The hotel network cannot automatically obtain the general route of IP hotel. There is a master switch below, and then a switch is connected to the master switch every two floors.

1, first check whether the range of the address pool is enough.

2. When the address of 169 appears, check whether other machines on the switch are also 169. If so, please check the switch or upper-level equipment.

3. Check the switch with 169 to see if there is network storm caused by line loop. If there is nothing wrong with the equipment, check the superior equipment.

If full-time automatic access, some machines can't get it, maybe the address pool is not enough or the network is impassable, and it still doesn't work after manual designation, probably because the network is impassable.