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Hi All I have a networking questions that I 'm sure one of you can tell me what I have setup ...


G+_Nolan Taylor
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Hi All. I have a networking questions that I'm sure one of you can tell me what I have setup incorrectly. Here is a chart of how my network is setup. My office Router is connected to my wired modem from Comcast and is the Router that serves the DHCP IP addresses for both the office and shop location which is across the street from the office. I have a Wireless bridge setup that connects the office to the shop.

 

My issue is that when I connect a device to the Shop AP both wired or wireless I only have internet for about a minute and then I lose all internet. I still have LAN access to the whole network just no WAN. If I disconnect from the network and reconnect it does the same thing, internet for about a minute then no internet. Everything is working fine before the Wireless Bridge Host. I am not sure what I have setup incorrectly. Any thoughts on where to start diagnosing?

 

Thanks,

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Not sure how much this will help. I personally have never used a wireless bridge but I would connect a computer directly to the bridge client and see if it is receiving a signal, how strong it is and if you can get a stable internet connection. If so then your issue is with your Shop AP configuration. What products and models are you using?

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Tyler Pearson I have this feeling that its the Shop AP but I am unsure what is wrong. I have tired a different AP that was the same make and model with the same network settings and it did the same thing. I am unable to plug directly into the bridge client right now. I will reply once I find out that info.

 

Here is a list of Equipment:

Office Router/Wifi: AsusRT-N66U (Stock Firmware)

 

Wireless Bridge: TPLINK TL-WDR4300 (DD-WRT firmware)

 

Wireless Client: TPLINK TL-WDR4300 (DD-WRT firmware)

 

Shop AP: Dlink DIR-655 (Stock Firmware)

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The DD-WRT wiki is a mess to go through, but I used it a lot several years ago for just this sort of thing. Unless physics dictates it, you don't need a separate host to provide a base station for the bridge. If possible, I'd remove the bridge host and connect the bridge client to the office router.

 

Also, +1 for directional antennae. Super cheap, especially when considering the cost of headache remedies.

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My shop ap is DHCP enabled, its wan port is cat 5'd into the bridged wrt54g lan port. DD-WRT does the wifi bridging across to my office ap, the office deals out DHCP address across the bridge to shop ap...shop ap shows it as it's wan address.

 

Office ap is 192.168.0.1.... wifi bridge lan is set static 192.168.0.2 ... shop wan ip set by office ap is 192.168.0.111....I set the shop lan to 192.168.1.1

 

Office ap is wan'd to modem.

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Stop... are you using 'wan' ports on any of the ap and bridges? If so... that is the problem.

The ONLY wan port that should be in use is on the main/master router to the ISP modem.

The rest of the devices should be considered switches to spread to the endpoints. Wan ports on these are only useful for diagnostics or must be reconfigured (ddwrt) to be Lan enabled.

MHO.... if could have miss read something in the posts, but long ago I to thought a port was a port.

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Brian Moses looks like your setup is different than that of Nolan Taylor?. In your setup the shop wifi acts as a segmented network.

 

Black Merc? has a good point about the use of WAN ports - unless the router has an option to use the WAN port as another LAN port.

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I just use the routers to do the routing (math) and the bridge to do the wifi bridge ( I see it as a wpa2 pipe) between office and shop.

 

The wifi bridge wan port is automagically disabled in bridge mode, but you can plug anything that is looking for a dhcp server from the shop into the four lan ports and the dhcp server on the office ap lan will dole out ip's from 0.100 - 0.254 ... (could be from 0.3 - 0.254 ... but gosh how many internet of things does a guy need these days)

 

Yes Ben, from the four lan ports on the bridged router and the four lan ports on the shop router we can start to segment with routers to 'ad infinitum' (not quite but the term is catchy). Let the routers do the routing.

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Thanks everyone for your input. It has helped me narrow down where the issue seems to be. It appears that the issue is between the BridgeHost and BridgeClient.

 

Let me back up for a minute and explain how my wiring is routed in my network. Cable > Cable modem. Cable modem LAN port > Office Router/WIFI WAN port. Office Router LAN port > BridgeHost LAN port. Connected to one of the BridgeHost antenna sockets is a pole Omni Directional antenna (not sure the specs of this antenna, this was bought before I worked here and I have been unable to find any writing on the antenna). The BridgeClient has a panel directional antenna connected to its antenna socket. It is pointed across the street at the Omni Directional antenna. BridgeClient LAN port > Shop AP LAN port. Shop AP > Shop Devices (Wired & Wireless).

 

Here are some answers to some who have asked me questions.

 

Tyler Pearson I connected directly to the LAN port on the BridgeClient and I am having the same issue. So I back tracked to the BridgeHost and It works fine. This makes me believe that there is a configuration issue between the BridgeHost and the BridgeClient.

 

Josiah Gross I change to a static IP but left the DNS to automatic and it automatically goes to no WAN and giving the message in CMD "Reply from http://192.168.0.252: destination net unreachable"

 

Doug Wagner While I have a WAN connection it does the trace route just fine through several Comcast servers. Once the WAN goes down I am unable to do any tracert to 8.8.8.8.

 

I assume there is a DD-WRT setting that is causing an issue with the routing but I am not sure where to look. Anyone have any ideas where to start looking?

 

Thanks again for all your input!

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Bridge host, bridge client?

 

I'm setup using three routers. One in the office providing wifi/wired network + wan with cable modem.

 

Two routers in the distant shop. One set to bridge the office wifi/wan network to shop (it's running dd-wrt). I guess we can call the office router the host bridge, but its settings as a wifi/lan router are not altered from its standard settings + wpa2 security for wifi. (192.168.0.1)

 

Setting up the bridge router in the shop I log into dd-wrt from a wired lan port and go to 'setup' tab, change the local ip to 192.168.0.2 so it doesn't conflict with the office lan ip 192.168.0.1 .... Log back in at 0.2 and go to 'status' 'wireless' ... scroll down and click ' site survey' ... next window shows available wifi ap's.

 

Find my office wifi ap and click 'join' ... when it says connected ... click 'continue' ... now I see the 'wireless basic settings' window with my office ssid filled in .... change the wireless mode to client bridge and save settings ... then go to 'wireless security' and choose wpa2 personal to match the office ap's security settings and key etc and click save.

 

Then go to 'status' 'wireless' and see if the bridge is successful ... the page should show the office ssid, mac #, rate, channel etc. (click on 'status' 'wan' and it will say wan disabled)

 

Now I connect client-bridge lan port to the wan port on the second shop wireless router .... second shop router will now show a wan ip in the 192.168.0.0 range from the office dhcp server from across the bridge ... any client plugged into the client-bridge router lan port will receive an ip and will have access to the office network and office wan connection.

 

I change the second shop router local ip to a separate range then the office ... like 192.168.1.1 . Now I can log into the office router at 0.1, the client-bridge at 0.2 and the shop router at 1.1.

 

When I log into the office router and go to status-lan-DHCP Clients ... I don't see the shop client-bridge router in the table but I do see the second shop router and it is listed as 'wired' not wireless due to its wired connection with/through the bridge.

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So I believe I solved my issue. I logged into my BridgeClient and under the Wireless> Basic Settings tab there is an option when using Wireless Mode: Client Bridge (Routed) to use Manual Default GW Mode. I did that and put in the IP address of the Main DHCP server (Office Router/WIFI) and that seem to have solved the issue. I had put in the default gateway under the setup tab but I guess this needed changed as well. Thanks all for you help!

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