DL-WRX36 IPv6 issue

I have a Dynalink DL-WRX36 with Openwrt 24.10.0 running.

My clients (Archlinux/CachyOS, Android TV) except my Samsung Android smartphone do not get an IPv6 address. What should I do?

Let's have a look at the settings.

Please run the following commands (copy-paste the whole block) and paste the output here, using the "Preformatted text </> " button:
grafik
Remember to redact passwords, MAC addresses and any public IP addresses you may have

ubus call system board; \
uci export network; uci export wireless; \
uci export dhcp; uci export firewall; \
ip -6 addr ; ip -6 ro li tab all ; ip -6 ru; \
ls -l  /etc/resolv.* /tmp/resolv.* /tmp/resolv.*/* ; head -n -0 /etc/resolv.* /tmp/resolv.* /tmp/resolv.*/*

The problem has been solved. There was a problem with my ISP.