# Persistent SSL Certificate Error for WWW Subdomain on YunoHost Server
**URL:** https://forum.yunohost.org/t/persistent-ssl-certificate-error-for-www-subdomain-on-yunohost-server/25887
**Category:** Support
**Tags:** security, english
**Created:** [August 7, 2023, 1:13pm UTC](https://forum.yunohost.org/t/persistent-ssl-certificate-error-for-www-subdomain-on-yunohost-server/25887 "2023-08-07T13:13:42Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@thelaserguy](https://forum.yunohost.org/u/thelaserguy)
#### Post date: [August 7, 2023, 1:13pm UTC](https://forum.yunohost.org/t/persistent-ssl-certificate-error-for-www-subdomain-on-yunohost-server/25887/1 "2023-08-07T13:13:42Z")
Hey YunoHost Forum Community,
I’m encountering a persistent SSL certificate error for the WWW subdomain on my YunoHost server. Despite running system updates and diagnostics, the issue lingers.
I issued the SSL certificate using the web-admin, and HTTP is set to force HTTPS. The error affects all domains hosted with YunoHost. I’ve checked /etc/yunohost/certs, web-admin settings, and verified the server date and firewall settings.
I kindly request your expertise to identify the root cause and help me find a suitable solution. Your assistance is immensely appreciated.
**Server Details:**
- **Hardware:** Lenovo M82 i5-3470, 8GB RAM, 500GB SSD
- **Internet:** Gigabit fiber from Bell Canada
- **Hosting:** At home
- **Access:** SSH, webadmin, direct access
**Issue Details:**
- Persistent SSL certificate error for the WWW subdomain on all hosted domains.
- System updates performed and diagnostics show no major issues (ignoring non-relevant items).
- Server date and firewall settings have been verified.
**Troubleshooting Steps Taken:**
- Ran system updates and diagnostics (results show as “okay”).
- Checked /etc/yunohost/certs and web-admin settings.
- HTTP set to force HTTPS.
- SSL certificate issued using web-admin.
- Confirmed that DNS record flagged as missing in diagnostics exists in the zone file.
- Verified server date and checked firewall settings.
**Request for Assistance:** Despite the above efforts, the SSL certificate error for the WWW subdomain persists. I kindly request assistance in identifying the root cause and finding a suitable solution. Any additional troubleshooting steps or insights would be highly appreciated.
**Note:** Your support and guidance in resolving this persistent SSL certificate error are greatly appreciated. Thank you for your assistance.
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### Author:  [@nrgill28](https://forum.yunohost.org/u/nrgill28)
#### Post date: [August 8, 2023, 7:02am UTC](https://forum.yunohost.org/t/persistent-ssl-certificate-error-for-www-subdomain-on-yunohost-server/25887/2 "2023-08-08T07:02:37Z")
I had this issue while experimenting with YunoHost the other day as well. For some reason it seems that even when the primary domain correctly uses a LetsEncrypt SSL certificate, the www subdomain continues to serve the self-signed one. The workaround I found was to explicitly add `www.yourdomain.xyz` as a secondary domain in the admin panel and request another certificate for that one as well.
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### Author:  [@thelaserguy](https://forum.yunohost.org/u/thelaserguy)
#### Post date: [August 8, 2023, 1:46pm UTC](https://forum.yunohost.org/t/persistent-ssl-certificate-error-for-www-subdomain-on-yunohost-server/25887/3 "2023-08-08T13:46:57Z")
Did you also have to assign to the WWW the application running on the [toplevel.com](http://toplevel.com)?
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### Author:  [@nrgill28](https://forum.yunohost.org/u/nrgill28)
#### Post date: [August 8, 2023, 4:54pm UTC](https://forum.yunohost.org/t/persistent-ssl-certificate-error-for-www-subdomain-on-yunohost-server/25887/4 "2023-08-08T16:54:44Z")
I didn’t need to change the default application for the subdomain. After requesting certificates, it just redirected to the root domain which is what I wanted.
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### Author:  [@system](https://forum.yunohost.org/u/system)
#### Post date: [September 7, 2023, 4:55pm UTC](https://forum.yunohost.org/t/persistent-ssl-certificate-error-for-www-subdomain-on-yunohost-server/25887/5 "2023-09-07T16:55:25Z")
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