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No longer can add/edit static IP address
The DHCP option on my router is enabled. I also maintain a list with ~50 static IP addresses. The other day I updated the firmware from v2 to the latest of v3 V1.0.4.84_10.0.58 through the built-in "...
Problem has been resolved by resetting the router. https://www.router-reset.com/info/Netgear/R6700
I figured out the model of my hardware. There is a label at the bottom which indicates it is R6700v3. I tried with older firmware for v3 with no luck. Finally, I decided to reset it and that worked. Now I can add and modify static IP addresses in the address reservation table under Advanced -> Setup -> LAN Setup.
Thank you everyone for providing help.
> [...] I have all the IP addresses statically assigned on the actual
> devices. [...]
> [...] I know there is a limit of 64 static IP addresses, [...]
How, exactly, do you "know" that? I'd expect the router to have a
limit on reserved (dynamic) addresses (the list of which it maintains).
Why it would care about static addresses (configured elsewhere) is a
mystery to me.
> [...] I also maintain a list with ~50 static IP addresses. [...]
Where/how, exactly, do you "maintain" this list?
> The DHCP option on my router is enabled. [...]
What is the address range of your DHCP pool? Are your ~50 static IP
addresses" in that pool? (Which would not be a good idea.)
> I can't tell if my hardware device is v2 or v3. [...]
Look for "Model" on the product label? As a clue, downloading
firmware kits for the various hardware varients shows which file type is
used for which model (hardware variant):
R6700-V1.0.2.8_10.0.53.chk
R6700v2-V1.2.0.62_1.0.1.img
R6700v3-V1.0.4.84_10.0.58.chk
> [...] I bought it in 2019 and back then it was showing v1. [...]
"showing" what, exactly, where, exactly? Clearly, the currently
loaded firmware is for an R6700v3.
> [...] I believe negear have all their checks in place [...]
I wouldn't trust Netgear's firmware distribution scheme for much, but
I haven't seen any reports here about a router automatically updating
anything with firmware for the wrong device.
If you have managed to load some inappropriate firmware image onto
the thing, then that might explain many problems.
Problem has been resolved by resetting the router. https://www.router-reset.com/info/Netgear/R6700
I figured out the model of my hardware. There is a label at the bottom which indicates it is R6700v3. I tried with older firmware for v3 with no luck. Finally, I decided to reset it and that worked. Now I can add and modify static IP addresses in the address reservation table under Advanced -> Setup -> LAN Setup.
Thank you everyone for providing help.