[宽带症候群] 我的上海电信宽带昨天开始拿不到 IPv6 前缀，求大佬支招

我是用的自购的光猫和 Mikrotik hAP ax2 路由器，光猫是桥接的，用路由器拨号。位置在鹤沙航城。

昨天凌晨断网将近一分钟，我重置 PPPoE 密码之后重拨连上了（不知道是不是无效操作），重连之后公网 IPv4 变成了 58.37 网段，Active AC name 变成了 SH-SH-GD-VBASCP-1.NMAN.V6000，然后就发现拿不到 IPv6 前缀了。

IPv6 配置为

/ipv6 dhcp-client add 
    add-default-route=yes 
    allow-reconfigure=no 
    check-gateway=none 
    default-route-distance=1 
    default-route-tables=main 
    dhcp-options="" 
    dhcp-options="" 
    disabled=no 
    interface="China Telecom" 
    pool-name=ipv6_pool 
    pool-prefix-length=60 
    prefix-address-lists="" 
    prefix-hint=::/60 
    request=prefix 
    use-interface-duid=yes 
    use-peer-dns=no 
    validate-server-duid=no

打开 dhcp, packet, debug 日志看到如下输出：

 2025-07-17 01:06:47 dhcp,debug,packet send China Telecom -> ff02::1:2%29
 2025-07-17 01:06:47 dhcp,debug,packet type: solicit
 2025-07-17 01:06:47 dhcp,debug,packet transaction-id: 5ba3d8
 2025-07-17 01:06:47 dhcp,debug,packet  -> clientid:   00030001 00000000 0000
 2025-07-17 01:06:47 dhcp,debug,packet  -> elapsed_time: 0
 2025-07-17 01:06:47 dhcp,debug,packet  -> rapid_commit: [empty]
 2025-07-17 01:06:47 dhcp,debug,packet  -> ia_pd: 
 2025-07-17 01:06:47 dhcp,debug,packet    t1: 0
 2025-07-17 01:06:47 dhcp,debug,packet    t2: 0
 2025-07-17 01:06:47 dhcp,debug,packet    id: 0x9
 2025-07-17 01:06:47 dhcp,debug,packet   -> ia_prefix: 
 2025-07-17 01:06:47 dhcp,debug,packet     prefix: ::/60
 2025-07-17 01:06:47 dhcp,debug,packet     valid time: 0
 2025-07-17 01:06:47 dhcp,debug,packet     pref. time: 0
 2025-07-17 01:06:48 dhcp,debug,packet send China Telecom -> ff02::1:2%41
 2025-07-17 01:06:48 dhcp,debug,packet type: solicit
 2025-07-17 01:06:48 dhcp,debug,packet transaction-id: 5ba3d8
 2025-07-17 01:06:48 dhcp,debug,packet  -> clientid:   00030001 00000000 0000
 2025-07-17 01:06:48 dhcp,debug,packet  -> elapsed_time: 1
 2025-07-17 01:06:48 dhcp,debug,packet  -> rapid_commit: [empty]
 2025-07-17 01:06:48 dhcp,debug,packet  -> ia_pd: 
 2025-07-17 01:06:48 dhcp,debug,packet    t1: 0
 2025-07-17 01:06:48 dhcp,debug,packet    t2: 0
 2025-07-17 01:06:48 dhcp,debug,packet    id: 0x9
 2025-07-17 01:06:48 dhcp,debug,packet   -> ia_prefix: 
 2025-07-17 01:06:48 dhcp,debug,packet     prefix: ::/60
 2025-07-17 01:06:48 dhcp,debug,packet     valid time: 0
 2025-07-17 01:06:48 dhcp,debug,packet     pref. time: 0
 2025-07-17 01:06:49 dhcp,debug,packet     secs = 20
 2025-07-17 01:06:49 dhcp,debug,packet     ciaddr = 0.0.0.0
 2025-07-17 01:06:49 dhcp,debug,packet     chaddr = D4:01:C3:37:A1:13
 2025-07-17 01:06:49 dhcp,debug,packet     Host-Name = "MikroTik"
 2025-07-17 01:06:49 dhcp,debug,packet     Msg-Type = discover
 2025-07-17 01:06:49 dhcp,debug,packet     Parameter-List = Subnet-Mask,Classless-Route,Router,Static-Route,Dom
ain-Server,NTP-Server,CAPWAP-Server,Vendor-Specific
 2025-07-17 01:06:49 dhcp,debug,packet     Client-Id = 01-D4-01-C3-37-A1-13

也试着给电信装维师傅发了短信，把宽带编号发他之后，就再没回复了。