Member Avatar for MiketheBook

My wife and I have just moved into the annex of a friend's house. Since our phone/broadband hasn't been installed yet because of complications we are using our friend's Internet through home plugs and LAN cables which has worked fine for me and my Mac Mini and obviously because of the LAN link no passwords were needed. No problems from the word go. But, apart from a short window of time when it worked, my wife's laptop now refuses to connect to the Internet by any of her browsers: Chrome, Firefox and Explorer and comes up with the Error 105 message on Chrome, her main browser. We are using exactly the same system of home plugs as we used in our previous home, and I've checked that her LAN cable and home plug are working fine. I know nothing about DNS etc so I'm stuck. What next please?

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Dani AI

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Chrome "Error 105" means the browser could not turn a hostname into an IP address — a DNS lookup failed. Because the Mac Mini on the same plugs works, this points to something on the wife's laptop rather than the shared network hardware. Intermittent failures like this are usually caused by the laptop getting no or the wrong DNS server, a stale local resolver cache, a security/proxy/VPN interfering with lookups, or a buggy network driver.

As and suggested, the single most useful thing is a snapshot of the laptop’s network settings (IP, gateway, and the DNS server entries) taken at the moment the error occurs. If it fails again, save the adapter details (Control Panel → Network and Sharing Center → Change adapter settings → right‑click the adapter → Status → Details) and paste that text into Notepad. To copy text from a command window: right‑click the title bar → Edit → Mark, select the text and press Enter, then paste into Notepad. A photo of the screen is acceptable if the text is clear.

Do a focused DNS test against a known public resolver. For example:

nslookup www.example.com 8.8.8.8

If that resolves but the laptop’s configured DNS does not, the laptop’s DNS settings are the culprit. For a quick test, temporarily set the adapter’s IPv4 DNS to public servers (Google 8.8.8.8 and Cloudflare 1.1.1.1) via the adapter’s IPv4 Properties, test browsing, then revert if needed.

Other checks: look for an active proxy/VPN or security suite that intercepts DNS, verify the hosts file has no bad entries, update or reinstall the network driver, and reboot the powerline adapters plus the router. When the fault recurs, post the saved adapter details and the nslookup output (mask any personal IPs if desired) — that information will allow helpers here to pinpoint whether the problem is DNS configuration, the resolver server, or something local to the laptop.

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Member Avatar for Rik_

On her computer, click start and type cmd in the search box and press enter. In the dos box it brings up type ipconfig /all then post the result here and we should be able to get an idea as to what is going wrong.

Member Avatar for MiketheBook

Thanks for that. Unfortunately/fortunately I turned it on this morning and its working fine so I won't be able to see if there's a problem until it happens again if it does. BTW how do I get all the stuff out of the command box to post it here?

Member Avatar for Rik_

You will have to make note of it, I don't think its possible to paste out of a dos box.

Member Avatar for MiketheBook

There is a lot of information comes up. Is there any part of it you would be interested in - the problem is happening again. Also I wondered if I was able to photograph the screen well enough is there a way of posting a photo of the DOS box here in the forum?

Member Avatar for CimmerianX

Copy and paste is fine, screenshot too. Does her machine have an IP assigned from DHCP? ipconfig tells you this. Can she ping her own IP. CAn she ping the gateway IP? Can she ping an IP beyond the gateway? Can she ping via FQDN (servername)? Does the servername at least resolve to an IP?

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