# Suddenly unable to reach YunoHost user interface, Admin panel fully functional **URL:** https://forum.yunohost.org/t/suddenly-unable-to-reach-yunohost-user-interface-admin-panel-fully-functional/28355 **Category:** Support **Tags:** english **Created:** [February 3, 2024, 2:35pm UTC](https://forum.yunohost.org/t/suddenly-unable-to-reach-yunohost-user-interface-admin-panel-fully-functional/28355 "2024-02-03T14:35:13Z") **Posts on this page:** 1 **Showing post:** 19
### Author: ![Tech\_Geek97](https://forum.yunohost.org/user_avatar/forum.yunohost.org/tech_geek97/32/9395_2.png) [@Tech\_Geek97](https://forum.yunohost.org/u/Tech_Geek97) #### Post date: [February 5, 2024, 11:50pm UTC](https://forum.yunohost.org/t/suddenly-unable-to-reach-yunohost-user-interface-admin-panel-fully-functional/28355/19 "2024-02-05T23:50:16Z")
Hi wbk, Thanks to your reply I have figured it out! I had recently reinstalled Nextcloud [due to the issue I describe in this thread](https://forum.yunohost.org/t/issue-upgrading-nextcloud-app-via-web-ui/28230/7) This led to a reset on all authorized clients. A nextcloud android app with auto-upload enabled was making endless authentication attempts causing a fail2ban block on the IP, in this case my router’s IP which was sending all the LAN requests due to hairpin NAT. I was able to discover this as the issue followed that android device. I had considered fail2ban before, but based on [this YunoHost documentation page](https://yunohost.org/en/fail2ban), and SSH being unaffected led me to rule it out initially as I believed that fail2ban only affected SSH connections, which is not the case. Manually removing the IPs from jail (as well as adding a whitelist entry for my router’s IP for future resiliency) has solved the issue. I have also removed my local DNS server so that I have 1 less service to manage, but I am sure it would have continued to work fine with it in place. I will report back if I run into further issues, but I do not expect any. Thanks to everybody for their help it is greatly appreciated! --- _[View the full topic](https://forum.yunohost.org/t/suddenly-unable-to-reach-yunohost-user-interface-admin-panel-fully-functional/28355)._