curl 进行 https 时不时的就连接不到 curl: (35) Recv failure: Connection reset by peer

[superboss01]

* Host xxxxxx.com:443 was resolved.
* IPv6: 2606:4700:3032::ac43:baf6, 2606:4700:3030::6815:13a2
* IPv4: 172.67.186.246, 104.21.19.162
* Trying 172.67.186.246:443...
* Trying [2606:4700:3032::ac43:baf6]:443...
* Immediate connect fail for 2606:4700:3032::ac43:baf6: Network is unreachable
* Trying [2606:4700:3030::6815:13a2]:443...
* Immediate connect fail for 2606:4700:3030::6815:13a2: Network is unreachable
* Connected to xxx.com (172.67.186.26) port 443
* ALPN: curl offers h2,http/1.1
* TLSv1.3 (OUT), TLS handshake, Client hello (1):
* CAfile: /etc/ssl/certs/ca-certificates.crt
* CApath: /etc/ssl/certs
* Recv failure: Connection reset by peer
* OpenSSL SSL_connect: Connection reset by peer in connection to p.qs-pays.com:443
* Closing connection
curl: (35) Recv failure: Connection reset by peer

经常就重置了，不知道如何解决，2 台服务器 A 和 B ，前置 cloudflare 进行的 ssl(证书也是 cf 的，完全模式）
ubuntu 6.8.0-31-generic (24 还是 20 版本） ，php7.4 nginx php-fpm

现在就是 a 请求 b 经常连接不上

不知道如何解决

[NewYear]

UA 是什么，有可能是 SSL 指纹和 UA 对不上。

[superboss01]

@NewYear 现在又稳定没有这种情况发生了