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Forum Discussion
tubphooj
Jun 04, 2020Tutor
Orbi Satelite keeps renewing IP of ethernet connected devices
i have a RBR50 and RBS50. as of late, my satelite keeps re-assiging IPs - over and over again, at least thats what it looks like on the logs. as a result, the two devices that are connected thro...
CrimpOn
Jun 08, 2020Guru - Experienced User
tubphooj wrote:static verse reserved. A reserved IP should sit inside the pool correct?
That is not the way I do it. I set up all of my devices which need to have "assigned" IP addresses in one part of the range and use the "pool" for "things that come and go". DHCP simply looks at the MAC address of the device asking for an IP and looks through the LAN setup table until it finds a MAC that matches. Were I to do any "static" IP addresses, I would record that in the LAN setup table (in the "non-pool" part so that in my haste to add another device in the future the entry would remind me, "That IP is already in use." The device will never do a DHCP request to ask for it, so it is not essential to be in the LAN setup, but my "keeping records on paper ability" is horrible.
MishoA
Jun 08, 2020Tutor
Same issue with me. Did factory reset on my router and sat. Started from scratch same issue. Constant DHCP reassignment
- tubphoojJun 11, 2020Tutor
i was just going through orbi forum and lots of people having the same type of issue. has NetGear looked into this?
- MishoAJun 11, 2020Tutor
This is what fixed it for me:
I downgraded my router to V2.3.5.30 and left my satellite at V2.5.1.16 and that fixed the problem, and it has been stable for the past 72 hours, no interruptions whatsoever. By the way, I did try 2.5.1.8 and it didn't do anything (same problem), so that's why I went all the way back to 2.3.5.30. Hope that helps - CrimpOnJun 16, 2020Guru - Experienced User
I would love to investigate this issue, but alas my Orbi DHCP works "as it should". Devices that are constantly powered on renew DHCP exactly when they should. My issue is that DHCP servers (i.e. the Orbi) do not just send out DHCP notices. They respond to queries (or at least they are supposed to.) What I am interested in is the question, "What could cause devices to keep asking for IP addresses when they should have no reason to?"
Would someone whose Orbi logs exhibit this behavior be willing to capture DHCP activity and post it somewhere? This is how:
- Navigate to the Orbi debug page (http://orbilogin.net/debug.htm
- Log in with the admin credentials ("admin" and password)
(What I usually do is connect to the Orbi web interface and change "index" on the navigation bar to "debug".) - Check the box "Enable LAN/WAN Packet Capture".
- Check the box "Start Capture"
- Wait until you see some more of those DHCP notices appear in the log. If this is happening every two minutes, it should not take long.
- After some captures have occured, navigate back to the debug page and click the box, "Save Debug Log".(This takes a bit. Computers are not "computer quick")
- A box should appear offering a choice to Open or Save the file debug-log.zip.
Save it to someplace on your computer where you can find it. - Open the zip file and open the file "lap.pcap" with a program that can open "pcap" files.
Personally, I use the free Wireshark program which is available for Windows, Mac, and most Linux distrubutions. - When the file opens, set a "Display Filter" (at the top which reads "dhcp or dhcpv6"
This will highlight all of the LAN packets involved with the DHCP protocol. - On the File menu, select "Export Specified Packets", then check the boxes Displayed and Selected.
- Save the file.
Note that this file contains no "personal" information except for the MAC addresses of these devices, which already appears in the Orbi log file. There will be no web traffic, no emails, no logins, .... just DHCP.
I understand that this digging into packet captures is sort of "odd".
- tubphoojJun 16, 2020Tutor
thanks for checking in. yeah, i tried your suggestion, still dropping. took both router and satelite to 2.3.5.30 and still issues. thinking about going lower, but worried about some of the security updates in the patches. thoughts?
dropped 4x today in a 6 hr time frame. each time, same DHCP entries in the log.
- tubphoojJun 16, 2020Tutor
i can do that. will share what i get after review.
CrimpOn wrote:I would love to investigate this issue, but alas my Orbi DHCP works "as it should". Devices that are constantly powered on renew DHCP exactly when they should. My issue is that DHCP servers (i.e. the Orbi) do not just send out DHCP notices. They respond to queries (or at least they are supposed to.) What I am interested in is the question, "What could cause devices to keep asking for IP addresses when they should have no reason to?"
Would someone whose Orbi logs exhibit this behavior be willing to capture DHCP activity and post it somewhere? This is how:
- Navigate to the Orbi debug page (http://orbilogin.net/debug.htm
- Log in with the admin credentials ("admin" and password)
(What I usually do is connect to the Orbi web interface and change "index" on the navigation bar to "debug".) - Check the box "Enable LAN/WAN Packet Capture".
- Check the box "Start Capture"
- Wait until you see some more of those DHCP notices appear in the log. If this is happening every two minutes, it should not take long.
- After some captures have occured, navigate back to the debug page and click the box, "Save Debug Log".(This takes a bit. Computers are not "computer quick")
- A box should appear offering a choice to Open or Save the file debug-log.zip.
Save it to someplace on your computer where you can find it. - Open the zip file and open the file "lap.pcap" with a program that can open "pcap" files.
Personally, I use the free Wireshark program which is available for Windows, Mac, and most Linux distrubutions. - When the file opens, set a "Display Filter" (at the top which reads "dhcp or dhcpv6"
This will highlight all of the LAN packets involved with the DHCP protocol. - On the File menu, select "Export Specified Packets", then check the boxes Displayed and Selected.
- Save the file.
Note that this file contains no "personal" information except for the MAC addresses of these devices, which already appears in the Orbi log file. There will be no web traffic, no emails, no logins, .... just DHCP.
I understand that this digging into packet captures is sort of "odd".
- tubphoojJun 18, 2020Tutor
i have the debug logs. there are a ton of stuff here. any instructions or documentation i can use to decipher this mess?
it has alot of protected data, e.g. encryption codes, mac, ips, ssids, etc... dont think i can share it w the community. its just outside warranty, can i open a ticket w support still?
CrimpOn wrote:I would love to investigate this issue, but alas my Orbi DHCP works "as it should". Devices that are constantly powered on renew DHCP exactly when they should. My issue is that DHCP servers (i.e. the Orbi) do not just send out DHCP notices. They respond to queries (or at least they are supposed to.) What I am interested in is the question, "What could cause devices to keep asking for IP addresses when they should have no reason to?"
Would someone whose Orbi logs exhibit this behavior be willing to capture DHCP activity and post it somewhere? This is how:
- Navigate to the Orbi debug page (http://orbilogin.net/debug.htm
- Log in with the admin credentials ("admin" and password)
(What I usually do is connect to the Orbi web interface and change "index" on the navigation bar to "debug".) - Check the box "Enable LAN/WAN Packet Capture".
- Check the box "Start Capture"
- Wait until you see some more of those DHCP notices appear in the log. If this is happening every two minutes, it should not take long.
- After some captures have occured, navigate back to the debug page and click the box, "Save Debug Log".(This takes a bit. Computers are not "computer quick")
- A box should appear offering a choice to Open or Save the file debug-log.zip.
Save it to someplace on your computer where you can find it. - Open the zip file and open the file "lap.pcap" with a program that can open "pcap" files.
Personally, I use the free Wireshark program which is available for Windows, Mac, and most Linux distrubutions. - When the file opens, set a "Display Filter" (at the top which reads "dhcp or dhcpv6"
This will highlight all of the LAN packets involved with the DHCP protocol. - On the File menu, select "Export Specified Packets", then check the boxes Displayed and Selected.
- Save the file.
Note that this file contains no "personal" information except for the MAC addresses of these devices, which already appears in the Orbi log file. There will be no web traffic, no emails, no logins, .... just DHCP.
I understand that this digging into packet captures is sort of "odd".
- CrimpOnJun 18, 2020Guru - Experienced User
tubphooj wrote:i have the debug logs. there are a ton of stuff here. any instructions or documentation i can use to decipher this mess?
it has alot of protected data, e.g. encryption codes, mac, ips, ssids, etc... dont think i can share it w the community. its just outside warranty, can i open a ticket w support still?
Correct, the entire debug log contains lots of sensitive information. Netgear provides "complimentary 90 day support" for new systems, so if the system is less than 90 days old, you can contact Netgear support. After 90 days, customers can purchase support or (as I do) turn to other customers in the community forum for information.
What I want is a tiny portion of the debug log. A tiny part of the file "lan.pcap" that is one of the many files included in the debug zip file. Only the "dhcp" and "dhcpv6" packets. The process I would use to extract these packets is to open the lan.pcap file with Wireshark, create a "Display Filter" to show only these packets, then create an extract file with only those selected packets. To verify that this is the only information being shared, open that new file with Wireshark and it will contain only those packets.
I believe there are restrictions on which file types can be attached to a message, so the process to share "other things" is to put the file on DropBox, Google Drive (or something similar), create a "link" to the file, and then share the URL.
- tubphoojJun 22, 2020Tutor
way above my head now i guess. theres screenshot of the logs i see. no "lan.pcap" file i can see. I downloaded wireshark but no idea what im looking at. is there a youtube tutorial you can share?
CrimpOn wrote:
tubphooj wrote:i have the debug logs. there are a ton of stuff here. any instructions or documentation i can use to decipher this mess?
it has alot of protected data, e.g. encryption codes, mac, ips, ssids, etc... dont think i can share it w the community. its just outside warranty, can i open a ticket w support still?
Correct, the entire debug log contains lots of sensitive information. Netgear provides "complimentary 90 day support" for new systems, so if the system is less than 90 days old, you can contact Netgear support. After 90 days, customers can purchase support or (as I do) turn to other customers in the community forum for information.
What I want is a tiny portion of the debug log. A tiny part of the file "lan.pcap" that is one of the many files included in the debug zip file. Only the "dhcp" and "dhcpv6" packets. The process I would use to extract these packets is to open the lan.pcap file with Wireshark, create a "Display Filter" to show only these packets, then create an extract file with only those selected packets. To verify that this is the only information being shared, open that new file with Wireshark and it will contain only those packets.
I believe there are restrictions on which file types can be attached to a message, so the process to share "other things" is to put the file on DropBox, Google Drive (or something similar), create a "link" to the file, and then share the URL.
- CrimpOnJun 22, 2020Guru - Experienced User
tubphooj wrote:way above my head now i guess. theres screenshot of the logs i see. no "lan.pcap" file i can see. I downloaded wireshark but no idea what im looking at. is there a youtube tutorial you can share?
When I "Save" the debug file, I get a file called "debug-log.zip" in my Download folder (Windows). If I double click on the zip file, it shows LOTS of files. The one of interest is called "lan.pcap" (see attached image). Unfortunately, when people post "inline" images on this forum, the images do not show up until one of the moderators approves them. We can "Browse" and attach files of certain types (attached).
If Wireshark is installed, extract the lan.pcap file and double click on it, which should cause Wireshark to open it.
www.wireshark.org has some tutorials on how to run Wireshark.
- tomschmidtJun 22, 2020Virtuoso
CrimpOn, I have two IP cameras that are logging their DHCP request every 10 minutes. I installed Wireshark and captured their DHCP request. Picture is attached with MAC address information blocked out. Odd thing is it shows that the DHCP lease is for 86400 seconds (1 day) as it should be, but I am instead getting 600 seconds (10 minutes).
- CrimpOnJun 22, 2020Guru - Experienced User
It looks to me like you are on the right track to solving this. Probably would be helpful to open the details on the actual request packet (the broadcast from 0.0.0.0 to 255.255.255.255). In that packet the camera should be saying, "Can I please have this IP address?".
I do not understand that immediately after receiving the DHCP ACK (sure, you can have this IP), the camera tries to ping the router (ICMP) and gets a destination unreachable. Probably prudent to verify that the Orbi is responding to ICMP requests.
It seems pretty clear to me that the camera is initiating this transaction every 10 minutes by broadcasting the DHCP request and the Orbi is responding the way it is supposed to.
- UKAlanWebbJun 23, 2020Initiate
All, just to throw my hat in to the mix.
Ground Floor
ISP - Virgin Media
ISP Router in Modem mode
Orbi RBR50 - Firmware v2.5.1.16
1st Floor
x2 Orbi Sattelites across two rooms.
1st Floor has devices wired to the Sattelites.
One device a Windows 10 PC, disconnect from the internet, even with the Ethernet and Wi-Fi network cards active.
Looking at the logs, I can see that upon disconnections, I have a DCHP renewal request logged for the active network card in the PC.
I have tried the following.
1. Firmware reset
2. Reserved IP addresses, from the DHCP pool.
Overall when the issue occurs I get a barrage of disruption until I reboot the Orbi router. Then after this I can go a few days and even a week without noticing the distruption.
The issue is made even worst now as I am working from home and Teams calls are being distrupted.
Is this issue on the Netgear radar as a bug to be fixed. I moved away from the Google Mesh Wi-Fi due to untold problems, including poor support. Hoping to see a different experience from Netgear.
If not then will return the setup to Amazon and move on to the next brand!
Thanks
- CrimpOnJun 23, 2020Guru - Experienced User
UKAlanWebb wrote:Is this issue on the Netgear radar as a bug to be fixed. I moved away from the Google Mesh Wi-Fi due to untold problems, including poor support. Hoping to see a different experience from Netgear.
None of us on this "community forum" have information about what Netgear engineers are working on. Occasionally, I will see a post from someone indicating that a problem has been "escalated" and comments about those issues persisting for a long time. "Frequent disconnections" or "WiFi drops" appear to be a common issue.
If not then will return the setup to Amazon and move on to the next brand!
I have yet to find a common thread among these reports, and I cannot reproduce the problem, perhaps because I have "tinkered with" my environment. For example, I have IPv6 disabled on my desktop and the WiFi card disabled. One of my laptops has "everything on" and sometimes I have to reboot it when switching network connections.
Manually loading firmware 2.4.5.30 on the router seems to work for some people.
I would think that setting the Windows desktop to IPv4 only (no IPv6) with a static IP address and disabling the WiFi card would be pretty easy to try. Would be interesting to see if the Windows machine "loses internet" when set up that way.
I am pretty insistent that that the Orbi responding to DHCP renewals may be a symptom, but is not the cause. Orbi said, "here's an IP address you can use for 86,400 seconds" and then minutes later the device thinks, "woops. I've lost the network. I need to ask for a renewal on my DHCP lease." That's the problem.