已确定关闭Wi-Fi后，流量可以使用。但是只要连上Wi-Fi，CELLULAR-ONLY的规则都显示no route to host
logs:
23:29:44.659644 [Connector] Set up backup connection #2 via CELLULAR-ONLY
23:29:44.659729 [DNS] Use cached DNS result for x. A record count: 4, AAAA record count: 0
23:29:44.661049 [Socket] Connecting with address: x, bound to the specified interface: pdp_ip0
23:29:44.662421 [Socket] Connecting with address: x, bound to the specified interface: pdp_ip0
23:29:44.663598 [Socket] Connecting with address: x, bound to the specified interface: pdp_ip0
23:29:44.664743 [Socket] Connecting with address: x, bound to the specified interface: pdp_ip0
23:29:44.665436 [Connector] Connection setup failed: No route to host (POSIX:65)
