NO internet?          

No WiFi?
There are vast ways to lose the internet. (bad hardware or corrupted XP or infected I will skip)  See my wifi works but not well or reliably.

I will assume you are at home ,not sitting in say Star Bucks drinking their burnt coffee bean juice.

I will not try to guess, who or what your ISP (internet service provider) is,  Dial-up,  DSL, SAT modem, 1 to 16 channel cable,  FIOS or 3/4g wireless card.(or usb wireless stick)
I will assume you have THEIR  modem sitting there, and it works,  your ISP's job is only that.  (make that work).
Ok modem is ready. (I will not do dial up ever again, sorry...) The Modem must have power and shows status it is connected on its LED lights.(it has a manual guide to cover that)

Let say the cable modem is wired to the ISP cable and the modem jack on the rear (Ethernet) is wired to M (for modem) jack below and Power P wire is connected to power pack and has power to the wall AC.
I will assume you have a router (be wise ) and it has  bank of Ethernet ports and wifi antenna's.
See E port below Ethernet port 1 to 4 all work , connect your PC to port 1,  and the other end of this CAT.5/6 cable say 12  foot long. (buy one cheap, always have this cable ready)
This Cable wired goes to your PC Jack  In the same kind of  RJ45 jack called LAN or Ethernet.

You turn on your PC and this E cable below starts working by the magic of Windows, (or Linux) (plug and play does that)
We always do this first so we can do fast MS updates or get huge video drivers or just use it all the time , it is the fastest connection of all , this one here is  a gigalan speed port. I use it all the time, at home.
Get this working before wifi, wifi is active later in this page, at the 2 antennas seen  below. (and must be programmed (configured by you) in order to work right)

Router on the left,  and the Desktop PC on the right has onboard Ethernet chip, (good Laptop PCs have the same RJ45 ethernet jack there.)
Photos: (the plug has a spring plastic lock, do not force it out, depress the TAB first)
THIS blue cable goes to E on the left.
This is a very common PCI Ethernet card, used on old Desktops,  The best ones are GigaLan rated and PCIe slots. The below right photo is an  Asus M5a99FX MOBO;

What if Ethernet fails.? It should not, but can. (running XP or VISTA on newer machines sure it will fail, both are now dead OS)  The XP plug  and play driver servers are now down, so  expect problems with XP.
I click Control Panel  in the start button, then pick device manager and then find this page below, photo3.
See "network adapters"  bingo. Below is LAN wired chip 82577  and below it is WLAN wireless chip. N6200, your PC has different chip names, but are very important.
See my Gigalan chip from intel (or yours might be Realtek or other brand)
Double left click it that line, first see "device is working" then if it's not working click  update Driver software..  (right clicked)
 If the Ethernet is dead, you can't  update Dead via the dead port.
(The classic Chicken and the EGG failure) If this happens to you? , (mostly on old XP ) you get the driver on another good internet working PC and place it on this internet dead PC.

If your PC has no local driver for your chip, it fails,  I then go to and get the  correct LAN driver,  for you exact PC and matched to your exact OS version.
If the ethernet is working you can click on the wireless chip below and do an update, in all cases W7 and UP.  XP is dead now. (like a barrel of rotting apples XP is)
Photo:3: W10 DM.
the next chip is wifi  in my case it is Centrino from intel.
Getting the above ETHERNET to work first , makes getting wifi up 10 times more easy, now that the internet is working.
If the above fails you are now in the chicken and egg , H3LL.  ( welcome to sneaker net,  at good PC#1 we get the driver, then sneak over to bad PS#2, and install it. (from HP we get)
Internet is working now, or you really want WIFI now? We use it only for CELL Phones here only, all else is GIGALAN'd networked to the max.

Step one is to make sure the wifi chip is working via above photo image, the  device manager,  find the driver at HP driver pages for your PC, if this above driver is missing or wrong there is no hope now.
The Task bar  Ethernet ICON will not have X marked across it, telling you the Ethernet is not dead here >

We enter this point Etherenet works and the wireless driver in DM above is not dead.  (if unsure then reload the wifi driver from HP now and first)
WIFI (wireless LAN WLAN):
Step 2, WiFi... wireless. I will do this manually for best security, no wizards do I  trust for wifi ever.
Next is configuring the Router, wireless pages. (I assume it's your router no the ISP and you know its password)
  1. Read the manual on your , router, mine is DIR655,  I read the manual and it tells me my router page is here.  Most router new , you power up and the LAN  is running now and firewall is in full protection.
  2. Page 16 tells me IP address is my page address. ,so paste that into any browser I use FF v55 firefox. and land on the Routers home page, login.
  3. The user name is admin and  the password is blank (changed my PW day 1, to "something secret")
  4. I click Setup, click wireless settings top left. click manual wireless setup (bottom of page)
  5. Bingo you are there.See below settings,  These are best .
  6. Set the side to your DOG name or whatever floats your boat.  FIDO2, Is one silly example. Do not use same names as others seen in your hood.
  7. Next I pick a channel not used in the hood most.  (least used) Ch6 is  good guess.
  8. Avoid WEP, totally use WPA1 or 2.and last pick a KEY (use words not in any dictionary, like 1$xy59!@z
  9. Save settings first then exit setup and at any cell phone you can now see FIDO2 and connect easy. and last you PC does the same. (FIDO2, WPA, Key) 1,2,3 you are in.
  10. On the PC make sure its not in airplane mode. (wifi off nor off in BIOS) then do the setups, in said PC. FIDO2, WPA, and key) bingo you are now connected via WIFI.
Photo 5
This is my router,  yours will be functionally the same, but total different pretty screens and have it's own login rules. (and IP address)

I kept this as short and sweet as possible.  (I don't use WPS , read you router manual to set up wireless protected setup and PIN) I consider WPS to be non secure.
If all this works, now the Internet works 2 ways, now, wired and wireless.
Best is to know how to use both, so you can fix problems as they arise.

How to switch back and forth from Wifi and wired (Ehernet)? {after both work right}
There are 2 access points on W10.
  • On the task bar double click this tiny connection icon (as see here, double left click this red arrow icon and pick any network you own (means have sign in credential to)
  • Way 2 is next,, Push start  menu  and pick "Settings" (in the windows key usage , menu  Settings is in the "S" section )
  •  Then in the new W10 Setting menu pick , "network & Internet"
  • Then see the below menu,  if  Wi-Fi is missing that means your wifi drivers are missing wrong or corrputed, the cure is obvious; reload them fresh from HP.
  • If HP did not make your Wi_Fi device, then get the driver from you maker, of said device, 100 of makers, so, only you know what you bought and installed.
  • If said device is a USB -WiFi dongle, you need to get USB working first then get the correct driver from the dongle maker.
  • See the left side here,  If I click Ethernet I can use that to connect to it. Below is my 2 WI-FI routers, daisy chained on my Giglan , FIDO1 and 2.
  • I am on Ethernet now, but if I was to click Fido1 and connect it would then be on Wi-Fi.

The below  is showing I am connected to Ethernet now.

Why WIFI is so hard to use and keep working,  WIFI is a problem child, unlike Ethernet, wired.
Let me list them.
  1. Drivers bad. or using the wrong ones. tops the list, see above sections for the cure.
  2. You are too far from the Router antenna's   even 50 feet is too far and if bricks in walls, ouch, less. (or run 2 or 3 wifi repeaters in your home, like I do)
  3. Lots of neighbors use you channels,  so use a different  radio band/channels , move higher see photo 5 above?, Use this program to see them all, and then move to a quiet channel.
  4. Interference,  All radios made even wifi and blutooth can be jammed,  called RFI , Radio Freq, Interference.  (like using near by LED lights, or old land line wireless phones (cheap) and other noisy lamps, (vast)
  5. One tactic that works well,  is to kill the power to all rooms in the house, but the one AC power  jack running your router/modem,  does wifi work now? BINGO.  RFI  is real.
  6. Not running dual band WIFI ! single band is a relic, upgrade now.
  7. Even street lights in the hood can in fact jam wifi,  the ones with choppers inside,  just like the LED desklamps used in your rooms  and are very bad RFI emitters.
  8. Some florescent lamp fixtures, have some very nasty digital ballast device inside, (not the nice transformer kinds) and it's really this very noisy  chopper inside,  ditch them for CLASS B rated devices, FCC.
  9. Old relic baby monitors also Jam 2.4GHz radio band,  This band is super busy.  Avoid all 2.4GHZ , other devices in the home that are not wifi devices.
  10. Learn to that wifi is  a SHARED resource , and is in public shared  too.  Wifi uses collision rules, that if overloaded/over crowded ,this causes it to run VASTLY SLOW.
  11. Used wired, any time you can and avoid all this PAIN.  (a win for sure)
(1)The word kill above means flip the circuit breakers to OFF
or unlug all things in all rooms. (all power cords unplugged from walls ) (but no the router or modem and the PC under test)

version 1.  9-19-2017