G+_Nolan Taylor Posted May 2, 2016 Share Posted May 2, 2016 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, Link to comment Share on other sites More sharing options...
G+_Tyler Pearson Posted May 2, 2016 Share Posted May 2, 2016 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? Link to comment Share on other sites More sharing options...
G+_610GARAGE Posted May 2, 2016 Share Posted May 2, 2016 I wonder if you have a dhcp server on under another netmask. So it works until the computer gets its update ip address and netmask making it inaccessible to your main network. Link to comment Share on other sites More sharing options...
G+_Nolan Taylor Posted May 2, 2016 Author Share Posted May 2, 2016 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) Link to comment Share on other sites More sharing options...
G+_Nolan Taylor Posted May 2, 2016 Author Share Posted May 2, 2016 610bob I checked all my network settings. My Office Router/WIFI is my DHCP server and its subnet mask is 255.255.255.0. The DHCP is turned off an all my other equipment and the subnet masks are set to 255.255.255.0 Link to comment Share on other sites More sharing options...
G+_Nolan Taylor Posted May 2, 2016 Author Share Posted May 2, 2016 Also I am getting about 40% signal strength. That doesn't seem to be the issue because once I lose internet its gone until I reconnect. Its not like it comes and goes with varying signal strength. Link to comment Share on other sites More sharing options...
G+_Black Merc Posted May 2, 2016 Share Posted May 2, 2016 WiFi survey may turn up interference but may miss rf interference in the same band.... directional may help with either. Link to comment Share on other sites More sharing options...
G+_Josiah Gross Posted May 2, 2016 Share Posted May 2, 2016 When you lose connection to WAN, you say you can still access the rest of the network. Are you able to ping an outside IP like 8.8.8.8 ? Could be a DNS issue across the bridge...like the DNS servers aren't being populated. Link to comment Share on other sites More sharing options...
G+_Nolan Taylor Posted May 2, 2016 Author Share Posted May 2, 2016 Josiah Gross? Pinging 8.8.8.8 is how I can tell when I lose WAN. Once I lose WAN I get either "Reply from http://192.168.0.252: destination net unreachable" or "Request timed out" in the CMD terminal.? Link to comment Share on other sites More sharing options...
G+_Josiah Gross Posted May 2, 2016 Share Posted May 2, 2016 What if you set a static IP on the client device you're testing with? Link to comment Share on other sites More sharing options...
G+_Doug Wagner Posted May 2, 2016 Share Posted May 2, 2016 What does a tracert 8.8.8.8 give? Can you run same trace during outage from your internal router? Link to comment Share on other sites More sharing options...
G+_Seth Leedy Posted May 2, 2016 Share Posted May 2, 2016 Do your routing tables change at all before/after the change? Link to comment Share on other sites More sharing options...
G+_Jason Marsh Posted May 2, 2016 Share Posted May 2, 2016 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. Link to comment Share on other sites More sharing options...
G+_Brian Moses Posted May 2, 2016 Share Posted May 2, 2016 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. Link to comment Share on other sites More sharing options...
G+_Black Merc Posted May 3, 2016 Share Posted May 3, 2016 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. Link to comment Share on other sites More sharing options...
G+_Brian Moses Posted May 3, 2016 Share Posted May 3, 2016 Yes sir ... works sweet Link to comment Share on other sites More sharing options...
G+_Ben Reese Posted May 3, 2016 Share Posted May 3, 2016 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. Link to comment Share on other sites More sharing options...
G+_Brian Moses Posted May 3, 2016 Share Posted May 3, 2016 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. Link to comment Share on other sites More sharing options...
G+_Nolan Taylor Posted May 3, 2016 Author Share Posted May 3, 2016 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! Link to comment Share on other sites More sharing options...
G+_Nolan Taylor Posted May 3, 2016 Author Share Posted May 3, 2016 One thing I forgot to mention is that in DD-WRT the BridgeHost is set to AP and the BridgeClient is set to Client Bridge (Routed) Link to comment Share on other sites More sharing options...
G+_Jason Marsh Posted May 3, 2016 Share Posted May 3, 2016 So, what build of DD-WRT are you using, and what is the hardware version (if any) of your (client bridge) AP? Link to comment Share on other sites More sharing options...
G+_Nolan Taylor Posted May 3, 2016 Author Share Posted May 3, 2016 Jason Marsh? Both BridgeHost & BridgeClient are DD-WRT v24-sp2 (03/25/13) std - build 21061. Not sure that you mean by hardware version maybe this? TPLINK TL-WDR4300 v1? Link to comment Share on other sites More sharing options...
G+_Brian Moses Posted May 3, 2016 Share Posted May 3, 2016 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. Link to comment Share on other sites More sharing options...
G+_Nolan Taylor Posted May 3, 2016 Author Share Posted May 3, 2016 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! Link to comment Share on other sites More sharing options...
G+_Jason Marsh Posted May 3, 2016 Share Posted May 3, 2016 Nolan Taylor Glad to hear you got it resolved. Of course, update the thread or make new if it goes south on you again. Brian Moses You should make your own thread/post instead of piling on to another's post. Link to comment Share on other sites More sharing options...
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