Industry Forums > Wireless Service Providers > Major help please

Major help please

Are you running DHCP?

Yes I am running dhcp

reply to davidpaj
Are there any similarities between the customers? Same type of cpe or router?

reply to davidpaj
Sounds like maybe their DHCP lease expired and the routers weren't trying to pull one. Have you changed your DHCP subnet recently?

I've not changed DHCP settings in ages... I can however connect and reconnect multiple test machines, I get an IP and surf fine, would you say bad customer routers? So far all dlink 655's

reply to davidpaj
Have you tried the actuall Unplug power to radio, and router, wait 5 min, then plug in radio, wait 2min, then plug in router, wait 1 min?

It kind of depends if you are using the CPE in router mode with DHCP or bridging client pc/router back to a head end a bit. Either way, it does look like a DHCP issue. If it's at your tower, try and reboot that as well.

We see areas that have problems after a small or large spread power outage. Normally the above will fix it pretty quick. I really wouldn't think you would see widespread router failures at the same time of day, unless they have NTP that somehow messed up in relation to time for some reason.
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»www.wirelessdatanet.net

reply to davidpaj
Could be a Rouge DCHP Server handing out improper information.

reply to davidpaj
Should always have proper client isolation!

Okay, here's an issue, the clients ARE getting my dhcp server. With that said, they can load one site and no more. (the first one they visit) ideas?

reply to dmburgess
Post pings and trace routes to sites they can't load. DNS issue? Duplicate IPs?
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OptionsDSL Wireless Internet
»www.optionsdsl.ca

Once they load the initial site they can't even resolve anymore, gotta be dns doesn't it?

reply to davidpaj
Go though basic troubleshooting. sI'm sure the problem will be apparent.

reply to davidpaj
Any MTU issues? Which site are you having them load first?

Any site they load.. local news, mine, yahoo msn, etc, it loads the first one, and as long as they stay within that site life is good, go outside, no load.

reply to davidpaj
You're going to have to pick a point and work towards the other end. I would go onsite with an affected customer and start basic troubleshooting.

Run traceroutes and ping each device along the chain until you can find the break.

You may have a bad customer router out there that is answering all the arp requests it sees. Look at the ARP table of you access points, switches and routers and see if a single mac has a bunch of entries for different IP's.

I assume that your radio's are bridges. Since you said that taking the customer router out of line and going directly to the computer makes things function. If so, you are changing the MAC address that your network is seeing. Which is why I am leaning towards a possible ARP issue.

A rouge DHCP server (Or duplicate IP) could appear to have the same issues, especially if its IP address is the same as your network segments default gateway IP.
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I survived Hale-Bopp!

reply to davidpaj
Since you said that they can load one page, have them try loading www.whatismyip.com and make sure it is responding with an IP address on your network. If it isn't, you've got a serious issue with someone else capturing your customer's traffic with a rogue DHCP server.

reply to Rhaas
Okay, here's an update. I changed the DNS servers clients were getting and so far it seems to be working. What does this mean? Also, my AP's only have my address when I'm logged into them in the ARP table, is this good or bad?