Cannot connect to internet when using router as access point

Cannon71

Reputable
Jul 6, 2015
8
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4,510
Thanks everyone for taking a look at this. I'm completely lost on what is wrong with this network.

I have a 100m cat5 cable running from my house to my garage, buried underground in PVC piping. I have an old wireless router that I am using as an access point in my garage. DCHP on the old router is disabled and there are no conflicts.

I tested this in my house going from my modem/router to the access point using a cat5 patch cable. I could connect to the internet going both wired and wireless through the access point.

Out in my garage, when I connect my laptop to the 100m cat5 cable I can connect to the internet with no problems. When I connect my access point, which worked fine in my house, I cannot connect to the internet. Why is this?

I don't understand why my laptop connects to the internet with no problems, but when I connect to the access point I get the No Internet/Limited message. I have everything hooked up correctly and I tested the configuration in my house.

Any advice will be greatly appreciated and I am completely lost.

Thanks in advance.
 

kanewolf

Titan
Moderator
Which port on the AP are you using LAN or WAN? Can you connect your laptop via wire to the AP which is then connected to the house?
What IP address does your laptop get when connected to the AP?

Did you put the RJ45 ends on the 100m cable or are they factory?
 

Cannon71

Reputable
Jul 6, 2015
8
0
4,510
I'm using the LAN ports.

I cannot connect to the internet through the LAN ports on the AP. If I connect to the cable directly to my laptop I can connect.

I put the RJ45 connectors on myself. The cable checked good.
 

kanewolf

Titan
Moderator
OK. If you did the RJ45s, did you follow the color code for TIA 568B ? Color code is very important with RJ45s. If you don't have the color code right, the cable with show 8 wires connected, but because the pairs aren't in the correct order, the noise in the cable will mess things up.

My guess is the router is trying to auto-negotiate, the speed between 10/100/1000 . It is failing to auto-negotiate. You may be able to force a speed in the user interface.
 

Cannon71

Reputable
Jul 6, 2015
8
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4,510
I followed that color code chart and all the wires are paired correctly.

I did notice that the light on the AP LAN port where the cable running to the house is connected doesn't stay on. When I connect my laptop to a AP LAN port, the light stays on.

does this suggest that the cable running to the house is bad? and if so why do I get internet using that cable plugged directly into my laptop? It would seem to me that if the cable running to my house was bad I wouldn't get connected to the internet. Are routers "less forgiving" when making connections that computers?
 

kanewolf

Titan
Moderator


I just though of something, if you have devices that are fast ethernet ONLY on both ends, then you would need a crossover cable because you are creating a switch-to-switch link with the access point. The laptop is an end device and does not need a crossover.

The easiest way to test several things would be to get a gigabit switch for the garage. It will have an auto-crossover capability. It will give you another data point for debugging.
 

Cannon71

Reputable
Jul 6, 2015
8
0
4,510
But I have tried and tested all these devices in my house using a patch cable. Modem/Router>patch cable>AP. Everything worked fine with my laptop hooked up wired and wirelessly. Even my phone connected to the AP wireless.

The only part I couldn't test was the cat5 cable running from my house to the garage. But I'm thinking the cable is good because I tested it with a cable tester after I put on the RJ45 connectors and I works with my laptop connected.

I don't understand why my laptop connects through the cable running to my house, but the AP doesn't connect using the same cable.
 

Cannon71

Reputable
Jul 6, 2015
8
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4,510
the AP is an old Linksys WRTG Wireless G. The modem is a AT&T DSL Netgear.

I don't remember the cable tester I used. The batteries died in it and it's like $80 just to order the batteries. I installed the cable running from my garage to my house several months ago. I'm sure it only checked for continuity and not for noise or cross talk. Basically, it just checked that the connectors are put in correctly.

I'll go out tomorrow and get my hand on a new cable test set.

Thank you for all your replies and the troubleshoot help.
 

kanewolf

Titan
Moderator
A WRT 54G will definitely be a fast ethernet device. The DSL netgear maybe/maybe-not. The crossover cable requirement is still a possibility. A cheap gigabit network switch is, in my opinion, the cheapest test tool you can get. If you put that switch on the end of the cable at the garage and everything works, then try plugging the AP into it. I bet it works also and you just needed a crossover cable.