DHCP Server do not works when running AdGuard with non-priviledged user

I found some tips to run AdGuard Home with non-priviledged user.

After install it with

curl -s -S -L https://raw.githubusercontent.com/AdguardTeam/AdGuardHome/master/scripts/install.sh | sudo sh -s -- -v

I accessed the web interface, made all configurations and then

sudo chown -R admin:admin /opt/AdGuardHome /var/log/AdGuardHome*

followed by changing /etc/systemd/system/AdGuardHome.service to

[Unit]
Description=AdGuard Home: Network-level blocker
ConditionFileIsExecutable=/opt/AdGuardHome/AdGuardHome
After=syslog.target network-online.target

[Service]
User=admin
Group=admin
StartLimitInterval=5
StartLimitBurst=10
ExecStartPre=+/sbin/setcap CAP_NET_BIND_SERVICE=+eip /opt/AdGuardHome/AdGuardHome
ExecStart=/opt/AdGuardHome/AdGuardHome "-s" "run"

WorkingDirectory=/opt/AdGuardHome

StandardOutput=file:/var/log/AdGuardHome.out
StandardError=file:/var/log/AdGuardHome.err

Restart=always

RestartSec=10
EnvironmentFile=-/etc/sysconfig/AdGuardHome

[Install]
WantedBy=multi-user.target

Rebooted and everything works fine except the DHCP server. None of my devices can get an IP address.

I reverted to the original /etc/systemd/system/AdGuardHome.service because I need the DHCP server working.

Any ideas of what can be the problem?

admin@proxmox:/opt/AdGuardHome$ ll
total 35M
-rwxrwxrwx 1 admin admin  35M Jul 13 10:16 AdGuardHome
-rw-rw-rw- 1 admin admin  331 Jul 13 10:16 AdGuardHome.sig
-rw-r--r-- 1 root  root  4.8K Jul 18 16:18 AdGuardHome.yaml
-rw-r--r-- 1 admin admin  44K Jul 13 10:16 CHANGELOG.md
drwxr-xr-x 3 admin admin 4.0K Jul 18 02:18 data
-rw-r--r-- 1 root  root  1.3K Jul 18 16:36 leases.db
-rw-r--r-- 1 admin admin  35K Jul 13 10:16 LICENSE.txt
-rw-r--r-- 1 admin admin  23K Jul 13 10:16 README.md
admin@proxmox:/opt/AdGuardHome$
admin@proxmox:/opt/AdGuardHome$ ./AdGuardHome -v --version
AdGuard Home
Version: v0.107.8
Channel: release
Go version: go1.17.12
Commit time: 2022-07-13 09:24:17 -0300 -03
GOOS: linux
GOARCH: amd64
Race: false
Dependencies:
        github.com/AdguardTeam/dnsproxy@v0.43.1 (sum: h1:E777KfQAi+VurOoWEdGQ5iqjSOOAzzbTfLOEzj8heCs=)
        github.com/AdguardTeam/golibs@v0.10.8 (sum: h1:diU9gP9qG1qeLbAkzIwfUerpHSqzR6zaBgzvRMR/m6Q=)
        github.com/AdguardTeam/urlfilter@v0.16.0 (sum: h1:IO29m+ZyQuuOnPLTzHuXj35V1DZOp1Dcryl576P2syg=)
        github.com/NYTimes/gziphandler@v1.1.1 (sum: h1:ZUDjpQae29j0ryrS0u/B8HZfJBtBQHjqw2rQ2cqUQ3I=)
        github.com/aead/chacha20@v0.0.0-20180709150244-8b13a72661da (sum: h1:KjTM2ks9d14ZYCvmHS9iAKVt9AyzRSqNU1qabPih5BY=)
        github.com/aead/poly1305@v0.0.0-20180717145839-3fee0db0b635 (sum: h1:52m0LGchQBBVqJRyYYufQuIbVqRawmubW3OFGqK1ekw=)
        github.com/ameshkov/dnscrypt/v2@v2.2.3 (sum: h1:X9UP5AHtwp46Ji+sGFfF/1Is6OPI/SjxLqhKpx0P5UI=)
        github.com/ameshkov/dnsstamps@v1.0.3 (sum: h1:Srzik+J9mivH1alRACTbys2xOxs0lRH9qnTA7Y1OYVo=)
        github.com/beefsack/go-rate@v0.0.0-20220214233405-116f4ca011a0 (sum: h1:0b2vaepXIfMsG++IsjHiI2p4bxALD1Y2nQKGMR5zDQM=)
        github.com/cheekybits/genny@v1.0.0 (sum: h1:uGGa4nei+j20rOSeDeP5Of12XVm7TGUd4dJA9RDitfE=)
        github.com/digineo/go-ipset/v2@v2.2.1 (sum: h1:k6skY+0fMqeUjjeWO/m5OuWPSZUAn7AucHMnQ1MX77g=)
        github.com/fsnotify/fsnotify@v1.5.4 (sum: h1:jRbGcIw6P2Meqdwuo0H1p6JVLbL5DHKAKlYndzMwVZI=)
        github.com/go-ping/ping@v0.0.0-20211130115550-779d1e919534 (sum: h1:dhy9OQKGBh4zVXbjwbxxHjRxMJtLXj3zfgpBYQaR4Q4=)
        github.com/google/go-cmp@v0.5.7 (sum: h1:81/ik6ipDQS2aGcBfIN5dHDB36BwrStyeAQquSYCV4o=)
        github.com/google/gopacket@v1.1.19 (sum: h1:ves8RnFZPGiFnTS0uPQStjwru6uO6h+nlr9j6fL7kF8=)
        github.com/google/renameio@v1.0.1 (sum: h1:Lh/jXZmvZxb0BBeSY5VKEfidcbcbenKjZFzM/q0fSeU=)
        github.com/google/uuid@v1.3.0 (sum: h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=)
        github.com/insomniacslk/dhcp@v0.0.0-20220405050111-12fbdcb11b41 (sum: h1:Yg3n3AI7GoHnWt7dyjsLPU+TEuZfPAg0OdiA3MJUV6I=)
        github.com/josharian/native@v1.0.0 (sum: h1:Ts/E8zCSEsG17dUqv7joXJFybuMLjQfWE04tsBODTxk=)
        github.com/kardianos/service@v1.2.1 (sum: h1:AYndMsehS+ywIS6RB9KOlcXzteWUzxgMgBymJD7+BYk=)
        github.com/lucas-clemente/quic-go@v0.27.1 (sum: h1:sOw+4kFSVrdWOYmUjufQ9GBVPqZ+tu+jMtXxXNmRJyk=)
        github.com/marten-seemann/qtls-go1-17@v0.1.1 (sum: h1:DQjHPq+aOzUeh9/lixAGunn6rIOQyWChPSI4+hgW7jc=)
        github.com/mdlayher/ethernet@v0.0.0-20220221185849-529eae5b6118 (sum: h1:2oDp6OOhLxQ9JBoUuysVz9UZ9uI6oLUbvAZu0x8o+vE=)
        github.com/mdlayher/netlink@v1.6.0 (sum: h1:rOHX5yl7qnlpiVkFWoqccueppMtXzeziFjWAjLg6sz0=)
        github.com/mdlayher/raw@v0.0.0-20211126142749-4eae47f3d54b (sum: h1:MHcTarUMC4sFA7eiyR8IEJ6j2PgmgXR+B9X2IIMjh7A=)
        github.com/mdlayher/socket@v0.2.3 (sum: h1:XZA2X2TjdOwNoNPVPclRCURoX/hokBY8nkTmRZFEheM=)
        github.com/miekg/dns@v1.1.49 (sum: h1:qe0mQU3Z/XpFeE+AEBo2rqaS1IPBJ3anmqZ4XiZJVG8=)
        github.com/patrickmn/go-cache@v2.1.0+incompatible (sum: h1:HRMgzkcYKYpi3C8ajMPV8OFXaaRUnok+kx1WdO15EQc=)
        github.com/pkg/errors@v0.9.1 (sum: h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=)
        github.com/ti-mo/netfilter@v0.4.0 (sum: h1:rTN1nBYULDmMfDeBHZpKuNKX/bWEXQUhe02a/10orzg=)
        github.com/u-root/uio@v0.0.0-20220204230159-dac05f7d2cb4 (sum: h1:hl6sK6aFgTLISijk6xIzeqnPzQcsLqqvL6vEfTPinME=)
        go.etcd.io/bbolt@v1.3.6 (sum: h1:/ecaJf0sk1l4l6V4awd65v2C3ILy7MSj+s/x1ADCIMU=)
        golang.org/x/crypto@v0.0.0-20220411220226-7b82a4e95df4 (sum: h1:kUhD7nTDoI3fVd9G4ORWrbV5NY0liEs/Jg2pv5f+bBA=)
        golang.org/x/net@v0.0.0-20220425223048-2871e0cb64e4 (sum: h1:HVyaeDAYux4pnY+D/SiwmLOR36ewZ4iGQIIrtnuCjFA=)
        golang.org/x/sync@v0.0.0-20210220032951-036812b2e83c (sum: h1:5KslGYwFpkhGh+Q16bwMP3cOontH8FOep7tGV86Y7SQ=)
        golang.org/x/sys@v0.0.0-20220422013727-9388b58f7150 (sum: h1:xHms4gcpe1YE7A3yIllJXP16CMAGuqwO2lX1mTyyRRc=)
        golang.org/x/text@v0.3.7 (sum: h1:olpwvP2KacW1ZWvsR7uQhoyTYvKAupfQrRGBFM352Gk=)
        gopkg.in/natefinch/lumberjack.v2@v2.0.0 (sum: h1:1Lc07Kr7qY4U2YPouBjpCLxpiyxIVoxqXgkXLknAOE8=)
        gopkg.in/yaml.v2@v2.4.0 (sum: h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=)
        howett.net/plist@v1.0.0 (sum: h1:7CrbWYbPPO/PyNy38b2EB/+gYbjCe2DXBxgtOOZbSQM=)
admin@proxmox:/opt/AdGuardHome$
admin@proxmox:/opt/AdGuardHome$ neofetch
         .://:`              `://:.            admin@proxmox
       `hMMMMMMd/          /dMMMMMMh`          -------------
        `sMMMMMMMd:      :mMMMMMMMs`           OS: Proxmox VE 7.2-7 x86_64
`-/+oo+/:`.yMMMMMMMh-  -hMMMMMMMy.`:/+oo+/-`   Host: Nitro AN515-51 V1.22
`:oooooooo/`-hMMMMMMMyyMMMMMMMh-`/oooooooo:`   Kernel: 5.15.39-1-pve
  `/oooooooo:`:mMMMMMMMMMMMMm:`:oooooooo/`     Uptime: 7 hours, 20 mins
    ./ooooooo+- +NMMMMMMMMN+ -+ooooooo/.       Packages: 697 (dpkg)
      .+ooooooo+-`oNMMMMNo`-+ooooooo+.         Shell: bash 5.1.4
        -+ooooooo/.`sMMs`./ooooooo+-           Resolution: 1920x1080
          :oooooooo/`..`/oooooooo:             Terminal: /dev/pts/0
          :oooooooo/`..`/oooooooo:             CPU: Intel i7-7700HQ (8) @ 3.800GHz
        -+ooooooo/.`sMMs`./ooooooo+-           GPU: NVIDIA GeForce GTX 1050 Ti Mobile
      .+ooooooo+-`oNMMMMNo`-+ooooooo+.         GPU: Intel HD Graphics 630
    ./ooooooo+- +NMMMMMMMMN+ -+ooooooo/.       Memory: 1210MiB / 15886MiB
  `/oooooooo:`:mMMMMMMMMMMMMm:`:oooooooo/`
`:oooooooo/`-hMMMMMMMyyMMMMMMMh-`/oooooooo:`
`-/+oo+/:`.yMMMMMMMh-  -hMMMMMMMy.`:/+oo+/-`
        `sMMMMMMMm:      :dMMMMMMMs`
       `hMMMMMMd/          /dMMMMMMh`
         `://:`              `://:`