You have to set it to >512 for DNS. Remember that DNS is UDP so if the packets go away because the wireless medium you are using is lossy then there are no more re-transmits. Setting the RTS/CTS to just at the size of a UDP DNS packet creates a virtual TCP-like network for those sized packets.
ryan On Thu, Aug 26, 2010 at 9:42 AM, Kristian Hoffmann <[email protected]> wrote: > An RTS/CTS setting of 3000 means it's effectively disabled. You'd have > to set it below 1500 for it to do anything. It's not looking like > that's your problem anyway. RTS/CTS will help performance when > customers upload large frames (specifically ones larger than your > RTS/CTS setting). You'd have to set it to <100 for it to affect > DNS/ARP/ICMP packets, and that would likely be a really really bad idea. > > My money is on too many layers of MAC NAT. Tranzeo and UBNT stations do > it regardless, and MikroTik's do it with station-pseudobridge set. Do > you know how many MAC NAT'd stations you have changed together? If > there are multiple hops, switching intermediate ones to WDS should > help/resolve the problem. > > > -Kristian > > On Thu, 2010-08-26 at 09:15 -0600, Mark Dueck wrote: >> I have about 25 clients on this AP. I think only 2 of them are NS2's, >> the rest are SL2's and they are all updated to 5.0.4 firmware, which has >> the fix for the limited connections that the 4.x firmware had. >> >> All the Tranzeo's have their RTS at 3000, their default. I checked the >> NS2's, but I can't find that setting in the webGUI. How do I >> check/change that? >> >> On 08/26/2010 07:56 AM, Ryan Spott wrote: >> > Hey Mark, >> > >> > How many CPE are attached to your AP? >> > >> > Have you adjusted RTS/CTS Settings? Take a look here: >> > >> > http://www.tranzeofaq.com/RTS-CTS.html >> > >> > ryan >> > >> > On Wed, Aug 25, 2010 at 9:09 PM, Mark Dueck <[email protected]> wrote: >> > >> >> I don't think it's a DNS because most clients that are complaining are >> >> from >> >> one AP. Today I got one that's from a diff AP that said their net was >> >> intermittent. >> >> >> >> I myself am browsing on the same network and never experience that >> >> problem. >> >> I have the same settings. >> >> >> >> Mostly Tranzeo SL2's as clients, with 2 PowerStations as AP's. The rest >> >> of >> >> the AP's are all Tranzeo. All clients are routed internally, but after the >> >> client radio everything is bridged. I rebooted the gateway to clear the >> >> arp >> >> cache, but clients are still experiencing the same problem. >> >> >> >> Could it cause a problem with the fact that the gateway is multiwan and 2 >> >> of >> >> it's wan's are on the same network as the clients, but different subnet. >> >> I >> >> know I need to VLAN, but had some issues with VLAN not connecting. >> >> >> >> >> >> On 08/25/2010 05:51 PM, Josh Luthman wrote: >> >> >> >> What kind of radios? >> >> >> >> You sure it isn't a problem with the DNS servers? >> >> >> >> On Aug 25, 2010 7:44 PM, "Mark Dueck" <[email protected]> wrote: >> >> >> >> Hi, >> >> >> >> I've got some issues on my network with clients complaining they have no >> >> internet. When I come around, as soon as I ping gateway and then google >> >> dns, the browsing is back up. I showed a client how to do this, and he >> >> says whenever his internet goes down, as soon as he pings it's right >> >> back up. >> >> >> >> Anyone have ideas why this could happen? >> >> >> >> Thanks, >> >> Mark >> >> >> >> >> >> -------------------------------------------------------------------------------- >> >> WISPA Wants You! Join today! >> >> http://signup.wispa.org/ >> >> -------------------------------------------------------------------------------- >> >> >> >> WISPA Wireless List: [email protected] >> >> >> >> Subscribe/Unsubscribe: >> >> http://lists.wispa.org/mailman/listinfo/wireless >> >> >> >> Archives: http://lists.wispa.org/pipermail/wireless/ >> >> >> >> >> >> >> >> -------------------------------------------------------------------------------- >> >> WISPA Wants You! 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