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Motorolla SB5120 Gaming Lag

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Hello, I was noticing increased ping & packet loss (lag spurts) while playing world of warcraft (only online game I play atm) & started searching for an answer. I had just upgraded my optimum online package to get Voip & the tech had replaced my old Motorolla surfboard (no voip port) with the SB5120. I did not play WoW for a couple days after I got the new SB5120 & figured the lag was something game/server related. After talking to a friend in the area who also has optimum online & plays on the same server as me, was not experiencing these problems I than started to think what it could be & only thing that has changed on my network/cpu is the SB5120. After doing some searching I found a post "I would go with the SB5100 because the SB5120 gives high pings, packet loss, and if you play on line games it gives you lag. Smile " & wanted to ask what others experience with the SB5120 was. I tried finding other users/ forum post with similar issues but had no luck. Thanks for your time/help in attempt to return to normal gaming :)

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Would you mind posting where they said why it would cause higher pings.. The only reason that I can think of would be that the modem itself is setting aside a certain % of bandwidth in reserve for your VoIP calls.  Are you placing a router behind the modem or are you directly connecting it to the computer?

BTW welcome to the forum!

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Hello & thanx for the quick response. I had found that quote from a post here http://www.testmy.net/t-6135.msg58727#msg58727 . I had sent him a pm to ask what his personal experience with it was since I had no luck finding much other info on it. I am currently using the SB5120 behind a Buffalo WHR-G54S (same router I had with old modem). I will try directly connecting to the modem & see if that helps, I presumed it had nothing to do with the router since it worked fine with the old cable modem & was going off of process of elimination. I will post back if removing the router helps, Thanx again

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I had no luck with removing the router, the lag still exist. I had run a trace on route with 100 samples on us.logon.worldofwarcraft.com while gaming & experiencing the lag spurts. I see there is packet loss but dont really understand enuff to know how bad this is & if it is the culprit or the modem's fault. Others are seem to experiencing simliar issues but to more extreme than me. http://forums.worldofwarcraft.com/thread.html?topicId=114921852&sid=1&pageNo=1  Here is a pic of my trace route if u could add some insight on if u think its the modem or  wow's server fault. I dont have another modem to test atm :(


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If you are seeing packet loss then there is nothing that you can do.. Unless you are able to track it down to your ISP's network.  My guess is that the packet loss is occurring on the backbone providor's network.  And you can't really call up AT&T and tell them that you are loosing packets on their network. 

I trace routed the server and here is what I came up with:

Tracing route to 12-129-224-110.attens.net []

over a maximum of 30 hops:

  1    <1 ms    <1 ms    <1 ms  DD-WRT []

  2    13 ms    7 ms    28 ms  74-132-192-1.dhcp.insightbb.com []

  3    8 ms    28 ms    11 ms  74-132-0-137.dhcp.insightbb.com []

  4    10 ms    9 ms    9 ms  74-132-0-77.dhcp.insightbb.com []

  5    11 ms    8 ms    11 ms

  6    *        *        *    Request timed out.

  7    19 ms    17 ms    14 ms  ae-14-51.car4.Chicago1.Level3.net []

  8    26 ms    20 ms    16 ms  ggr2-p3110.cgcil.ip.att.net []

  9    78 ms    88 ms    75 ms  tbr2.cgcil.ip.att.net []

10    96 ms    85 ms    77 ms  tbr2.sl9mo.ip.att.net []

11    79 ms    75 ms    79 ms  tbr2.la2ca.ip.att.net []

12    75 ms    71 ms    86 ms

13    75 ms    76 ms    76 ms

14    75 ms    82 ms    78 ms  mdf001c7613r0003-gig-10-1.lax1.attens.net [12.12


My response rates are a little better than yours.. but that could be the time of day.  I have seen some posts that have, on other forums, that have said the same type of thing about increased lag..

You might want to call Optimum and ask if you can go back to the SB5100 and implement a router based solution for VoIP.. Ask them about this.. I was looking through the specs on motorola's site and it doesn't seem to be any difference between the two..  You could also ask to have your line tested to see if there is something wrong with your line.  It is possible that the newer modem has better components and is more sensitive to signal changes and there for is running slower.

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