Static IP Inside The DHCP Pool. What Could Go Wrong??? (Everything)

Solveddhcpip-conflictlan78 replies · 1.6K views · started
  1. mods can we pin this thread

    6 0 helpful
  2. wait does this also apply to phone?. exact same thing happened to my desktop last month

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  3. oof exact same thing happened to my second monitor setup last month fingers crossed 🤞

    thumbsup

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  4. ok so spent my entire lunch break on phone and im still not done

    rage

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  5. ok so try turning off the settings first, fixed it for me lmao lol this thread is gold

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  6. hmmm on a Windows DHCP srever, enable conflict detection (right-click IPv4 > Properties > Advanced tab, Conflict detection attempts set to 1 or 2, its a server-wide setting not a scope one). The server pings an address before leasing it. It slows leasing slightly but prevents duplicates from static devices. worked for me anyway 🤷

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  7. ok this thread just saved my weekend. exact same thing happened to my mac last month

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  8. prevent rogue servers with DHCP snooping on managed switches: mark the uplink to your real DHCP server as trusted, all other ports untrusted.

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  9. guys pls help ok this thread just saved my weekend. came here to say exactly this

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  10. @mila.dalton thank u this worked!! thank u thank u thank u

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  11. @avao275 did u ever fix it?... have u checked your ip-conflict settings? mine were reset after an update

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  12. btw page 2 lets gooo. try turning off the cache first, fixed it for me

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  13. Accepted solution

    been there man find who owns teh IP. From a machine on teh same subnet: arp -a (Windows) or ip neigh (Linux) shows teh MAC for the addrses after u ping it. Look up the MAC vendor prefix and check the switchs MAC address table to find the port.

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  14. ok update: did what @devs776 said and its fine now. spent since tuesday on 172.16.10.0/24 and im still not done

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  15. so annoyed rn i swear ip-conflict is cursed

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  16. @subnetotter-16i nah thats not it, dhcp has nothing to do with it... same issue here on my work pc... driving me crazy just my 2 cents

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