Hello,
Double check if it’s DoT or DoH that your router supports, you say DoH in the subject but DoT in the description.
If it’s DoT, please ensure that your DoT configuration in the router matches the same “private dns” setting that you use in your Android device. Do not try DoH settings for the DoT configuration and vice versa.
DoH looks like: https://cloud.blokada.org/your_id/
DoT looks like: your_id.cloud.blokada.org
You also mention that you use WireGuard on your android which makes me assume you’re a Blokada Plus user.
Then you might want to try running WireGuard on Windows, which includes the Blokada Cloud settings even if your router doesn’t want to play along. This will also improve your security as all traffic will be encrypted before it leaves your PC.
Thank you for supporting Blokada!