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My Solution to "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Posted by: David Mills
Date: February 18, 2006 02:22AM

What eventually worked for me was to remove my password from MySql so that I could log on with only a Username. PHP then connected without the error. I went back and re-instated my passowrd in MySql and PHP still connected. Prior to finding this solution I had used the OLD_PASSWORD() function, but that had not cured the problem, but may have helped with the cure when I removed and re-instated the password.

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"mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
joape382
November 20, 2004 04:28AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Brian Stepanek
November 20, 2004 09:56PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
guillermo scharffenorth
November 24, 2004 12:20PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Stephen Unwin
November 24, 2004 02:23PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Stephen Unwin
November 24, 2004 02:32PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
ron
December 15, 2004 12:14PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
anthony katgert
December 30, 2005 05:40PM
Lighten up, man!
Philip Shanks
December 31, 2005 12:02AM
Re: Lighten up, man!
anthony katgert
December 31, 2005 02:28AM
Re: Lighten up, man!
Lenz Grimmer
March 29, 2006 03:12AM
Re: Lighten up, man!
Anuj Garg
March 24, 2007 02:58PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
r ruthers
April 29, 2006 07:09PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
christopher stubban
October 03, 2006 08:08AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
christopher stubban
October 03, 2006 08:06AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Peter Flynn
October 10, 2006 06:29AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Eduardo Duran
April 17, 2007 06:43PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
mikel gorge
September 10, 2008 08:27AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Werner Kirchner
February 26, 2005 04:10AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Russell Sykes
December 11, 2004 10:25PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Janto .
December 13, 2004 11:05AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
John son
April 29, 2008 11:36PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Krzysztof Kepinski
June 12, 2008 04:08AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
ron
December 15, 2004 09:43AM
SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
mglatts
January 07, 2005 12:12AM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Palomares
January 30, 2005 02:18PM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Carlos Bergueira
March 09, 2005 06:18AM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Mark Herraghty
January 03, 2006 07:14PM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
danscow
February 03, 2005 07:37PM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Michael Kilpatrick
February 06, 2005 04:23PM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
flamtriplets_2000
February 12, 2005 12:56PM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
David Massey
February 20, 2005 09:04PM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Kym Harper
September 01, 2005 05:38PM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
vlad
February 24, 2005 03:15PM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Regan DeDiana
April 17, 2005 04:00PM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Priya Venkat
July 10, 2005 07:23AM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
derek crabtree
October 28, 2005 02:53AM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
je lopez
November 28, 2005 05:40PM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
U Khan
February 15, 2006 05:08AM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
rahul wa
May 30, 2007 12:21PM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Jen Winter
February 12, 2005 10:54PM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Richard Hawkes
February 28, 2005 01:46AM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Riaz Ahammed
April 01, 2005 05:47AM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
edrizzle
April 08, 2005 11:01PM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
mike adams
April 28, 2005 06:37AM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Ekincan Karalar
May 03, 2005 05:03AM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Victor Henrique G. Almaraz
May 05, 2005 12:57AM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Salman Awan
August 07, 2005 11:44AM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Muhammad Taqveem
January 03, 2006 12:48AM
Don't forget to also...
Iain Hunneybell
January 03, 2006 07:48AM
THIS WORKED ON A MAC / OS X - THANK YOU!!
Andrea Pacor
January 17, 2006 11:49PM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Budak Hadop
March 10, 2006 08:28AM
Other causes of error 1251
iDonny
March 16, 2006 10:03AM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Zaphod Breeblebrox
May 16, 2006 06:37PM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
spam
September 03, 2006 11:21AM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Peter Flynn
October 10, 2006 06:59AM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Bill Karwin
October 10, 2006 06:19PM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Nicki
December 21, 2006 11:39AM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
sonny stevenson
February 08, 2007 07:38PM
Re: SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
rakhmat ichsan
March 22, 2007 03:44AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Ryasat Ali
February 18, 2005 12:39AM
Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Tim Rohrbaugh
February 23, 2005 10:49PM
SOLUTION "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Simon Orr
January 26, 2005 11:59PM
Re: SOLUTION "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Ryasat Ali
February 18, 2005 12:49AM
Re: SOLUTION "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Anthony Hook
July 29, 2005 11:25AM
Re: SOLUTION "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Hy Chanhan
January 15, 2006 05:20AM
Re: SOLUTION "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Hy Chanhan
January 15, 2006 05:27AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Vishnu Vundavalli
February 01, 2005 11:51PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Gheorghe Iuga
February 15, 2005 12:20AM
Step-by-step solution
tom tom
November 02, 2005 07:38AM
Re: Step-by-step solution
Oliver Dow
January 16, 2006 03:46PM
Re: Step-by-step solution
Hariprasad R
July 24, 2006 07:40AM
Re: Step-by-step solution
Jason Whitlow
March 28, 2006 11:18PM
Step-by-step solution!!!
tom tom
August 23, 2006 01:21PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
jeeet handa
April 28, 2006 05:38AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Adrian Perez Vales
November 23, 2004 06:38AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Adrian Perez Vales
November 24, 2004 04:14AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
guillermo scharffenorth
November 24, 2004 11:58AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Snaggs5899
November 28, 2004 06:09AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Jeremy Leipzig
November 29, 2004 08:57PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Matt Cartwright
November 30, 2004 09:14AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Marcin Paluch
December 03, 2004 06:24AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Eugene Sesonga
December 29, 2004 05:48PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
prasanth reddy
June 26, 2005 08:30AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
ed kwok
December 29, 2004 07:47PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Travis Weir
December 13, 2004 10:15AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Iain Hosking
December 17, 2004 01:54AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Malcolm Debono
January 12, 2005 05:20PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
big
December 04, 2004 08:51AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
joe flem
December 14, 2004 04:11PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
C.Y. Chen
December 15, 2004 12:14AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Janto .
December 15, 2004 07:20AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Insanedarkness
December 15, 2004 07:30PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
tribe.3
December 17, 2004 06:43PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Mark Kayser
December 20, 2004 09:39AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
NightWalker Unknown
December 23, 2004 05:55AM
Solution using MySQL Administrator
Frank De Luca
December 23, 2004 04:45PM
Re: Solution using MySQL Administrator
Chris Beaty
January 04, 2005 03:24AM
Re: Solution using MySQL Administrator
Hans Stoelting
January 06, 2005 04:12PM
Re: Solution using MySQL Administrator
David Skelton
January 15, 2005 09:47AM
Re: Solution using MySQL Administrator
Tony Julien
February 27, 2005 04:32AM
Re: Solution using MySQL Administrator
Bartosz Nowak
June 08, 2005 07:08AM
Re: Solution using MySQL Administrator
phil houlyman
December 03, 2005 01:47PM
Re: Solution using MySQL Administrator
Jeff Parrott
December 10, 2005 05:31PM
Re: Solution using MySQL Administrator
truword kapamara
June 19, 2007 01:30PM
Re: Solution using MySQL Administrator
Konstantinos Papadakis
August 07, 2007 03:15AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Jae Hammett
January 05, 2005 08:59PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
aleestevenson
January 16, 2005 08:11PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Mark Rosenthal
January 17, 2005 05:10PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
tezandbabs
January 20, 2005 09:00PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
carlturton1974
January 21, 2005 12:55PM
************Frank De Luca's Article Worked for me **********
Bob Builder
January 22, 2005 05:03AM
Re: ************Frank De Luca's Article Worked for me **********
Adegoke Aruna
February 26, 2005 01:11PM
Re: ************Frank De Luca's Article Worked for me **********
Matt EatMeMYSQL
April 03, 2007 03:47PM
Re: "Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Nelson La Rocca
January 27, 2005 06:37AM
Re: "Client does not support authentication protocol requested by server; consider upgrading MySQL client"
dELE OMOtSOHO
January 27, 2005 08:16AM
Re: "Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Adegoke Aruna
February 26, 2005 11:56AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Ramon Sosa
February 02, 2005 11:28AM
Re: "mysql_connect(): Client does not support .... ANSWER"
Pat Hayzlett
February 06, 2005 11:34PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Victor Erazo
February 18, 2005 05:28PM
Other Solution : Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Frédéric LEROY
February 20, 2005 11:47AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Lee Phillips
February 21, 2005 04:43AM
Re: "mysql_connect(): SOLVED - SOLUTION
net cruizer
March 23, 2005 02:43PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
foo
April 07, 2005 12:12AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
tom tom
November 01, 2005 05:11PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
qsayeed
April 22, 2005 07:47AM
On Linux Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Joon Kim
June 07, 2005 03:11PM
Re: "mysql_connect(): Client does not support authentication... SOLUTION LINUX
Matthew Szubrycht
August 11, 2005 08:21PM
SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Fernando Cabal
November 07, 2005 10:46PM
SOLUTION: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Fernando Cabal
November 07, 2005 10:55PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Myke Stubbs
November 28, 2005 01:56PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
A T
December 26, 2005 08:00PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Rodrigo Palmeiro
January 11, 2006 01:05AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
jonathan avrancsev
March 07, 2006 04:08PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Labidur Rahman
January 24, 2006 03:23AM
SOLUTION: Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Theophilus Kotey
January 26, 2006 05:46AM
EASY SOLUTION ! : Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Michael Kachel
February 17, 2006 10:02AM
My Solution to "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
David Mills
February 18, 2006 02:22AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Mags Ingval
March 09, 2006 10:17PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
rcolumb
May 26, 2006 05:55PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; --> libmysql.dll
robert fritz
September 13, 2006 04:11AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Terry James
October 08, 2006 10:26AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Bill Karwin
October 09, 2006 01:31PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
khalid jack
October 14, 2006 12:18AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
brendan
October 30, 2006 11:50PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
brendan
October 31, 2006 03:20PM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
jiten solanki
March 08, 2007 03:46AM
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Marco Cuvero
May 30, 2008 07:56AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
Sriram Sampath
July 31, 2008 09:53AM
Re: "mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client"
molchun molchun
August 04, 2008 02:42PM


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