upstream server unreachable cause keeping report errors and then crash

[lnc1995]

Prerequisites

• I have checked the Wiki and Discussions and found no answer

• I have searched other issues and found no duplicates

• I want to report a bug and not ask a question or ask for help

• I have set up AdGuard Home correctly and configured clients to use it. (Use the Discussions for help with installing and configuring clients.)

Platform (OS and CPU architecture)

Linux, AMD64 (aka x86_64)

Installation

Docker

Setup

On a router, DHCP is handled by the router

AdGuard Home version

v0.107.48

Action

I set the upstream DNS servers to "h3://8.8.8.8/dns-query" and "h3://1.1.1.1/dns-query" which is actually not reachable in China.
So the AdGuardHome depends on a proxy service to run，once the proxy offline,AdGuardHome will report erorrs crazy and then crash.

Error info : [error] dnsproxy: https://8.8.8.8:443/dns-query: response received over udp: "requesting https://8.8.8.8:443/dns-query: Get_0rtt "https://8.8.8.8:443/dns-query?dns=AAABBB\": timeout: no recent network activity"

Expected result

Maybe the offical can add an option . After detected the upstream server is unavailable, check again every customize mintues rather than checking so frequently.

Actual result

Keeping report erorrs and then crash.

Additional information and/or screenshots

No response

[renatoyamane]

Are you using VPN?
I started to see these timeout erros when using OpenVPN (udp) on the router where the Adguard is also running

[lnc1995]

Are you using VPN? I started to see these timeout erros when using OpenVPN (udp) on the router where the Adguard is also running

Yes,I'm using VPN,like i said , if the VPN down ,AdguardHome will report these errors.