There are several reason behind of your LAN not working if you are using wireless network than you must check the cables are fixed at the proper place and also you must check the LAN is working properly, if you are facing that errors again and again like your system is keep crashing and keep closing without any problem so it can be very awkward situation to handle, generally when you have to keep open browser all the time and if this happening again it can lead to system problem as file start to corrupt and direct to window running very slow and crash again if it is not fixed yet.
If you are facing that kind of errors again and again then here are the vital steps to get the rid out of these errors
First check out the internet connectivity and if you find that there are errors with your LAN that you may find your internet explorer browser will stop working and it may keep freezing all the time so first priority is to fix that problem and if it is proper than you must check the router setting is proper and you must try to reconnect your internet by changing the password of your router.
If the above step is not working properly than you must check out Ethernet controller driver and if it is proper than you must check the LAN connectivity and disconnect it and check the cables of your PC and it is on proper place. Just try to reconnect it again by lan disconnecting.
The other way to get the rid out o this error is check your browser setting is proper and if you are using other browser like firefox, safari or any other browser than you must check it by reinstalling the browser and you can also fix the problem that is showing by using internet.
If you still facing the errors than you must scan your computer and by that you will be able to fix the problem, you can also get the expert support by visiting Itechacharya.com. you will get the complete support of any issue related to software and software.