DHCP Server Error

RouterOS Beginner Basics
1

Help For Problem !

Dear all,

I have a problem about DHCP in client device. I have set in mikrotik about dhcp. But the problem, if client device (PC/Laptop) reboot the status in DHCP Lease is “waiting”.
It must disable and enable network card, so the status be “bound”.
I lock the client with mac address.

help me for this problem.


thank’s

2

Waiting means the Mikrotik DHCP server have not received DHCP request from this client.

If the client has to disable and enable NIC, then the problem is at the client side. if it is a windows PC, would ipconfig /renew help?
or /release , then /renew?

3

Do you mean that the nic card in the PC has a fixed IP address and fixed DNS server? (not get automatically)?

4

Router:

/system logging topics=dhcp

Process of elimination:


  1. MAC “lock”: unlock whatever it is you did with the MAC. If it works, then you know it is this, or what do you mean?
  2. Device: test with a different device
  3. Connection logical type: check with another network or a different band (2.4GHz/5GHz)
  4. Connection physical type: change Ethernet port or check Ethernet wired connection if using wireless
  5. Interface host: test with a USB Ethernet adapter to laptop. If you want to buy one, apparently the AX88772A chipset ones also work with the USB on Mikrotik devices
  6. Drivers: Get Ethernet drive model and version and laptop model. Check for driver updates from manufacturer and Microsoft
  7. OS: reboot with a Linux usb or live cd like Ubuntu

Monitor traffic with a packet analyzer on the device like Wireshark and filter for “bootp”.

5

check that mac address dont actually somehow change. in a dynamic bridge. its common to change mac.