Manually Assigned IP List Gone After Reboot

[giant25]

I have an RT-AC86u running latest stock 3.0.0.4.384_32797. Every time the router is rebooted, the "Manually Assigned IP around the DHCP list" (LAN-->DHCP Server tab) gets blown away. This was also the case in the previous firmware. Is anyone else having this issue? Thanks.

 

[OzarkEdge]

I have an RT-AC86u running latest stock 3.0.0.4.384_32797. Every time the router is rebooted, the "Manually Assigned IP around the DHCP list" (LAN-->DHCP Server tab) gets blown away. This was also the case in the previous firmware. Is anyone else having this issue? Thanks.

I assume you have set aside a pool of IPs from DHCP for manual assignment.

I did not have this issue with previous firmware, and I have stopped assignments until ASUS fixes some things. I'm holding on 21140.

OE

 

[giant25]

I assume you have set aside a pool of IPs from DHCP for manual assignment.

I did not have this issue with previous firmware, and I have stopped assignments until ASUS fixes some things. I'm holding on 21140.

OE

Yes, I have a bunch of devices within my network that I've entered into this list. I've been doing this they same way since my old RT-N66u. It seems like a recent issue, but I did notice it on 21140 as well.

 

[OzarkEdge]

Yes, I have a bunch of devices within my network that I've entered into this list. I've been doing this they same way since my old RT-N66u. It seems like a recent issue, but I did notice it on 21140 as well.

So, my DHCP starts at 192.168.1.100... I assigned IP .11 and rebooted from the GUI. The assignment remains.

Are you resetting after you upgrade the firmware?

OE

 

[giant25]

So, my DHCP starts at 192.168.1.100... I assigned IP .11 and rebooted from the GUI. The assignment remains.

Are you resetting after you upgrade the firmware?

OE

Thanks for checking. My DHCP goes from .2 to .150. I manually assigned .200, Applied, then rebooted. It's gone. I'll try a full factory reset next since it's not reproducible for you.

 

[Ronald Schwerer]

Thanks for checking. My DHCP goes from .2 to .150. I manually assigned .200, Applied, then rebooted. It's gone. I'll try a full factory reset next since it's not reproducible for you.

Be sure to click "Apply" at the bottom after adding one or more manual IPs ("+"). Do not reboot or go to any other screen until you Apply.
I sometimes forget and go to the Client List and then headslap after it gets lost. Just to be safe, now I hit Apply after every "+". Inconvenient, but it beats having to re-do it later.

 

[giant25]

Be sure to click "Apply" at the bottom after adding one or more manual IPs ("+"). Do not reboot or go to any other screen until you Apply.
I sometimes forget and go to the Client List and then headslap after it gets lost. Just to be safe, now I hit Apply after every "+". Inconvenient, but it beats having to re-do it later.

Yes, thanks for mentioning that. I do hit apply. Not only that, I've logged out and back in, listings are still there. It's only after the reboot that they disappear.

 

[Ronald Schwerer]

Yes, thanks for mentioning that. I do hit apply. Not only that, I've logged out and back in, listings are still there. It's only after the reboot that they disappear.

OK, just a guess. I'd do a config save after spending time editing. I wonder if NVRAM is getting full. So one test would be to save the settings, then do a factory reset try adding some manual DHCP assignments. If it works, you've got your answer. Otherwise reload your last backup and you're back to you were.

 

[OzarkEdge]

Thanks for checking. My DHCP goes from .2 to .150. I manually assigned .200, Applied, then rebooted. It's gone. I'll try a full factory reset next since it's not reproducible for you.

Could move DHCP IP pool up to say .100-.254, and assign manually from .2-.99 and see what happens.

Initialize will clear everything.

OE

 

[giant25]

Just an update. Changing DHCP IP pools around like Ozark suggested didn't resolve the issue. Updated to 32799 firmware, no change. Full factory reset and the problem has gone away. I rebuilt my config by hand and did not restore any settings. My manual IP assignments now survive a reboot as they should. Thanks everyone for your help.

 

[OzarkEdge]

Just an update. Changing DHCP IP pools around like Ozark suggested didn't resolve the issue. Updated to 32799 firmware, no change. Full factory reset and the problem has gone away. I rebuilt my config by hand and did not restore any settings. My manual IP assignments now survive a reboot as they should. Thanks everyone for your help.

In my defense, resetting after firmware upgrade was my first suggestion.

OE

 

[giant25]

In my defense, resetting after firmware upgrade was my first suggestion.

OE

You're absolutely right, I didn't mean to make it sound like I was calling you out! You gave a few good suggestions, and I'm up and running. Thanks.

 

[giant25]

Well, dang. My Manually Assigned IP around the DHCP List got wiped out after a reboot again. I'm on the latest 32799 firmware and have already performed a factory reset. Anyone else seen this yet? Do I need to do more than a factory reset from the GUI?

 

[RMerlin]

Check how much nvram you have free. Over SSH:

nvram show

Most likely cause is you are running out of space.

 

[giant25]

Check how much nvram you have free. Over SSH:

nvram show

Most likely cause is you are running out of space.

When running nvram show, I see size 54317 bytes (76755 left). Thoughts?

 

[RMerlin]

When running nvram show, I see size 54317 bytes (76755 left). Thoughts?

That's plenty enough, so your issue must be elsewhere.

 

[giant25]

That's plenty enough, so your issue must be elsewhere.

I exported nvram to a txt file and did a grep for the MAC addresses that are manually assigned. I found "dhcp_staticlist=..." with 4 entries. I only have 2 of these entries in the Manually assigned table. The other 2 are older assignments. Also, after reboot, the table in the GUI is gone, but these 4 entries remain in nvram. Any idea on what else I can dig into, parameters I can check/reset, or otherwise?

 

[RMerlin]

I exported nvram to a txt file and did a grep for the MAC addresses that are manually assigned. I found "dhcp_staticlist=..." with 4 entries. I only have 2 of these entries in the Manually assigned table. The other 2 are older assignments. Also, after reboot, the table in the GUI is gone, but these 4 entries remain in nvram. Any idea on what else I can dig into, parameters I can check/reset, or otherwise?

Try clearing it, in case it's corrupted:

nvram set dhcp_staticlist=""
nvram commit

Also disable any browser add-ons, as some of these will interfere with the page's DOM, preventing settings from properly being handled.

 

[giant25]

Try clearing it, in case it's corrupted:

nvram set dhcp_staticlist=""
nvram commit

Also disable any browser add-ons, as some of these will interfere with the page's DOM, preventing settings from properly being handled.

Thanks for your help so far. After I run the nvram set and commit, it appears that those 4 entries are still set in the dhcp_staticlist parameter. Also, if I assign a new (never before assigned) MAC/IP bind, that MAC never makes it into this parameter. Any other thoughts short of a full clear?

 

[ColinTaylor]

Try it again from a different PC/browser.