@cindy brandt It might be that the 16/2 bandwidth is sufficient for 50 users but it might also be right up to the limit for two access points. (The vendor's site indicates no more than 24 per users Access Point)
To narrow it down, I would put a client hard wired through a 100mb or a gigabit switch through cat-6 to the TZ190 in addition to the access points and see if that client exhibits the same performance degradation that the wireless clients do. I addition, I would test throughput by transferring files within the local network from workstation to workstation, or workstation to server and see if there is a difference between the wired client and a wireless client. Rocky from the vendor website: http://www.engeniustech.com/datacom/products/resources.aspx?faq=8&ID=170 How many clients can associate to an Access Point? An Access Point is a shared medium and acts as a wireless hub. The performance of each user decreases as the number of users increases on an individual AP. Ideally, not more than 24 clients should associate with the AP because the throughput of the AP is reduced with each client that associates to the AP. > ------------------------------ > > Date: Tue, 14 Jul 2009 21:08:19 -0400 > From: cindy brandt <cbsli...@gmail.com> > Subject: need help with wifi problem in a large art > center > > We have a contractor who has set up a wifi network in our > large 3 > story art center which is an old building filled with > concrete walls > and columns. He has used a Sonic Wall router and so far 2 > access > points. The signal seems strong most of the time, at least > if measured > by the bars showing on the individual computers. The > problem is that > there are times when individuals cannot connect to the > internet even > with a strong signal. These users have connected in > the past so the > settings must be correct. I am pretty sure that my > settings are > correct and often I have no problem at all for an entire > day. But > then I have lost the connection sometimes for hours > until I finally > realized that if I turn the airport on my macbook off > and on, that I > am sometimes able to connect again. But even this doesn't > work all the > time. > > Since I am in charge of setting up this network, I have > artists who > are complaining that we need more access points. My > response is that > if you are standing next to an access point and you are not > able to > connect that it isn't the number of access points but > something else > which is the problem. Am I > correct? Am I wrong in assuming that > the > signal strength indicates that we are getting the signal > everywhere > but the response time and the lengthy hanging is another > issue > altogether? I know that some of the problems with > response time might > be explained by one artist uploading a large photo. > Even on my Fios > at home I sometimes have a slow response time when I am the > only > user. But I have used many wifi networks > in hotels and elsewhere > and don't ever remember having this hanging problem which > is only > corrected by turning off and on the wireless on my > computer. > > We are connected to a cable internet system which is > currently running > 16/2. We had assumed that there might be 50 users at one > time and were > assured that this would be sufficient. Do we need a second > line? > > THanks for any help you all can give me. > Cindy Brandt ************************************************************************* ** List info, subscription management, list rules, archives, privacy ** ** policy, calmness, a member map, and more at http://www.cguys.org/ ** *************************************************************************
