What you’re seeing
- One laptop sits on 'Obtaining IP address' or 'Can't connect to this network' while the computer next to it works.
- A phone shows 'Incorrect password' even though the same password works on other devices.
- Older printers, scanners or smart devices cannot see the network name at all.
- A device connects but receives a 169.254.x.x address and has no internet.
Common causes
Every environment is different, but these are the causes our engineers find most often:
- The network was switched to WPA3 or a newer security mode that older devices do not support.
- The router only broadcasts on 5 GHz or 6 GHz, and some devices only have 2.4 GHz radios.
- MAC address filtering or a client limit on the access point is blocking new devices.
- Phones and laptops use randomized private MAC addresses that collide with filtering or reservation rules.
- The DHCP server has run out of addresses for new devices.
- A saved network profile on the device holds an old password or outdated security settings.
Why it matters
When only some devices fail, the problem often lingers because the office seems to be working. Meanwhile a new employee cannot get online, a card reader or receipt printer stops processing, or a visiting client cannot connect for a presentation. Staff end up plugging in long cables, sharing devices or using hotspots. Each of those workarounds wastes time and, in the case of personal hotspots, takes business data outside the protections of your firewall.
How AskTechGurus fixes it
Skip the trial and error. A certified engineer works on your actual system, finds the root cause, and fixes it properly.
Tell us what’s happening
Submit a ticket in about two minutes. Paste the error, describe what changed, and pick your tier. No charge to submit.
A certified engineer diagnoses it
A vetted, US-based systems engineer claims your ticket, usually within minutes during business hours, and investigates over a secure remote session you can watch and end at any time.
Fixed and verified with you
The engineer resolves the root cause and confirms with you that it’s working. You don’t just get a workaround, and you get a plain-English summary of what was wrong.
Pay only when it’s resolved
Fixed price from $99, invoiced only after you approve the fix. If it isn’t resolved, you don’t pay.
Frequently asked questions
Why does the same password work on one device but not another?
The password may be fine. The device may not support the encryption type or radio band the network now uses, and some devices report that mismatch as a wrong password.
Can we support old and new devices on the same Wi-Fi?
Often yes, with a compatibility mode or a separate network for older equipment. The right balance depends on how much security you can trade for compatibility.
How quickly can this be sorted out?
Many cases are resolved in a single remote session with a certified US engineer. Service starts at $99 and you pay only when the affected devices are connected.