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gberg

failed to renew DHCP, rebinding

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Since I restarted my UNRAID yestrday the log keep telling failed to renew DHCP, rebinding...

I'm not noticing any isued other than the errors in the log, and I haven't seen this occured before. 

Any ideas?

 

My UNRAID have static mapping in the pfSense DHCP

 

Here are the last couple of occurrences:

 

Oct 11 10:21:53 UNRAID dhcpcd[1698]: br0: failed to renew DHCP, rebinding

Oct 11 10:21:53 UNRAID dhcpcd[1698]: br0: truncated packet (77) from 192.168.15.12

Oct 11 10:21:53 UNRAID dhcpcd[1698]: br0: truncated packet (77) from 192.168.15.12

Oct 11 10:21:53 UNRAID dhcpcd[1698]: br0: truncated packet (77) from 192.168.15.12

Oct 11 12:06:53 UNRAID dhcpcd[1698]: br0: failed to renew DHCP, rebinding

Oct 11 12:06:53 UNRAID dhcpcd[1698]: br0: truncated packet (77) from 192.168.15.12

Oct 11 12:06:53 UNRAID dhcpcd[1698]: br0: truncated packet (77) from 192.168.15.12

Oct 11 12:06:53 UNRAID dhcpcd[1698]: br0: truncated packet (77) from 192.168.15.12

Edited by gberg
tidy up

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This thread may show some light:

 

 

From my observations it seems to rebind if three successive attempts at renewing the lease fail. My DHCP server hands out 24 hour leases and the first attempt at renewal occurs at the half-way point (12h). The second occurs after another half-life (6h, or 18h total). The third attempt occurs after another half-life (3h, or 21h total). It then gives up and rebinds.

 

What device on your network has the address 192.168.15.12?

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I disabled and then re-enabled bonding, and the issue seems to be gone since I did that.

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