同一wifi 笔记本连接不稳定 但手机却正常

Question

安卓手机和笔记本连的都是同一Wifi， 为什么笔记本就老是断呢？ 原因是什么呢？
很多同事改插网线了 但是Mac没有网口啊 想用有线都用不了

下面是笔记本网络异常的时候 连局域网都超时

➜  ~ ping 192.168.1.121
PING 192.168.1.121 (192.168.1.121): 56 data bytes
ping: sendto: Host is down
ping: sendto: Host is down
Request timeout for icmp_seq 0
ping: sendto: Host is down
Request timeout for icmp_seq 1
ping: sendto: Host is down
Request timeout for icmp_seq 2
ping: sendto: Host is down
Request timeout for icmp_seq 3
ping: sendto: Host is down
Request timeout for icmp_seq 4
ping: sendto: Host is down
Request timeout for icmp_seq 5
ping: sendto: Host is down
Request timeout for icmp_seq 6
ping: sendto: Host is down
Request timeout for icmp_seq 7