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SRX Recommendations

Discussion in 'Cisco/Linksys Wireless Routers' started by chugger, Jan 22, 2006.

  1. chugger

    chugger Network Guru Member

    Hey guys, new around here. Have a question.

    I'm interested in buying one of the new SRX wireless routers. I noticed there is the SRX, SRX200, & SRX400. SRX=4x faster, SRX200=6x faster, SRX400=8x faster (or so I was told)

    I have been reading mixed reviews all morning on each of these, and cannot make a decision. I have a 1600sq foot home and could use some nice range, but dont wanna spend 150 bucks either.

    Which one of these products is stable, and works great without resets, and provides good functionality? Thanks :D
     
  2. howardp6

    howardp6 Network Guru Member

    The SRX is the most stable, allt problems have been resolved, but it is older technology and may not be available. It is suppose to be faster than the SRX200.

    There were problems with the SRX200, but is is the slowest and was introduced to compete on price point. SRX 200 problems were supose to be fixed with the latest firmware update. You can get it on sale for about $100 with rebates.

    The SRX400 is the latest and the fastest , but some people have reported problems, but the problems may be caused by the wireless NIC , interference and/or the presence of 802.11B clients. I would follow the threads to see if any of the problems are resolved. You may have to go through several firmware iterations until if becomes same.

    None of the SRX versions may be able to be upgraded to the 802.11N IEEE standard, when adapted and you may be purchasing a deadend product in terms of operating with other manufacturers products.

    If you have a notebook, I would go with the SRX400 since a SRX400 card is available, and any ot the problems with it should be resolved with newer updates If you have a desktop, there is no SRX400 card, only the WMP54GX, so I would go with the SRX200 or SRX devices, if you can get them. There are no USB SRX adapters available.
     
  3. Chuck_IV

    Chuck_IV Network Guru Member

    Right now, there is an issue with wireless QOS and SPI on the SX200's and SX400(not sure if this affects the SX V2, which is not the SX200). I have the SX400 and in order for Vonage to work for me, I have to disable SPI(ie. the firewall). If I do that, the SX400 works like a charm, however I am not running things like and XBox or other streaming media device, that would require Wireless QOS. The security risk of not running SPI is minimal because of the inherent security that running NAT offers. You should still be adequetly protected.

    FYI, this SPI issue is not exclusive to Linksys, as the Netgear WPNT834(Rangemax 240 only, the original rangemax WPN824 doesn't have this issue) and the Belkin equivolent, all suffer the EXACT same issue.
     
  4. chugger

    chugger Network Guru Member

    Ok so, either way, I should hold off until the issues are fixed or just buy it and not worry about QOS and SPI. Technically I dont need QOS at this point in time because I dont have a xbox live, nor do I stream anything from my home. I know there are other applications where you want QOS, but I dont see that happening with me and what I do. Yes I want an advanced network, and yes I am setting one up in my new home, but I can deal with it for now.

    I dont even need the latest greatest. I have a dell laptop that probably doesnt even have srx nic in it. I just want something better than my netgear g wireless so I can go further in my new home.

    I also hope the routing functionalitys of the srx models are good, in that they dont die off, need to be reset, etc. Right now I run a windows 2003 box with routing and remote access. Thats my "router"
     
  5. Chuck_IV

    Chuck_IV Network Guru Member

    Just to clarify my last statement, wired QOS on the SX400 works fine, it's the wireless QOS(802.11e) that doesn't work right. The problem with the SPI is that with things like Vonage, it thinks it's a DPS attack and starts dropping packets on purpose(you can watch it happen in the DOS log).

    The reason I am sticking with the SX400 is it's range. The range is phenomenal on this router, even without using the complimentary SX400 card. At the other end of my house, with my WRT54GS, I could barely pull a 20% signal(ie. very poor). Even with the Netgear RangeMax(WPN824, not the 240) I was still getting poor, at best. However with the SX400, with my built in network card(broadcom "G") I am pulling an almost 60% signal and then some, resulting in a "Very GOOD" from Windows networking.

    Like you, I don't do any media streaming or have an XBox right now so that's not a big deal. I do have Vonage tho and the SPI issue does bother me but since turning it off fixes the issue, it's good for now(securitywise with SPI off, the inherent security of NAT should be adaquet protection for now).

    Your best bet is try try them out and see which you like. Just make sure the store you get it from has a goot return policy.
     
  6. chugger

    chugger Network Guru Member

    But I need SRX technology NICS inside my laptop to see any benefit, correct?
     
  7. Mercenary

    Mercenary Network Guru Member

    dont forget these SRX routers are pre-n devices which means when the standard is finally agreed upon they may end up becoming propriety devices.

    I was intrested in them and their speed/range claims but until they follow the standard (instead of trying to make their own) ill hang fire.

    youve got netgears MIMO and rangemax also in the mix.
     
  8. drick

    drick Network Guru Member

    i'd go for it, i just got mine and like it. the only problem i have is that you can't add additional high gain antennae. the range is REALLy good, and the speeds are better than my wap54g's as well
     
  9. Chuck_IV

    Chuck_IV Network Guru Member

    Yes and no. To see the increased speed (ie. 108 for the SX and SX200 and 240 for the SX400) you need the SRX NICS. They also help with the range too, however, even with my internal "G" card in my laptop, I'm seeing roughly a 15 point signal strength increase. Using my internal "G" nic, in my laptop, with the WRT54GS I would get -75db signal at the far end of my house. With the new WRT54GX4, I'm seeing from -59db to -62db signal(lower is better) which is a pretty big increase in signal strength, for just swapping routers.

    I'd love to sit around and wait for the new "N" standard, the problem is they have been dragging their feet on it for a couple years now. For the last 2 years it's been, "just wait for the "N" standard later this year", then nothing. I was tired of waiting.
     
  10. marca56

    marca56 Network Guru Member

    cheat sheet:

    SRX = Gen2 Airgo solution in 2x3 antenna configuration... very good a/b/g performance as it uses 2 transmit and 3 recieve antennas.

    SRX200 = Gen3 Airgo solutions using 1x2 antenna configuration... very good b/g performance as it uses 1 transmit and 2 recieve antennas.

    SRX400 = Gen3 Airgo solutions using 2x3 antenna configuration... the best current MIMO implementation available. If you use an SRX400 Cardbus adapter, you will see 240Mbs link rates, and can achieve 120Mbs TCP/IP throughput.

    notes:

    It is important to note that you will see great improvement in range even if you only have a client adapter or an Airgo-based AP. This is on the order of 30% improvement in a single-ended configuration.

    Do not be fooled by other chipset vendors' claims-- MIMO is much different than beamforming. MIMO takes advantage of multipath reflections and does transmit and recieve multiple data streams and standard antenna or beamforming do not. In fact, multipath interference and reflection hurt the range. Even in the "other" chipsets, channel bonding gives better data rates for only one stream.

    Another point is that NO CURRENT SOLUTION, regardless of the marketing claims from chip vendors is or will be software upgradeable to "n". The proposed draft will have revisions making some mandatory items optional, some optional items mandatory, and probably add new items for both optional and mandatory compliance. The most likely event horizon is a completed spec sometime in 1Q07, but some vendors will be ready with chipsets that will be software upgradeable to "n" before that.

    If you buy SRX or another solution now it's life expectancy is probably 15-24 months before "n" products appear on retail shelves. All the "n" products based on a particular vendor will likely be backwards compatible to their current shipping products.

    So take a deep breath-- jump into the pool. SRX or Belkin or Netgear Rangemax 240 are all fine product lines and WiFi certified for b/g and some of them "a". You should have no issues (beyond the bugs in QoS, etc.) with compatibility or performance for SRX and the like.

    marc.
     
  11. odessit

    odessit Network Guru Member

    I have 2100 sq ft house, plus basement. And my wrt54gs covers entire house and even front and back yard pretty well:)
     
  12. Chuck_IV

    Chuck_IV Network Guru Member

    **Caution, rambling ahead 8O ***

    There are a lot of variables involved when trying to deterine what will and won't work for someone. I only have a 1700sq ft house but I cannot centrally locate my router. It is at one end of the house. The signal has a tough time getting from there, up one floor, to the opposite end of my house.

    In going thru now 3 different routers(WRT54GS, Netgear WPN824, and now the WRT54GX4), trying to find one that works for me, I noticed that all 3 routers worked fine if you could draw a horizontal or vertical line between the router and the client. However, if the path is diagonal between the 2 points, the signal has a tough time reaching it's destination and that's what had been biting me, with my WRT54GS. Sure a diagonal path probably has more obstacles, but I also visualize it as a circle inside of a square, where the square is my house and the circle is the signal from my original WRT54GS router(router being in the middle of the circle). Directly left/right/up/down there is a good signal, but all four corners are left either without a signal or a very weak signal.

    The only one of those 3 routers that has made a significant difference in getting the signal to those "corners" is the WRT54GX4. With the router having to be at one end of the house, the WRT54GS just couldn't cut it and the Netgear WPN824 did an ok job but it fluctuated way too much. I'd go from 108mpbs downto 24mpbs. With the WRT54GX4, I'm locked in at 240, with no throughput fluctuation.

    /rambling off

    Just a note this is all from personal observation and nothing has anything to do with scientific facts :)
     
  13. r0bt

    r0bt Guest

    I have a wrt54gx2 and wrt55ag,
    and need to replace the antennas

    The antennas have a very small connector on the
    end of a small (coax?) cable

    Anyone know what type connector that is ????
    Appears to be the same on both
     
  14. ramnam

    ramnam Network Guru Member

    I just got SRX400 and i am running into lot of problem after upgrading to beta firmware 1.00.12 my wireless keeps droping connection. Qos and firewall both are disabled. However firmware 1.00.12 fixed my skype issue.
     
  15. howardp6

    howardp6 Network Guru Member

    Can you tell me were I can get the 1.0.12 beta. I would like to install it on my SRX400 and play with the setting. The SRX400 uses adaptive channel bonding any may not be friendly to nearby networks. I believe it uses the same technology as the NETGEAR RangeMax 240 Wireless Router (WPNT834),w hci was reviewed at TomNetworking. http://www.tomsnetworking.com/.
     
  16. ramnam

    ramnam Network Guru Member

    Linksys is slow on firmware for SRX400 i am using 1.00.12 and router goes out once in a while and i have to hard restart it every time :(... They need to release a stable firmware fast.

    You can the beta firmware via chat support or you need to call them up... they will email it to you. :drinking: = linksys firmware developers
     

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