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  1. #1
    Shallow and Pedantic
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    Valid IP address

    About 1-2x a day, my computer's internet just goes into a "safe mode". It has an exclamation point where the 6 bars of strength are ( if you use W7), and it says connected, but I have no internet. I hit diagnose and repair, resets my router and it works again. The problem it gives is invalid IP address? Anyone know what to do? It is rather annoying.

  2. #2
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    using fixed IP ? check your router DHCP settings otherwise, most routers have a 24hr lease.

  3. #3
    alsohawks

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    So is this like a wireless router that multiple people are on at any random time?

    Assuming a wireless router, is your IP assigned statically through DHCP? It sort of sounds like something to do with the pool of leased DHCP IPs, maybe after resetting your router previously leased IPs are available again . Is this scenarious at all possible? multiple devices on the network, not always a set amount or the same devices, etc

    In short, if it isn't already and you think you can, try to access your router and assign a static IP for your computer/NIC's MAC address and see if that clears things up. I'm really just spitballing here as I don't know what the hell Windows would mean by "invalid IP" while not bumping you from the network altogether and not just the internet.

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    Calling, that he uses someone else wireless, and that the DHCP pool might be full

  5. #5
    Shallow and Pedantic
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    Nope, I use my own. I'll set up my own IP and see how it works.

  6. #6
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    idk how valid it is as good advice, but following a tweaking guide for torrenting, I set my renew time to the max 9999hrs or something

  7. #7
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    Why use DHCP if you are always a user on that network? A static IP would make it easier to keep your ports opened for connections that need it, and you always know what your computers addresses are for testing with ping and tracert. Just make sure you aren't giving yourself an address that is in the DHCP pool.

  8. #8
    alsohawks

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    Quote Originally Posted by bungiefan View Post
    Why use DHCP if you are always a user on that network? A static IP would make it easier to keep your ports opened for connections that need it, and you always know what your computers addresses are for testing with ping and tracert. Just make sure you aren't giving yourself an address that is in the DHCP pool.
    Static IPs and Static IPs leased from DHCP aren't the same thing, as the latter is just something you'd setup within the router to always lease the same network IP (192.168.1.100, .101, .102) to the same MAC address, whereas a literal static IP is something you'd get from the ISP to ensure your external IP is always the same.

    In general it's really helpful to setup static IPs through DHCP for both security and convenience if you ever need to use port-forwarding.

  9. #9
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    http://img29.imageshack.us/img29/5818/47379821.png

    Haven't done anything yet, but thats the message.

  10. #10
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    You can turn DHCP off in your router completely, that still doesn't disable NAT which gives you a private address. A static IP is still a static IP, whether or not it's private or global. DHCP is dynamic, not static. If you manually config your IP address, you're not using DHCP, but you don't want to pick an address that DHCP can possibly give out, because it's only tracking the ones it gives out, not the ones people pick as static ones, and as such it can give out the address you chose as static.

    I've got a private static address on my computer. That wasn't set up on my router, that was set up in my network configuration on the computer itself. My printer has a static address too so I always know what it is, not what DHCP decided to lease to it that week. Most ISPs will only give you one global address per modem, so you have to use a router with DNAS to split it to a bunch of private ones. However, nobody needs to access your printer from the internet, so it doesn't matter if you give it a private static address. Likely the same with your home media server.

    You configure port forwarding through your router, but that's not using DHCP at all. DHCP is purely to auto-configure a device with an IP address, subnet mask, default gateway address, and DNS server addresses. If you manually set those, you are not using DHCP. You aren't leasing an IP if you staticly set it, you have that address for as long as you want. If you pick a static address, you don't have to reconfigure your port forwards, while with DHCP, you might have to change those after a reconnect, as your IP can change. DHCP (DYNAMIC Host Configuration Protocol). Dynamic is in the name, and it gives dynamic addresses.

  11. #11
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    Home routers are shitty DHCP hosts. I leave the shit on for people who come over but every single one of my networked devices are set up with static IPs. It makes potential connectivity problems much easier to troubleshoot when I know exactly what address(es) to expect to certain devices.

  12. #12
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    What router do you have? (I didn't see it posted)

  13. #13
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    Netgear N wireless something. @ work, can check when I get home fort exact number. W11 something?

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