Network Health Check & Documentation
IP address conflict and DHCP fault finding, on site
Computers keep showing IP address conflicts or losing the network.
Computers keep showing IP address conflicts or losing the network.
IP address conflicts and random disconnections are often caused by two devices handing out addresses, such as an ISP router and a firewall, or a forgotten wireless router plugged into the office network. Static addresses set inside the DHCP range cause conflicts too, especially with printers and cameras. It can also come from a misconfigured mesh Wi-Fi system acting as a router.
What the technician does
- Find which devices are giving out addresses
- Remove duplicate DHCP servers and fix static assignments
- Document the address plan and reservations
Write down any device that has a fixed IP address, such as printers, cameras or a server.
About IP address conflict and DHCP fault finding
We trace where DHCP is coming from, disable any rogue servers and move fixed devices to reservations or addresses outside the DHCP range. Where the network has outgrown its address range, we can resize it or split it into VLANs. The address plan is documented so the next device added does not create the same problem. Duplicate addresses in the DNS records are cleaned up as well.
What usually causes it
- Two routers or firewalls both running DHCP
- Printers or cameras with static addresses inside the DHCP range
- A consumer router plugged into the office network
- Address range too small for the number of devices
Before we arrive
- Any existing logins, passwords or notes from previous IT help
- Access to the comms cupboard, server room and ceiling spaces
- A list of known problems and when they tend to happen
- Details of your internet provider and connection type
What a visit looks like
When you book IP address conflict and DHCP fault finding, you tell us what's going on and we reply with a time that suits you and a price. Nothing starts until you're happy with both.
On the day, the technician arrives, looks at the problem in person and confirms the plan with you before starting. If something turns out different from what was expected - a part is needed, or the cause is somewhere else - we stop and agree the change with you first.
When the work is done we test it with you, show you what was changed, and leave the area tidy. For business jobs we note what we did, so there is a record for whoever looks after your IT next.
Pricing
Each IP address conflict and DHCP fault finding job is priced before work starts. The price depends on what's involved - the size of the site, the equipment, and whether parts are needed - so the quickest way to a number is to tell us about the job on the booking form.
There is no contract and no monthly fee. You book the job you need and pay for that job.
IP address conflict and DHCP fault finding: questions
Why does it happen at random times?
Conflicts often appear when a device reconnects or its lease renews, which is why the problem can seem intermittent. Finding the source fixes it. A packet capture or the switch logs usually show the rogue device quickly.
Do we need a server for DHCP?
No. The firewall or router can handle DHCP for most small offices. What matters is that only one device does it for each network. Printers, cameras and servers get reservations so their addresses never change.
Do you do IP address conflict and DHCP fault finding on site?
Yes. We come to businesses and homes across Auckland and Hamilton and do the work where the equipment is.
How much does IP address conflict and DHCP fault finding cost?
It depends on what's involved. Tell us about the job on the form and we'll confirm the price before any work starts.