NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
Solved
Local IP connectivity to router apparently dead while WiFi still working
Hello, This morning our routing stopped working. WiFi still functions. I am not a networking amateur and have custom DHCP range and numerous fixed allocations set and so do not want to just reset the...
- Good sanity testing fundamentals, thank you, although I have fixed this. I believe that I have revealed what can be used to diagnose the exact problem in this upgrade.
Repeated resets, repeated FW upgrades to the latest all achieved nothing. But, I immediately restored settings everytime, as per sensible guidance here. It should not have been a problem, but it was. This 'restored' the problem that the firmware introduced. This begins to make the problem isolatable by Netgear.
So, I manually created my complex DHCP fixed structure and my SSID details. And it works now. Between devices and Orbi units. I should not have to do this.
This means that something in the configuration structure does not port well between these firmware versions. I presume it has something to do with routing/iptables that this new App Armor thing has poorly implemented, regardless of whether it is enabled(!) (I do and did not have it enabled).
None of this is good news. I have two ruined days. And I would be irrational to trust my Netgear equipment. The scenario if I were travelling would be worse. If you have a NAS, an inward VPN, CCTV, alarms, Ring doorbells, Arlo or are just a modern user, you cannot trust a system or manufacturer that will destroy your network whenever it wants.
I am furious.
SW_ wrote:
Testyblahblah wrote:
Thanks for input, but:
>> Just discovered laptop on 5ghz works with full IP access to router...
>>> It implies that the Router routing function is working for normal 5G wireless band since the labtop can ping its interface.
Nope, sadly. As above. 5ghz tablet same issues as 2.4Ghz devices and 5ghz IoT devices also killed. This another reason why it is clearly a routing issue, rather than wifi.
>> 'Config Sync' problem for satellite status now on Attached devices page...
>> 5ghz tablet connects to WiFi, but with identical router IP issues to the 2.4ghz phones.
>>>This implies that the wireless backhaul is not working, because the Orbi router wouldn't be giving out duplicate IP to two different devices. One reason that this could happen is that one of these devices has not been able to renew its IP address. Therefore, it continues to use its old IP address until its lease expires or at least until it can talk the router via the Satellite's backhaul to get a new IP address.
There are no duplicate IP addreses. The issue is apparently routing. All leases were force renewed. As above, this was verified by ARP scans and on devices, correlating to entries on router web interface.
>>> Try turning off the Satellite to force the problematic device to connect the router and see if it gets a new IP address or not. That will give you an idea if the router is behaving properly. If the device gets a new IP address and can ping the router interface, then the problem is the wireless backhaul.
As above, the wifi backhaul is working enough for the pattern routing failure/success across the backhaul. The config sync story seems to symtomatic of something referred to in other forums, perhaps a symptom of the overall mess also affecting IP over the wifi backhaul between satellite and router. This also correlates to the router not being able to determine the current firmware version on the satellite (which is also on the latest firmware)
>> Two Huawei phones on 2.4ghz and one Samsung tablet on 5ghz have dead IP connectivity...
>>> Are these connected to the Satellite or the Router?
As above, whether on either.
Just for further clarity, I am now leaving the satellite switched off. Only router is on.
Same story. Problem devices can ping within the LAN, but not ping the router. For example, the working IP connection on the laptop can ping the phone and the phone can ping the laptop. But, the phone cannot ping or http into the router. And the router terminal cannot ping the phone. But laptop has full connectivity to the router.
And I just forced yet another manual firmware update to the latest just in case that auto had not installed properly. Desperate hope...
If the manual file FW update and factory reset has not resolved this, please make contact with the forum Moderator.
Testyblahblah wrote:
Just for further clarity, I am now leaving the satellite switched off. Only router is on.
Same story. Problem devices can ping within the LAN, but not ping the router. For example, the working IP connection on the laptop can ping the phone and the phone can ping the laptop. But, the phone cannot ping or http into the router. And the router terminal cannot ping the phone. But laptop has full connectivity to the router.
And I just forced yet another manual firmware update to the latest just in case that auto had not installed properly. Desperate hope...
- After your kind counsel, I did indeed do that straight away yesterday. No reply. I imagine NG are in bunker mode....
Have you had your devices forget the network, then try to re-add them?
- Very sensible idea, thank you, but I had done this at the start just in case, but didn't help.
The above tests are not meant to resolve the problem. The intend of the above tests is to find the source of the problem. If you've already tried those tests, can you let us know which of tests fail or succeed?
Can you upload the outputs and results if possible?
