wifi connection issue

LauraJ23

LauraJ23

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Laura
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Hi there, have been in Devon for a week, the property had wifi. Laptop worked fine all through the week, get back home and the wireless will not allow internet at al it states

"wifi" doesn't have a valid ip configuration, the trouble shooter and diagnose doesn't work, tried numerous times, also reset and restarted the router, left it overnight and still the same issue Phones and tablets which were used in devon on the wifi connect and work here, plus another laptop connects fine.

Any help would be greatly appreciated,
 
Have tried telling the laptop to forget your wifi network then reconnecting?
 
Open a command prompt (type cmd in the run box and press enter)
Type ipconfig /all [Enter]
What you're looking for is output from your wifi card, something like
I suggest copying the details away to a text file and saving it.

Wireless LAN adapter Wireless Network Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Killer Wireless-N 1202 (2.4GHz and 5GHz)
Physical Address. . . . . . . . . : [Hidden by me]
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : [Hidden by me](Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.3(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : 12 March 2017 09:05:06
Lease Expires . . . . . . . . . . : 13 March 2017 09:05:12
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1

If the IPv4 Address is 169.x.x.x, it means you are not getting a lease from your router.

There are a whole bunch of commands I could suggest but a question first:
Are all your patches up to date (in Novemeber / December there was a dodgy IP stack patch, which has been fixed, but you may not have it yet).

Try doing a restart of the laptop (IMPORTANT - I really do mean restart, not shutdown/power on) as that should clear the IP configuration if you're on a 169 address, see if you can connect, re-run the ipconfig /all command and see what's changed.
 
also as above at the command prompt doe an ipconfig /release the an ipconfig /renew.
 
Have you had a recent windows patch it could be attributed to? (Look in the windows update history and google the KBs)
If ipconfig /release followed by ipconfig /renew is fixing it, then it would appear to be software related.
To avoid doing this by hand, you could write a little batch script and add it to the windows startup folder (or to HKCU\software\Microsoft\Windows\CurrentVersion\Run in the registry).
 
LC2 said:
Have you had a recent windows patch it could be attributed to? (Look in the windows update history and google the KBs)
If ipconfig /release followed by ipconfig /renew is fixing it, then it would appear to be software related.
To avoid doing this by hand, you could write a little batch script and add it to the windows startup folder (or to HKCU\software\Microsoft\Windows\CurrentVersion\Run in the registry).
Click to expand...

It seems ages since it did updates, will have a look in the history.
 
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