Deco M9 Plus Guest Wifi has no internet
I have my Deco M9 Plus running in router mode. IPv4 enabled V6 disabled. VLAN disabled. DDNS disabled and SIP ALG and UPNP enabled. I have a PiHole providing DNS services in the same network and the DNS server address of the PiHole is given as Primary DNS in DHCP Server. Deco is 192.168.1.1 and PiHole is 192.168.1.17. I have 22.214.171.124 and 126.96.36.199 as the primary and secondary DNS address in IPv4 seetings.
My guest wifi has no internet connection. I couldn't find relevant information on how to handle this issue. Any help is appreciated.