ZyXEL Communications ES 3500 Series - Symptom Of Troubleshooting

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2 Symptom of Troubleshooting
Following are some common issue symptom report from customer, according to the
symptoms of these problems, you can follow the below step and it will help you
speed up to identify the cause of the problem.
1. Switch randomly crash.
Troubleshooting Step:
l Crash
2. Abnormal Status with PWR, SYS, ALM LED
Troubleshooting Step:
l HW Monitor
3. PC cannot communicate with other devices.
Troubleshooting Step:
l VLAN
l LoopGuard
l IP Source Guard
l Routing
l ACL
4. Client cannot get ip address from DHCP Server
Troubleshooting Step:
l VLAN
l LoopGuard
l IP Source Guard
l DHCP Server
l DHCP Relay
l ACL