses, sac longchamp pas cher, christian louboutin outlet, replica watches, oakley sunglasses wholesale, oakley sunglasses, louis vuitton outlet, ray ban sunglasses, louboutin pas cher, kate spade outlet, longchamp outlet, tiffany and co, chanel handbags, prada handbags, ray ban sunglasses, ray ban sunglasses, gucci handbags, louis vuitton, louis vuitton outlet, jordan pas cher, louis vuitton, burberry pas cher, polo ralph lauren, air max, nike roshe, ugg boots, oakley sunglasses, nike air max, cheap oakley sunglasses, christian louboutin uk

oakleyses said...

oakley pas cher, hogan outlet, michael kors outlet, michael kors outlet, burberry handbags, sac vanessa bruno, true religion outlet, coach outlet, nike blazer pas cher, nike roshe run uk, vans pas cher, true religion outlet, hollister pas cher, michael kors outlet online, ray ban uk, uggs outlet, lululemon canada, coach outlet store online, nike air max uk, replica handbags, north face uk, ray ban pas cher, new balance, michael kors outlet online, michael kors outlet online, nike tn, nike air max uk, timberland pas cher, nike air max, mulberry uk, kate spade, abercrombie and fitch uk, nike free uk, michael kors outlet online, coach purses, true religion jeans, guess pas cher, north face, true religion outlet, michael kors outlet, nike air force, ralph lauren uk, hollister uk, michael kors, sac hermes, burberry outlet, michael kors, uggs outlet, polo lacoste

oakleyses said...

hollister, beats by dre, lululemon, timberland boots, insanity workout, nike huaraches, p90x workout, iphone cases, soccer jerseys, instyler, nike air max, abercrombie and fitch, wedding dresses, hermes belt, ray ban, ralph lauren, valentino shoes, jimmy choo outlet, chi flat iron, converse outlet, converse, new balance shoes, ferragamo shoes, baseball bats, lancel, reebok outlet, nike roshe run, longchamp uk, mac cosmetics, nike trainers uk, nfl jerseys, ghd hair, soccer shoes, celine handbags, north face outlet, gucci, nike air max, asics running shoes, vans, mont blanc pens, oakley, north face outlet, bottega veneta, babyliss, herve leger, louboutin, mcm handbags, hollister clothing, hollister, vans outlet

oakleyses said...

juicy couture outlet, canada goose uk, karen millen uk, doudoune moncler, wedding dresses, ugg,ugg australia,ugg italia, supra shoes, pandora charms, pandora jewelry, coach outlet, louis vuitton, montre pas cher, canada goose, canada goose jackets, swarovski crystal, canada goose outlet, canada goose outlet, marc jacobs, swarovski, moncler outlet, moncler uk, ugg pas cher, louis vuitton, juicy couture outlet, ugg uk, pandora jewelry, moncler, canada goose outlet, canada goose, louis vuitton, louis vuitton, pandora uk, toms shoes, ugg, moncler, moncler outlet, links of london, thomas sabo, replica watches, louis vuitton, moncler, ugg,uggs,uggs canada, canada goose, hollister, moncler