DHCP problem with 2.9.33

RouterOS General
1

After upgrade DHCP servers on wireless devices show as invalid and will not assign an address.

Hydro

2

Send support output file to the support (support@Mikrotik.com).
Make sure that you have configured DHCP-server for bridge (if you are using bridge), check that ‘/ip address’ contains correct address for the interface DHCP is enabled on.

3

I sent 2 of them to you and the one named support2 has now been downgraded back to .32 and is working fine.

Hydro

4

i think i have the same problem…
in the log says: dhcp1: failed to add arp entry for IP xxx.xxx.xxx.xxx: no interface provided (6)

and in dhcp server, dhcp1 appears with an “I” (invalid)

5

i disabled and then enable the dhcp server and the I (invalid) flag dissapeared and is working fine, until i reboot… dhcp appears as Invalid again until i disable / enable server

6

I had a (perhaps related?) problem yesterday:

When trying to configure a DHCP server on a virtual-ap interface (ROS 2.9.32), it always was shown as “invalid” (and didn’t work), although the config was correct.
I didn’t take the time to take a sup-out, though…

Best regards,
Christian Meis

7

I have the same problem with 2.9.33. It was OK with 2.9.32


–Tom

8

I do suggest not to update anymore until they patched another 50 version… maybe then later give it a try… I stopped doing that since 2.9.28… lots of weird things going on since then

9

I tried the disable and re-enable, no luck here.

Hydro

10

Bug was introduced in RouterOS version 2.9.33 and will be fixed in
2.9.34.

Workaround (has to be done once after every reboot):

  1. disable all hotspot servers;
  2. disable all dhcp servers;
  3. disable all dhcp relays;
  4. wait at least 12s (optional - may work without waiting as well);
  5. enable back dhcp servers;
  6. enable back dhcp relays;
  7. enable back hotspot servers;
11

thanks, for your answered...this morning i downloaded ...33. and will cancel to updates...if not, maybe all client is.....

regards
Hasbullah.com

12

Just installed version 2.9.34… it fixed the problem.

Regards…ƒil

13

i upgraded to 2.9.34 and after reboot i get this console error:

Uncompressing Linux…
ran out of input data
----System halted

how can i fix it?

14

I think you should re-install RouterOS…

Best regards,
Christian Meis

15

but why this happens?

16

I have no idea - what system is this?
A RB532? Some x86 system?

Sounds like the system package got corrupted or something like that (initrd seems to be damaged).

Best regards,
Christian Meis

17

it´s an x86 system

hd is has errors…

18

Same problem with DHCP after upgrading Wi-Fi card. Damn! Solutions from here don’t work. Any workaround?

19

Bside, have you upgraded router to 2.9.35 version or you changed wireless card ?
provide us with more detailed information.