# This is dictation. The wireless system used in home networks is sometimes called Wi-Fi and I have to teach this program what Wi-Fi means. From now on when I say it Wi-Fi it means a wireless phone system. Okay, that was not for you, it was for my dictation secretary. She is kind of dumb, actually she is a computer program.From your post.
Even If i have set up strong wifi password, constantly changing it.
Added MAC filtering. Thief still can access internet. Even I dont see any unknown devices on DHCP list.
Is there any options to fill in the router, to stop unauthorized access?
I see you have a home network. That presuppose you connected a second router in order to increase the range of the Wi-Fi signal and make Wi-Fi available in your entire house. Here is the apparent flaw in your plan. If both routers have Wireless access, then both routers have to have password enabled. Also, the physical location of the second router is critical. Here is why.
Let's suppose you have a neighbor that is quite friendly and generally honest and would never steal anything out of your garage. But sometimes you leave the garage door unlocked and your neighbor sneaks in through the garage door locates your router and presses the reset button on the back of the router. He knows that will clear the password on the Wi-Fi access and he now can get into your Wi-Fi without knowing the password because there is no password. This is one of the reasons why a second router should not be in a location where somebody can access it without your knowledge.
Now that's one point and that assumes you have the second router in the garage.
But now for the second point that you have to pay attention to.The password of the second router is controlled only by the second router. The first router will not transfer password information to the second router. In other words, home routers are not made to work together as integrated systems. The second router does not inherit the password restrictions imposed by the first router. The first router can only control Wi-Fi access on its own Wi-Fi transponder. The second router has to have a password set for its on-board wireless transponder.
Depending on how the routers are set up, it might not be possible to access the second router through the first router. In that case you have to take the cable that goes to the second router and plug it into your computer. Then you can access the second router using the local IP address for that router. Possibly the address would be: 192.168.0.1 and that is what you would put in the address bar of the browser. You will have to check your documentation to see how your routers are set up for local IP address. Anyway, when you get into the second router you'll have to set the password for the second router. Also, you might want to take a note about what channel each router is using. The routers should use different channels but could share the same password. In fact, both routers could use the same station ID and the same password if they have different channels. Went to routers are together in the same area it is important that they do not use adjacent channels or even the same channel. So you would have to come up with a set of channel numbers that would just reduce interference in your area.
Nevertheless, the most important point is that both routers must have their own Wi-Fi password in place. As for the MAC filter in the first router, it may only work for the Wi-Fi section of the router. And as I stated earlier, each router handles Wi-Fi separately.
To summarize, you need to set the Wi-Fi password for the second router. And you need to make sure the second router is not in a location where somebody could sneak in and reset the router.
I believe those two details will resolve your problem.
