I have verified network connectivity, cleaned up opkg lists, updated package lists, and only haven't adjusted DNS settings because I am not sure where to go to do that. After everything, I still have this issue.
#### Executing package manager
Installing luci-app-openvpn (git-24.319.71435-cd1e372) to root... Downloading http://downloads.openwrt.org/releases/23.05.5/packages/mipsel_24kc/luci/luci-app-openvpn_git-24.319.71435-cd1e372_all.ipk Installing liblua5.1.5 (5.1.5-11) to root... Downloading http://downloads.openwrt.org/releases/23.05.5/packages/mipsel_24kc/base/liblua5.1.5_5.1.5-11_mipsel_24kc.ipk Installing lua (5.1.5-11) to root... Downloading http://downloads.openwrt.org/releases/23.05.5/packages/mipsel_24kc/base/lua_5.1.5-11_mipsel_24kc.ipk Installing luci-lib-nixio (git-24.319.71435-cd1e372) to root... Downloading http://downloads.openwrt.org/releases/23.05.5/packages/mipsel_24kc/luci/luci-lib-nixio_git-24.319.71435-cd1e372_mipsel_24kc.ipk Installing luci-lib-ip (git-24.319.71435-cd1e372) to root... Downloading http://downloads.openwrt.org/releases/23.05.5/packages/mipsel_24kc/luci/luci-lib-ip_git-24.319.71435-cd1e372_mipsel_24kc.ipk Installing luci-lib-jsonc (git-24.319.71435-cd1e372) to root... Downloading http://downloads.openwrt.org/releases/23.05.5/packages/mipsel_24kc/luci/luci-lib-jsonc_git-24.319.71435-cd1e372_mipsel_24kc.ipk Configuring liblua5.1.5. Configuring luci-lib-ip. Configuring lua. Configuring luci-lib-nixio.
##### Errors
Collected errors: * opkg_download: Failed to download http://downloads.openwrt.org/releases/23.05.5/packages/mipsel_24kc/luci/luci-lib-jsonc_git-24.319.71435-cd1e372_mipsel_24kc.ipk, wget returned 4. * opkg_download: Check your network settings and connectivity. * opkg_install_pkg: Failed to download luci-lib-jsonc. Perhaps you need to run 'opkg update'? * opkg_install_cmd: Cannot install package luci-app-openvpn.
root@OpenWrt:~# opkg update
Downloading http://downloads.openwrt.org/releases/23.05.5/targets/ramips/mt7621/packages/Packages.gz
Updated list of available packages in /var/opkg-lists/openwrt_core
Downloading http://downloads.openwrt.org/releases/23.05.5/targets/ramips/mt7621/packages/Packages.sig
Signature check passed.
Downloading http://downloads.openwrt.org/releases/23.05.5/packages/mipsel_24kc/base/Packages.gz
*** Failed to download the package list from http://downloads.openwrt.org/releases/23.05.5/packages/mipsel_24kc/base/Packages.gz
Downloading http://downloads.openwrt.org/releases/23.05.5/packages/mipsel_24kc/luci/Packages.gz
Updated list of available packages in /var/opkg-lists/openwrt_luci
Downloading http://downloads.openwrt.org/releases/23.05.5/packages/mipsel_24kc/luci/Packages.sig
Signature file download failed.
Remove wrong Signature file.
Downloading http://downloads.openwrt.org/releases/23.05.5/packages/mipsel_24kc/packages/Packages.gz
Updated list of available packages in /var/opkg-lists/openwrt_packages
Downloading http://downloads.openwrt.org/releases/23.05.5/packages/mipsel_24kc/packages/Packages.sig
Signature check passed.
Downloading http://downloads.openwrt.org/releases/23.05.5/packages/mipsel_24kc/routing/Packages.gz
Updated list of available packages in /var/opkg-lists/openwrt_routing
Downloading http://downloads.openwrt.org/releases/23.05.5/packages/mipsel_24kc/routing/Packages.sig
Signature check passed.
Downloading http://downloads.openwrt.org/releases/23.05.5/packages/mipsel_24kc/telephony/Packages.gz
Updated list of available packages in /var/opkg-lists/openwrt_telephony
Downloading http://downloads.openwrt.org/releases/23.05.5/packages/mipsel_24kc/telephony/Packages.sig
Signature check passed.
Collected errors:
* opkg_download: Failed to download http://downloads.openwrt.org/releases/23.05.5/packages/mipsel_24kc/base/Packages.gz, wget returned 4.
* opkg_download: Check your network settings and connectivity.
* opkg_download: Failed to download http://downloads.openwrt.org/releases/23.05.5/packages/mipsel_24kc/luci/Packages.sig, wget returned 4.
* opkg_download: Check your network settings and connectivity.
*