# Win-acme cannot renew cert **URL:** \ **Category:** Help\ **Created:** [June 4, 2020, 2:19pm UTC](https://community.letsencrypt.org/t/win-acme-cannot-renew-cert/124824 "2020-06-04T14:19:37Z")\ **Posts on this page:** 13\ **Page:** 1
**Author:** ![shekster](https://avatars.discourse-cdn.com/v4/letter/s/c89c15/32.png) [@shekster](https://community.letsencrypt.org/u/shekster)\ **Post date:** [June 4, 2020, 2:19pm UTC](https://community.letsencrypt.org/t/win-acme-cannot-renew-cert/124824/1 "2020-06-04T14:19:37Z")
i am using wacs on a windows 2008 IIS server. the installation went flawlessly and the 1st cert was received. now 3 months later the automatic renewal setup is failing with this message: C:\wacs\>wacs --renew --baseuri “[https://acme-v02.api.letsencrypt.org/](https://acme-v02.api.letsencrypt.org/)” [INFO] A simple Windows ACMEv2 client (WACS) [INFO] Software version 2.1.2.641 (RELEASE, PLUGGABLE) [INFO] IIS version 7.5 [INFO] Running with administrator credentials [INFO] Scheduled task looks healthy [INFO] Please report issues at [https://github.com/PKISharp/win-acme](https://github.com/PKISharp/win-acme) **[EROR] Unable to read renewal Jpi86wDGkkKmoiQrl5c8Tg.renewal.json: result is empty** [WARN] No scheduled renewals found. i haven’t found any help online for this issue. does anyone know how to fix this? ---
**Author:** ![rg305](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/rg305/32/91314_2.png) [@rg305](https://community.letsencrypt.org/u/rg305)\ **Post date:** [June 4, 2020, 6:04pm UTC](https://community.letsencrypt.org/t/win-acme-cannot-renew-cert/124824/2 "2020-06-04T18:04:00Z")
> [@shekster](#): > > IIS version 7.5 IIS 7.5 doesn't support SNI. Is there only one site? Have you added any new sites since you got the cert? ---
**Author:** ![shekster](https://avatars.discourse-cdn.com/v4/letter/s/c89c15/32.png) [@shekster](https://community.letsencrypt.org/u/shekster)\ **Post date:** [June 4, 2020, 6:24pm UTC](https://community.letsencrypt.org/t/win-acme-cannot-renew-cert/124824/3 "2020-06-04T18:24:24Z")
yes, just one site being served on the machine. no new sites added. ---
**Author:** ![rg305](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/rg305/32/91314_2.png) [@rg305](https://community.letsencrypt.org/u/rg305)\ **Post date:** [June 4, 2020, 6:43pm UTC](https://community.letsencrypt.org/t/win-acme-cannot-renew-cert/124824/4 "2020-06-04T18:43:23Z")
Try placing a test text file (with no extension) in the expected challenge location. And try accessing it from the Internet: `http://your.domain/.well-known/acme-challenge/test-file-name` And also update to the latest version of wacs. ---
**Author:** ![shekster](https://avatars.discourse-cdn.com/v4/letter/s/c89c15/32.png) [@shekster](https://community.letsencrypt.org/u/shekster)\ **Post date:** [June 5, 2020, 3:46pm UTC](https://community.letsencrypt.org/t/win-acme-cannot-renew-cert/124824/5 "2020-06-05T15:46:31Z")
i downloaded the latest wacs, are there instructions for updating wacs? ---
**Author:** ![rg305](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/rg305/32/91314_2.png) [@rg305](https://community.letsencrypt.org/u/rg305)\ **Post date:** [June 5, 2020, 5:56pm UTC](https://community.letsencrypt.org/t/win-acme-cannot-renew-cert/124824/6 "2020-06-05T17:56:52Z")
[https://www.win-acme.com/](https://www.win-acme.com/) Latest version seems to be 2.1.8.838 Yours is 2.1.2.641 ---
**Author:** ![shekster](https://avatars.discourse-cdn.com/v4/letter/s/c89c15/32.png) [@shekster](https://community.letsencrypt.org/u/shekster)\ **Post date:** [June 5, 2020, 6:46pm UTC](https://community.letsencrypt.org/t/win-acme-cannot-renew-cert/124824/7 "2020-06-05T18:46:24Z")
yes, i have the latest. is there a procedure for upgrading? can’t seem to find anything information on this. ---
**Author:** ![rg305](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/rg305/32/91314_2.png) [@rg305](https://community.letsencrypt.org/u/rg305)\ **Post date:** [June 5, 2020, 8:16pm UTC](https://community.letsencrypt.org/t/win-acme-cannot-renew-cert/124824/8 "2020-06-05T20:16:03Z")
This is all I could find: [https://www.win-acme.com/manual/upgrading/to-v2.1.0](https://www.win-acme.com/manual/upgrading/to-v2.1.0) ---
**Author:** ![shekster](https://avatars.discourse-cdn.com/v4/letter/s/c89c15/32.png) [@shekster](https://community.letsencrypt.org/u/shekster)\ **Post date:** [June 5, 2020, 8:55pm UTC](https://community.letsencrypt.org/t/win-acme-cannot-renew-cert/124824/9 "2020-06-05T20:55:04Z")
thanks, looks like it’s just a straight copy over. so the new version reports pretty much the same error: s\>, referer: [https://secure.mercuri.ca/viewer/index.php?meetingid=438215](https://secure.mercuri.ca/viewer/index.php?meetingid=438215) [Fri Jun 05 16:54:25.227128 2020] [php7:notice] [pid 12948:tid 140400907593472] [client 207.236.151.162:56327] tryserver MULTIMESSAGES received=2, data=\Talker036D50, referer: [https://secure.mercuri.ca/viewer/index.php?meetingid=438215](https://secure.mercuri.ca/viewer/index.php?meetingid=438215) [Fri Jun 05 16:54:25.227149 2020] [php7:notice] [pid 12948:tid 140400907593472] [client 207.236.151.162:56327] tryserver: count=2, returning: \Talker036D50, referer: [https://secure.mercuri.ca/viewer/index.php?meetingid=438215](https://secure.mercuri.ca/viewer/index.php?meetingid=438215) [Fri Jun 05 16:54:25.227270 2020] [php7:notice] [pid 12948:tid 140400907593472] [client 207.236.151.162:56327] tryserver: Socket closed, referer: [https://secure.mercuri.ca/viewer/index.php?meetingid=438215](https://secure.mercuri.ca/viewer/index.php?meetingid=438215) [Fri Jun 05 16:54:25.269757 2020] [php7:notice] [pid 12948:tid 140400907593472] [client 207.236.151.162:56327] PHP Notice: Undefined variable: name in /var/www/html/selfcare/viewer/tryserver.php on line 21, referer: [https://secure.mercuri.ca/viewer/index.php?meetingid=438215](https://secure.mercuri.ca/viewer/index.php?meetingid=438215) ---
**Author:** ![shekster](https://avatars.discourse-cdn.com/v4/letter/s/c89c15/32.png) [@shekster](https://community.letsencrypt.org/u/shekster)\ **Post date:** [June 5, 2020, 8:58pm UTC](https://community.letsencrypt.org/t/win-acme-cannot-renew-cert/124824/10 "2020-06-05T20:58:32Z")
Thanks, seems to just be a copy. seems to report the same error though: C:\wacs\>wacs --renew --baseuri “[https://acme-v02.api.letsencrypt.org/](https://acme-v02.api.letsencrypt.org/)” A simple Windows ACMEv2 client (WACS) Software version 2.1.8.838 (RELEASE, PLUGGABLE) ACME server [https://acme-v02.api.letsencrypt.org/](https://acme-v02.api.letsencrypt.org/) IIS version 7.5 Running with administrator credentials Scheduled task looks healthy Please report issues at [https://github.com/win-acme/win-acme](https://github.com/win-acme/win-acme) Unable to read renewal Jpi86wDGkkKmoiQrl5c8Tg.renewal.json: result is empty No scheduled renewals found. ---
**Author:** ![rg305](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/rg305/32/91314_2.png) [@rg305](https://community.letsencrypt.org/u/rg305)\ **Post date:** [June 5, 2020, 11:53pm UTC](https://community.letsencrypt.org/t/win-acme-cannot-renew-cert/124824/11 "2020-06-05T23:53:23Z")
I guess you will have to go here: > [@shekster](#): > > Please report issues at [GitHub - win-acme/win-acme: A simple ACME client for Windows (for use with Let's Encrypt et al.)](https://github.com/win-acme/win-acme) ---
**Author:** ![shekster](https://avatars.discourse-cdn.com/v4/letter/s/c89c15/32.png) [@shekster](https://community.letsencrypt.org/u/shekster)\ **Post date:** [June 6, 2020, 4:27am UTC](https://community.letsencrypt.org/t/win-acme-cannot-renew-cert/124824/12 "2020-06-06T04:27:50Z")
Thanks for the help 🙂 ---
**Author:** ![system](https://global.discourse-cdn.com/letsencrypt/original/3X/c/a/ca6c06ea1ea201324bba7048c6841ce60236468d.png) [@system](https://community.letsencrypt.org/u/system)\ **Post date:** [July 6, 2020, 4:27am UTC](https://community.letsencrypt.org/t/win-acme-cannot-renew-cert/124824/13 "2020-07-06T04:27:58Z")
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