Config looks ok to me... Does the " running" indicator ever stop? Mine only takes 5-10 seconds to finish and say Status / Version: enabled / 4.1.5, along with the next line showing Blocked domains: 337,434 or some big number.
Try logread -e adblock and see if there are any messages that would indicate there's some problem with the loading process.
The running indicator never stops
There doesn't seem to be anything in the logs that tells me what is going wrong. Previous (yesterday) I would get that the service would not start.
mp_base: /tmp, tmp_dir: /tmp/tmp.OpOnmm, sort_options: --temporary-directory=/tmp/tmp.OpOnmm --compress-program=gzip --parallel=1, pid_file: /var/run/adblock.pid
Fri Mar 31 23:03:39 2023 user.debug adblock-4.1.5[23284]: f_main ::: memory: 124/84/67, cores: 1, safe_search: 0, force_dns: 0, awk: /usr/bin/awk
Fri Mar 31 23:03:39 2023 user.debug adblock-4.1.5[23284]: f_list ::: name: iplist, mode: iplist, cnt: 0, in_rc: 0, out_rc: 0
Fri Mar 31 23:03:40 2023 user.debug adblock-4.1.5[23284]: f_list ::: name: blacklist, mode: blacklist, cnt: 0, in_rc: 0, out_rc: 0
Fri Mar 31 23:03:40 2023 user.debug adblock-4.1.5[23284]: f_list ::: name: whitelist, mode: whitelist, cnt: 1, in_rc: 0, out_rc: 0
Fri Mar 31 23:03:48 2023 user.debug adblock-4.1.5[23284]: f_list ::: name: adaway, mode: download, cnt: 7355, in_rc: 0, out_rc: 0
Fri Mar 31 23:03:48 2023 user.debug adblock-4.1.5[23284]: f_list ::: name: adaway, mode: backup, cnt: 7355, in_rc: 0, out_rc: 0
Sat Apr 1 15:08:16 2023 user.debug adblock-4.1.5[29173]: f_report ::: action: json, top_count: 10, res_count: 50, search: +, dump_util: /usr/sbin/tcpdump, rep_dir: /tmp/adblock-Report, rep_iface: br-lan, rep_listen: 53, rep_chunksize: 1, rep_chunkcnt: 5, rep_resolve: 0
Sat Apr 1 15:08:46 2023 user.debug adblock-4.1.5[29270]: f_report ::: action: gen, top_count: 10, res_count: 50, search: , dump_util: /usr/sbin/tcpdump, rep_dir: /tmp/adblock-Report, rep_iface: br-lan, rep_listen: 53, rep_chunksize: 1, rep_chunkcnt: 5, rep_resolve: 0
Sat Apr 1 15:08:47 2023 user.debug adblock-4.1.5[29384]: f_report ::: action: json, top_count: 10, res_count: 50, search: +, dump_util: /usr/sbin/tcpdump, rep_dir: /tmp/adblock-Report, rep_iface: br-lan, rep_listen: 53, rep_chunksize: 1, rep_chunkcnt: 5, rep_resolve: 0
Sat Apr 1 15:10:19 2023 user.debug adblock-4.1.5[29519]: f_report ::: action: gen, top_count: 10, res_count: 50, search: , dump_util: /usr/sbin/tcpdump, rep_dir: /tmp/adblock-Report, rep_iface: br-lan, rep_listen: 53, rep_chunksize: 1, rep_chunkcnt: 5, rep_resolve: 0
Sat Apr 1 15:10:20 2023 user.debug adblock-4.1.5[29628]: f_report ::: action: json, top_count: 10, res_count: 50, search: +, dump_util: /usr/sbin/tcpdump, rep_dir: /tmp/adblock-Report, rep_iface: br-lan, rep_listen: 53, rep_chunksize: 1, rep_chunkcnt: 5, rep_resolve: 0
Sat Apr 1 15:12:33 2023 user.debug adblock-4.1.5[29898]: f_dns ::: dns: dnsmasq, dns_dir: /tmp/dnsmasq.d, dns_file: adb_list.overall, dns_user: dnsmasq, dns_instance: 0, backup: 1, backup_dir: /tmp/adblock-Backup, jail_dir: /tmp
Sat Apr 1 15:12:33 2023 user.debug adblock-4.1.5[29898]: f_fetch ::: fetch_util: /bin/uclient-fetch, fetch_parm: --timeout=20 -O
After I restarted now I got this
Sat Apr 1 15:55:48 2023 user.info adblock-4.1.5[30982]: adblock instance started ::: action: restart, priority: 0, pid: 30982
Sat Apr 1 15:55:49 2023 user.debug adblock-4.1.5[30982]: f_jsnup ::: status: running, cnt: , mail: 0, mail_service: /etc/adblock/adblock.mail, mail_cnt: 0, mail_pid: -
Sat Apr 1 15:55:49 2023 user.debug adblock-4.1.5[30982]: f_uci ::: config: dhcp, change:
Sat Apr 1 15:55:52 2023 user.debug adblock-4.1.5[30982]: f_uci ::: config: firewall, change: firewall.adblock_wan53='redirect' firewall.adblock_wan53.name='Adblock DNS (wan, 53)' firewall.adblock_wan53.src='wan' firewall.adblock_wan53.proto='tcp udp' firewall.adblock_wan53.src_dport='53' firewall.adblock_wan53.dest_port='53' firewall.adblock_wan53.target='DNAT' firewall.adblock_wan53.family='any' firewall.adblock_wan853='redirect' firewall.adblock_wan853.name='Adblock DNS (wan, 853)' firewall.adblock_wan853.src='wan' firewall.adblock_wan853.proto='tcp udp' firewall.adblock_wan853.src_dport='853' firewall.adblock_wan853.dest_port='853' firewall.adblock_wan853.target='DNAT' firewall.adblock_wan853.family='any' firewall.adblock_wan5353='redirect' firewall.adblock_wan5353.name='Adblock DNS (wan, 5353)' firewall.adblock_wan5353.src='wan' firewall.adblock_wan5353.proto='tcp udp' firewall.adblock_wan5353.src_dport='5353' firewall.adblock_wan5353.dest_port='5353' firewall.adblock_wan5353.target='DNAT' firewall.adblock_wan5353.f
Sat Apr 1 15:55:52 2023 user.debug adblock-4.1.5[30982]: f_temp ::: tmp_base: /tmp, tmp_dir: /tmp/tmp.coBDkj, sort_options: --temporary-directory=/tmp/tmp.coBDkj --compress-program=gzip --parallel=1, pid_file: /var/run/adblock.pid
Sat Apr 1 15:55:53 2023 user.debug adblock-4.1.5[30982]: f_main ::: memory: 124/81/64, cores: 1, safe_search: 0, force_dns: 1, awk: /usr/bin/awk
Sat Apr 1 15:55:53 2023 user.debug adblock-4.1.5[30982]: f_list ::: name: iplist, mode: iplist, cnt: 0, in_rc: 0, out_rc: 0
Sat Apr 1 15:55:54 2023 user.debug adblock-4.1.5[30982]: f_list ::: name: blacklist, mode: blacklist, cnt: 2, in_rc: 0, out_rc: 0
Sat Apr 1 15:55:54 2023 user.debug adblock-4.1.5[30982]: f_list ::: name: whitelist, mode: whitelist, cnt: 1, in_rc: 0, out_rc: 0
Sat Apr 1 15:56:01 2023 user.debug adblock-4.1.5[30982]: f_list ::: name: adaway, mode: download, cnt: 7355, in_rc: 0, out_rc: 0
Sat Apr 1 15:56:01 2023 user.debug adblock-4.1.5[30982]: f_list ::: name: adaway, mode: backup, cnt: 7355, in_rc: 0, out_rc: 0
Sat Apr 1 15:56:51 2023 user.debug adblock-4.1.5[30982]: f_list ::: name: adguard, mode: download, cnt: 49710, in_rc: 0, out_rc: 0
Sat Apr 1 15:56:51 2023 user.debug adblock-4.1.5[30982]: f_list ::: name: adguard, mode: backup, cnt: 49710, in_rc: 0, out_rc: 0
Sat Apr 1 15:57:49 2023 user.debug adblock-4.1.5[30982]: f_list ::: name: anti_ad, mode: download, cnt: 67942, in_rc: 0, out_rc: 0
Sat Apr 1 15:57:50 2023 user.debug adblock-4.1.5[30982]: f_list ::: name: anti_ad, mode: backup, cnt: 67942, in_rc: 0, out_rc: 0
Sat Apr 1 15:57:54 2023 user.debug adblock-4.1.5[30982]: f_list ::: name: disconnect, mode: download, cnt: 2735, in_rc: 0, out_rc: 0
Sat Apr 1 15:57:54 2023 user.debug adblock-4.1.5[30982]: f_list ::: name: disconnect, mode: backup, cnt: 2735, in_rc: 0, out_rc: 0
Sat Apr 1 15:58:00 2023 user.debug adblock-4.1.5[30982]: f_list ::: name: yoyo, mode: download, cnt: 3749, in_rc: 0, out_rc: 0
Sat Apr 1 15:58:00 2023 user.debug adblock-4.1.5[30982]: f_list ::: name: yoyo, mode: backup, cnt: 3749, in_rc: 0, out_rc: 0
Sat Apr 1 15:58:01 2023 user.debug adblock-4.1.5[30982]: f_list ::: name: -, mode: merge, cnt: 88361, in_rc: 4, out_rc: 0
Sat Apr 1 15:58:30 2023 user.debug adblock-4.1.5[30982]: f_tld ::: source: /tmp/tmp.coBDkj/adb_list.overall, cnt: 88361, cnt_tld: 77662
Sat Apr 1 15:58:39 2023 user.debug adblock-4.1.5[30982]: f_list ::: name: -, mode: final, cnt: 77662, in_rc: 4, out_rc: 0
Sat Apr 1 15:59:16 2023 user.debug adblock-4.1.5[30982]: f_dnsup ::: dns: dnsmasq, cache_cmd: -, lookup_cmd: /usr/bin/nslookup, lookup_domain: example.com, restart_rc: 0, dns_flush: 0, dns_timeout: 20, dns_cnt: 21, in_rc: 0, out_rc: 4
Sat Apr 1 15:59:16 2023 user.err adblock-4.1.5[30982]: dns backend restart with adblock blocklist failed
It doesn't say why the restart fails
Edit: Oh I know that example.com doesn't work for me in general - is there a way to change it from example.com to something else?
Just check the online readme....the option is called 'adb_lookupdomain'.
Changed it to google and now it works! Just as another random question, do you have any idea why example.com doesn't work for some ISPs? I only discovered this through a totally unrelated incident, where example.com doesn't load for my ISP but works if I use another ISP/proxy. If I hadn't discovered that I would have probably never figured this out.
Thanks for your help!
Hi, i'm using simple-adblock and wants to block facebook site. need Help
This is for AdBlock thread and not for simple-adblock. They are different packages.
Hi, i'm using tp-link router with RAM of 128mb
i want to block some sites for clients on lan and wifi
i installed adblock but i dont know how it works ....
Need Help in this task...
Thanks in Advance
He uses a dated archer model (crossposting in another thread) with 128 MB RAM, I think he means flash size ... 
thanks for correcting me
I do hope you also installed luci-app-adblock for easier management. You just need to add the domains you want to block in the "Edit Blocklist" section.
Then just Reload/Restart Adblock from the Overview tab.
i have done this ... still able to access it
In the other thread you said the opposite - which is true? Anyway, please show us the output of ...
nslookup twitter.com (on the client)
/etc/init.d/adblock query twitter.com (on the router)
Thanks!
on Router:
on client:
its working now... have to reload adblock after every change wait for some seconds.
One more question please...
can we block sites for specific ips like blocking some sites for kids?
Thanks
OISD domain is incorporated inside it's own blocklist... Ahahaha.. But why!?? 
root@BlackBunnyBravo1Conan /root [#]# /etc/init.d/adblock query oisd.nl
:::
::: domain 'oisd.nl' in active blocklist
:::
+ oisd.nl
:::
::: domain 'oisd.nl' in backups and black-/whitelist
:::
+ adb_list.oisd_big.gz big-check.oisd.nl
+ adb_list.oisd_nsfw.gz oisd.nl
+ adb_list.oisd_nsfw.gz nsfw-check.oisd.nl
How can i block instagram at all?
i blocked with blacklist, can not enter instagram with browser but app working well.
i want to block on instagram app too
The mobile app might be using a different domain. What domain this you use to block the web site?
i added this domains to blacklist:
cdninstagram.com
ig.me
instagram.com
instagram.c10r.facebook.com
instagram.com
help.instagram.com
blog.instagram.com
platform.instagram.com
business.instagram.com
l.instagram.com
about.instagram.com
engineering.instagram.com
api.instagram.com
developers.instagram.com
i.instagram.com
z-p42.www.instagram.com
badges.instagram.com
hyperlapse.instagram.com
graph.instagram.com
photos-a.ak.instagram.com
distilleryimage2.ak.instagram.com
z-p3.www.instagram.com
distilleryimage4.ak.instagram.com
preprod.instagram.com
photos-b.ak.instagram.com
wellbeing.instagram.com
photos-d.ak.instagram.com
images.instagram.com
z-p15.www.instagram.com
community.instagram.com
photos-h.ak.instagram.com
photos-e.ak.instagram.com
m.instagram.com
distilleryimage6.instagram.com
photos-f.ak.instagram.com
distilleryimage9.instagram.com
grammys.instagram.com
distilleryimage10.instagram.com
images.ak.instagram.com
z-p4.www.instagram.com
www.instagram.com
privacycenter.instagram.com
parents.instagram.com
safety.instagram.com
lookaside.instagram.com
distilleryvesper2-2.ak.instagram.com
geo-p15.instagram.com
fc.instagram.com
g.instagram.com
auth.instagram.com
brand.instagram.com
iglite-p42.c10r.instagram.com
www.trunkstable.instagram.com
d.ish.instagram.com
instagram.c10r.facebook.com
api.instagram.com
black.ish.instagram.com
i.instagram.com
instagram-shv-01-ams2.fbcdn.net
instagram-shv-01-ams3.fbcdn.net
instagram-shv-01-ash5.fbcdn.net
instagram-shv-01-atl1.fbcdn.net
instagram-shv-01-bru2.fbcdn.net
instagram-shv-01-cai1.fbcdn.net
instagram-shv-01-cdg2.fbcdn.net
instagram-shv-01-dfw1.fbcdn.net
instagram-shv-01-fra3.fbcdn.net
instagram-shv-01-gru1.fbcdn.net
instagram-shv-01-hkg2.fbcdn.net
instagram-shv-01-iad3.fbcdn.net
instagram-shv-01-kul1.fbcdn.net
instagram-shv-01-lax1.fbcdn.net
instagram-shv-01-lga1.fbcdn.net
instagram-shv-01-lhr3.fbcdn.net
instagram-shv-01-mad1.fbcdn.net
instagram-shv-01-mia1.fbcdn.net
instagram-shv-01-mxp1.fbcdn.net
instagram-shv-01-nrt1.fbcdn.net
instagram-shv-01-ord1.fbcdn.net
instagram-shv-01-sea1.fbcdn.net
instagram-shv-01-sin1.fbcdn.net
instagram-shv-01-sjc2.fbcdn.net
instagram-shv-01-syd1.fbcdn.net
instagram-shv-01-tpe1.fbcdn.net
instagram-shv-01-vie1.fbcdn.net
instagram-shv-02-cai1.fbcdn.net
instagram-shv-02-hkg2.fbcdn.net
instagram-shv-03-ash5.fbcdn.net
instagram-shv-03-atn1.fbcdn.net
instagram-shv-03-hkg1.fbcdn.net
instagram-shv-03-lla1.fbcdn.net
instagram-shv-03-prn2.fbcdn.net
instagram-shv-03-xdc1.fbcdn.net
instagram-shv-04-hkg1.fbcdn.net
instagram-shv-06-atn1.fbcdn.net
instagram-shv-06-lla1.fbcdn.net
instagram-shv-07-ash4.fbcdn.net
instagram-shv-07-frc3.fbcdn.net
instagram-shv-09-frc1.fbcdn.net
instagram-shv-09-lla1.fbcdn.net
instagram-shv-12-frc1.fbcdn.net
instagram-shv-12-frc3.fbcdn.net
instagram-shv-12-lla1.fbcdn.net
instagram-shv-12-prn1.fbcdn.net
instagram-shv-13-frc1.fbcdn.net
instagram-shv-17-prn1.fbcdn.net
instagram-shv-18-prn1.fbcdn.net
instagram.com
instagramstatic-a.akamaihd.net
instagramstatic-a.akamaihd.net.edgesuite.net
logger.instagram.com
platform.instagram.com
scontent-iad3-1.cdninstagram.com
scontent.cdninstagram.com
telegraph-ash.instagram.com
white.ish.instagram.com
www.instagram.com
Based on my test, it's impossible to block the instgram app. It looks like it's directly calling ig api's through IP rather than using a domain