PAul, I'll try updating the firmware, that makes sense to try. Upgrading from 3.10 to 3.28, is it likely that I can do that remotely without my client configuration getting lost in the process? (I know how to upgrade packages, I just didn't know if config files are consistent through all the V3.X revs)
Tom, We replaced both XR900s on both sides of link. So its not a bad radio card. We did not replace the RB 411, yet. Its also the first time we used a 411 w/ 900Mhz card, so we dont have a track record for knowing compatibilty, yet. Tom DeReggi RapidDSL & Wireless, Inc IntAirNet- Fixed Wireless Broadband ----- Original Message ----- From: "Tom Sharples" <tsharp...@qorvus.com> To: "WISPA General List" <wireless@wispa.org> Sent: Wednesday, September 16, 2009 2:20 AM Subject: Re: [WISPA] Mikrotik Problem - 900Mhz-WDS-incremental speed degradetpZero then drop- repeat. > Maybe just bad hardware at Subscriber B? Last week we had an XR-9 ptp link > in Houston that behaved somewhat similarly, great speed in one direction, > but next to nothing in the other. Shotgunning the radio & motherboard (an > Alix) fixed it. Haven't gotten it back yet so don't know which went bad. > > Tom S. > > ----- Original Message ----- > From: "Tom DeReggi" <wirelessn...@rapiddsl.net> > To: "WISPA General List" <wireless@wispa.org> > Sent: Tuesday, September 15, 2009 5:25 PM > Subject: [WISPA] Mikrotik Problem - 900Mhz-WDS-incremental speed degrade > tpZero then drop- repeat. > > >>I have a problem with Mikrotik I have not been able to solve. Wondering if >> anyone has any insight. >> >> A summary config is.... >> >> I have a 433AH setup as AP with 1 XR900 and 1 R5H (5.8Ghz). The Cat5 >> Ethernet port goes to a SMC VLAN switch, where the SMC tags and untags >> VLAN >> ID, and continues to the Backhaul Radio. My point here is the MT itself >> does >> not have any VLAN configured. >> >> I need everything to act as a True Bridge, so I'm using WDS on >> everything. >> Both mPCI cards are set up as "AP" and then WDS interfaces configured. >> The R5H sector has one subscriber, so there is one WDS interface created >> for >> that. The XR900 has two subscriber points. So there are two WDS >> interfaces >> set up for the XR900 sector, one for each subscriber. So all three WDS >> interaces and the Ethernet (to backhaul) are all bridged togeather under >> one >> Bridge. >> >> SubscriberA has a 433AH also, and actually is a repeater site. So it has >> two >> mPCI each configured for WDS, and then the WDS ports bridged togeather. >> The >> primary mPCI that connects to the above first AP, is set for WDS Slave. >> This subscriberA (repeater radio) works normally. I can run MT bandwdith >> test continually at consistent speed. >> >> As well, the subscriber for the R5H sector above also is set up for WDS >> Salve, and works properly, and tests consistently with Bandwdith test. >> >> SubscriberB for 900Mhz sector is the problem. It is a RB411 w/ a 24V-1A >> PS, >> w/ XR900. Originally it was set for WDS Slave also. It is now set for WDS >> Station, and performs the same as if WDS Slave. When running MT Bandwdith >> test both UDP or TCP, Sitting at the 433AH AP's winbox, I get the >> following >> results.... TXing it works perfectly and consistently. >> But if doing a receive test.... It starts out at about 800 kbps, then >> slowly >> reduces speed incrementally, down to 500 kbps, to 300kbps, to 100kbps, >> etc, >> down to Zero. When it reaches Zero mbps, the radio link disconnects, and >> immediately restarts itself. Speed starts back up at 800 kbps or so, and >> the >> same thing repeats. If doing Bi-directional tests of course the same >> thing >> applies, because it receives also. >> >> Noise is low at teh SU, about -67, and -74 at AP. At first I thought it >> was >> noise at the IP, because occastionally SNR gets very low. .But.... >> SubscriberA has a lower signal at -84 and does not experience the same >> problem. Just for grins, I tried playing around with TRansmit power at >> the >> SubscriberB, but that had no positive effect. As well, as a test, I >> disabled the second WDS interface to SubscriberA, and no change. >> >> To be clear... SubscriberA and SubscriberB each have their own WDS >> interface >> configured on WLAN1 of the 433AH AP. >> I am using embedded MTOS V 3.10 on each. >> >> What is causing this problem? Why is speed received from my SubscriberB >> incrementally degrading and breaking link? >> >> Bridge loops? Is my config valid? RB411 Bug? >> >> Tom DeReggi >> RapidDSL & Wireless, Inc >> IntAirNet- Fixed Wireless Broadband >> >> >> >> >> -------------------------------------------------------------------------------- >> WISPA Wants You! Join today! >> http://signup.wispa.org/ >> -------------------------------------------------------------------------------- >> >> WISPA Wireless List: wireless@wispa.org >> >> Subscribe/Unsubscribe: >> http://lists.wispa.org/mailman/listinfo/wireless >> >> Archives: http://lists.wispa.org/pipermail/wireless/ > > > > -------------------------------------------------------------------------------- > WISPA Wants You! Join today! > http://signup.wispa.org/ > -------------------------------------------------------------------------------- > > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ -------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
