we have installed XR2 card for distribution on a PIV system with 512Mb RAM , we have about 60-70 clients connecting to this and getting between 128-256kbps connections. we are getting very high latency and regular RTOs. Amazingly signals are good ack-timeout is on dynamic and varies between 30-56 for all users and CCq is varying between 92-100 … we still get regular problems on this.
Recently we tried something that was changing frequency , after doing this for about an hour or 2 everything seems to work ok , then again the same problem.
on the client end we are using several realtek based devices such as Micronet 918GK, Alfa AWAP608, DLINK PCI cards etc etc
can you please help us in this as we have been facing problem in PtMP for a very long time now and dont know how to resolve the same.
I assume that your 60-70 clients are at varying distances from the AP?
Have you tuned the TX power for each client or are you just blasting out maximum power on each? You need to make sure the TX power of clients close to the AP is turned down to the bare minimum, but leaving a reasonable fade margin or you may be masking the clients further away. Don’t forget that one client’s legitimate signal is effectively noise to all the others.
Make sure you haven’t got a client with a virus or some other software like Peer2Peer file sharing, .e.g. Kazaa, Limeware etc. these could easily be swamping your system.
I had a customer that was infected with a mailbot virus and this brought the AP to its knees.
I had several customers using file sharing software, in the end I had to put in rules to limit their P2P bandwidth to a trickle during the day and only allow high bandwidth through the night. This was my main driver for migrating to MT RouterOS, the ability to control P2P traffic.
what is the meaning for “about” i’m sure you know how many cpe you have,
anyway i suggest another AP and no more than 30 users.
and what would you expect with a mix bunch of cpe with different chipset?
running p2mp in public network is simply impossible. One rule which is an axiom CHEAPER WON’T WORK FOR VERY LONG. Designing a p2mp where you have no control over your clients usage (type of usage) is impossible. For designing a p2mp you need extensive knowledge of internet activity at various layers of OSI along with weakness of 802.11x.
regards
neeraj
I have a similar Setup on top of my Office and it is serving more than 40 users. I don’t have any clue how many user it serves but the max. number of concurrent user was 72 users one 1 day.
I never had a problem with the Base Station expect of once when a person was P2P’ing on my network.
