How to fix IP addresses.


sydh

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Location
Eastleigh, Hampshire, UK
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I have 2 security cameras which send their recordings to an NAS. Every so often the cams stop recording. When I check for the reason I find the IP address of either the cam or the NAS has changed. I am using a Netgear Orbi router. Is there any way to stop this happening? Why are the IP addresses changing? All my other network devices, of which there are 12, never change. I'm sure this has something to do with dynamic DNS but that is a subject that confuses me. Any help would be appreciated.
 

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Disable DHCP and assign static IP addresses.
I would think it would solve it.
 

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    ASUSTeK COMPUTER INC. TUF Gaming FX705GM
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    2.20 gigahertz Intel i7-8750H Hyper-threaded 12 cores
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    AMD Dual Core A6-9220
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    ASUS
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    8 GB
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    AMD Radeon R5 M420
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    Realtek
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    17.3
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    1TB 5400RPM
Don't disable DHCP, but on your router, under Advanced -> Setup -> LAN Setup -> Address Reservation-section assign IPs to your devices that are preferrably outside of the DHCP range but under same SUBNET. (eg. as an example DHCP range 192.168.0.1-127/255.255.255.0, Static range 192.168.0.128-254/255.255.255.0. This could be something else but you get the drift)

Click Apply and reboot both the router and all your devices. They should all get the IP you assigned manually.

Also now you should write a network map of your devices and their IPs. It helps tremendously when troubleshooting if you know which device should have which IP. Especially if using a lot of devices in large networks.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2 build 10.0.22631.3296 (Release Channel) / Linux Mint 21.3 Cinnamon
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo A485
    CPU
    Ryzen 7 2700U Pro
    Motherboard
    Lenovo (WiFi/BT module upgraded to Intel Wireless-AC-9260)
    Memory
    32GB
    Graphics Card(s)
    iGPU Vega 10
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    Realtek
    Monitor(s) Displays
    14" FHD (built-in) + 14" Lenovo Thinkvision M14t (touch+pen) + 32" Asus PB328
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    FHD + FHD + 1440p
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    Logitech MX Master 2S
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    600/300Mbit
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    Edge (Chromium)
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    Windows Defender
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    SecureBoot: Enabled
    TPM2.0: Enabled
    AMD-V: Enabled
  • Operating System
    Windows 11 Pro 23H2 build 10.0.22631.3296(Release Preview Channel)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom
    CPU
    i7-7700k @4.8GHz
    Motherboard
    Asus PRIME Z270-A
    Memory
    32GB 2x16GB 2133MHz CL15
    Graphics card(s)
    EVGA GTX1080Ti FTW 11GB
    Sound Card
    Integrated
    Monitor(s) Displays
    32" 10-bit Asus PB328Q
    Screen Resolution
    WQHD 2560x1440
    Hard Drives
    512GB ADATA SX8000NP NVMe PCIe Gen 3 x4
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    850W
    Case
    Fractal Design Define 7
    Cooling
    Noctua NH-D15 chromax.black
    Mouse
    Logitech MX Master 2S
    Keyboard
    Logitech MX Keys
    Internet Speed
    600/300Mbit
    Browser
    Edge (Cromium)
    Antivirus
    Windows Defender
    Other Info
    AC WiFi Card
Thank you @SlicEnDicE.
Because of you I learned something new today.
My network knowledge is weak. (n)
 

My Computers

System One System Two

  • OS
    Win11 All /Debian/Arch
    Computer type
    Laptop
    Manufacturer/Model
    ASUSTeK COMPUTER INC. TUF Gaming FX705GM
    CPU
    2.20 gigahertz Intel i7-8750H Hyper-threaded 12 cores
    Motherboard
    ASUSTeK COMPUTER INC. FX705GM 1.0
    Memory
    24428 Megabytes
    Graphics Card(s)
    Intel(R) UHD Graphics 630 / NVIDIA GeForce GTX 1060
    Sound Card
    Intel(R) Display Audio / Realtek(R) Audio
    Monitor(s) Displays
    Integrated Monitor (17.3"vis)
    Screen Resolution
    FHD 1920X1080 16:9
    Hard Drives
    2 SSD SATA/NVM Express 1.3
    WDS500G2B0A-00SM50 500.1 GB
    WDCSDAPNUW-1002 256 GB
    PSU
    19V DC 6.32 A 120 W
    Cooling
    Dual Fans
    Mouse
    MS Bluetooth
    Internet Speed
    Fiber 1GB Cox -us & ADSL Bouygues -fr
    Browser
    Edge Canary- Firefox Nightly
    Antivirus
    Windows Defender
    Other Info
    VMs of Windows 11 stable/Beta/Dev/Canary
    VM of XeroLinux- Arch based & Debian 12
  • Operating System
    Windows 11 Insider Canary
    Computer type
    Laptop
    Manufacturer/Model
    ASUS X751BP
    CPU
    AMD Dual Core A6-9220
    Motherboard
    ASUS
    Memory
    8 GB
    Graphics card(s)
    AMD Radeon R5 M420
    Sound Card
    Realtek
    Monitor(s) Displays
    17.3
    Screen Resolution
    1600X900 16:9
    Hard Drives
    1TB 5400RPM
Thank you @SlicEnDicE.
Because of you I learned something new today.
My network knowledge is weak. (n)
We all learn something new each day. There was a time when I had no clue what an IP adress is. :wink:
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2 build 10.0.22631.3296 (Release Channel) / Linux Mint 21.3 Cinnamon
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo A485
    CPU
    Ryzen 7 2700U Pro
    Motherboard
    Lenovo (WiFi/BT module upgraded to Intel Wireless-AC-9260)
    Memory
    32GB
    Graphics Card(s)
    iGPU Vega 10
    Sound Card
    Realtek
    Monitor(s) Displays
    14" FHD (built-in) + 14" Lenovo Thinkvision M14t (touch+pen) + 32" Asus PB328
    Screen Resolution
    FHD + FHD + 1440p
    Hard Drives
    Intel 660p m.2 nVME PCIe3.0 x2 512GB
    PSU
    65W
    Keyboard
    Thinkpad / Logitech MX Keys
    Mouse
    Logitech MX Master 2S
    Internet Speed
    600/300Mbit
    Browser
    Edge (Chromium)
    Antivirus
    Windows Defender
    Other Info
    SecureBoot: Enabled
    TPM2.0: Enabled
    AMD-V: Enabled
  • Operating System
    Windows 11 Pro 23H2 build 10.0.22631.3296(Release Preview Channel)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom
    CPU
    i7-7700k @4.8GHz
    Motherboard
    Asus PRIME Z270-A
    Memory
    32GB 2x16GB 2133MHz CL15
    Graphics card(s)
    EVGA GTX1080Ti FTW 11GB
    Sound Card
    Integrated
    Monitor(s) Displays
    32" 10-bit Asus PB328Q
    Screen Resolution
    WQHD 2560x1440
    Hard Drives
    512GB ADATA SX8000NP NVMe PCIe Gen 3 x4
    PSU
    850W
    Case
    Fractal Design Define 7
    Cooling
    Noctua NH-D15 chromax.black
    Mouse
    Logitech MX Master 2S
    Keyboard
    Logitech MX Keys
    Internet Speed
    600/300Mbit
    Browser
    Edge (Cromium)
    Antivirus
    Windows Defender
    Other Info
    AC WiFi Card
Don't disable DHCP, but on your router, under Advanced -> Setup -> LAN Setup -> Address Reservation-section assign IPs to your devices that are preferrably outside of the DHCP range but under same SUBNET. (eg. as an example DHCP range 192.168.0.1-127/255.255.255.0, Static range 192.168.0.128-254/255.255.255.0. This could be something else but you get the drift)

Click Apply and reboot both the router and all your devices. They should all get the IP you assigned manually.

Also now you should write a network map of your devices and their IPs. It helps tremendously when troubleshooting if you know which device should have which IP. Especially if using a lot of devices in large networks.
Thanks @SlicEnDicE . I have attached a screenshot of the setup. As you can see, there was just a single range shown, not a DHCP range and static range. I added .4, .5 and .15 to the address reservation. I assume this is the same thing as you were suggesting. Or am I wrong? Also after clicking APPLY, it took around 1 minute to save the changes before the screen you see reappeared so I assume from that a reboot is not required.
 

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My Computer

System One

  • OS
    W11
    Computer type
    PC/Desktop
    Manufacturer/Model
    PC Specialist
    CPU
    3.80 gigahertz AMD Ryzen 9 3900XT 12-Core
    Motherboard
    ASUSTeK COMPUTER INC. TUF GAMING X570-PLUS Rev X.0x
    Memory
    32684 Megabytes
    Graphics Card(s)
    NVIDIA GeForce RTX 3060 Ti
    Monitor(s) Displays
    ViewSonic VX3276-QHD (x2)
    Hard Drives
    1TB PCS PCIe M.2 SSD
    ST8000DM004-2CX188 (8001.56 GB)
    WDC WD30EZRX-00DC0B0 (3000.59 GB)
    WDC WD30EZRX-00SPEB0 (3000.59 GB)
    Cooling
    Water cooled
    Keyboard
    Logitech
    Mouse
    Logitech
    Internet Speed
    56
Thanks @SlicEnDicE . I have attached a screenshot of the setup. As you can see, there was just a single range shown, not a DHCP range and static range. I added .4, .5 and .15 to the address reservation. I assume this is the same thing as you were suggesting. Or am I wrong? Also after clicking APPLY, it took around 1 minute to save the changes before the screen you see reappeared so I assume from that a reboot is not required.
Yes, this will work. The devices will get the reserved addresses and DHCP will assign all the rest of the adresses in range .1 - .254 to new devices.

If everything works now, you're all good. If you get communication errors, do the reboot cycle for all devices to fix it.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2 build 10.0.22631.3296 (Release Channel) / Linux Mint 21.3 Cinnamon
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo A485
    CPU
    Ryzen 7 2700U Pro
    Motherboard
    Lenovo (WiFi/BT module upgraded to Intel Wireless-AC-9260)
    Memory
    32GB
    Graphics Card(s)
    iGPU Vega 10
    Sound Card
    Realtek
    Monitor(s) Displays
    14" FHD (built-in) + 14" Lenovo Thinkvision M14t (touch+pen) + 32" Asus PB328
    Screen Resolution
    FHD + FHD + 1440p
    Hard Drives
    Intel 660p m.2 nVME PCIe3.0 x2 512GB
    PSU
    65W
    Keyboard
    Thinkpad / Logitech MX Keys
    Mouse
    Logitech MX Master 2S
    Internet Speed
    600/300Mbit
    Browser
    Edge (Chromium)
    Antivirus
    Windows Defender
    Other Info
    SecureBoot: Enabled
    TPM2.0: Enabled
    AMD-V: Enabled
  • Operating System
    Windows 11 Pro 23H2 build 10.0.22631.3296(Release Preview Channel)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom
    CPU
    i7-7700k @4.8GHz
    Motherboard
    Asus PRIME Z270-A
    Memory
    32GB 2x16GB 2133MHz CL15
    Graphics card(s)
    EVGA GTX1080Ti FTW 11GB
    Sound Card
    Integrated
    Monitor(s) Displays
    32" 10-bit Asus PB328Q
    Screen Resolution
    WQHD 2560x1440
    Hard Drives
    512GB ADATA SX8000NP NVMe PCIe Gen 3 x4
    PSU
    850W
    Case
    Fractal Design Define 7
    Cooling
    Noctua NH-D15 chromax.black
    Mouse
    Logitech MX Master 2S
    Keyboard
    Logitech MX Keys
    Internet Speed
    600/300Mbit
    Browser
    Edge (Cromium)
    Antivirus
    Windows Defender
    Other Info
    AC WiFi Card

My Computer

System One

  • OS
    W11
    Computer type
    PC/Desktop
    Manufacturer/Model
    PC Specialist
    CPU
    3.80 gigahertz AMD Ryzen 9 3900XT 12-Core
    Motherboard
    ASUSTeK COMPUTER INC. TUF GAMING X570-PLUS Rev X.0x
    Memory
    32684 Megabytes
    Graphics Card(s)
    NVIDIA GeForce RTX 3060 Ti
    Monitor(s) Displays
    ViewSonic VX3276-QHD (x2)
    Hard Drives
    1TB PCS PCIe M.2 SSD
    ST8000DM004-2CX188 (8001.56 GB)
    WDC WD30EZRX-00DC0B0 (3000.59 GB)
    WDC WD30EZRX-00SPEB0 (3000.59 GB)
    Cooling
    Water cooled
    Keyboard
    Logitech
    Mouse
    Logitech
    Internet Speed
    56

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