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Thread: Router/Modem all of a sudden giving very slow speeds

  1. #1
    Junior Member
    Join Date
    Apr 2007
    Posts
    2

    Unhappy Router/Modem all of a sudden giving very slow speeds

    Using Windows XP, Linksys WRT54G v5 with recently upgraded firmware, cable internet, going wireless.

    I'm playing Vanguard and over the last few days, my internet connection has dramatically reduced to an almost unplayable level. I connected with ethernet cable for a few months and then moved my PC and switched to wireless. Didn't notice a big performance issue until about a month later. Like a lightswitch, I was all of a suddent sitting at a 'red' connection bar and my 'roundtrip' speed went from a max of 200-300 to an average of 1100ish ms. Every few seconds, packets sent spikes up loss. I receive no lag at all for inbound data but when I do something (cast a spell or whatever) there's like a 1.5 second delay. I checked my cable modem logs and though I don't remember the exact date of the change in performance, 3/29/07 sounds pretty close.


    1970-01-01 00:00:12 3-Critical D003.0 DHCP WARNING - Non-critical field invalid in response.
    2007-03-29 06:07:29 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:07:28 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:07:23 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:07:22 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:07:16 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:07:16 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:07:12 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:07:12 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:57 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:56 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:46 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:44 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:42 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:42 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:41 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:41 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:41 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:40 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:40 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:39 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:39 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:39 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:39 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:39 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:39 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:38 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:38 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:38 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:38 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:38 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:37 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:37 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:37 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:37 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:36 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:36 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:36 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:36 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:36 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:35 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:35 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:34 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:34 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:33 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:33 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:32 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:32 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:31 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:31 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:30 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:30 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:29 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:29 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:27 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:26 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:26 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:25 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:25 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:24 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:23 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:23 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:22 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:22 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:22 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:21 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:21 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:17 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:17 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:06:02 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:06:01 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:05:50 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:05:48 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:05:48 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:05:48 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:05:47 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:05:47 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:05:46 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:05:45 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:05:45 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:05:45 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:05:45 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:05:42 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:05:42 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:05:41 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:05:41 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:05:38 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:05:38 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:05:37 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:05:37 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:05:37 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:05:36 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:05:35 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:05:35 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:05:34 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:05:34 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:05:33 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:05:33 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    2007-03-29 06:05:31 3-Critical T001.0 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
    2007-03-29 06:05:31 3-Critical T002.0 SYNC Timing Synchronization failure - Failed to acquire FEC framing
    Event Log has reached maximum size. Older log entries are lost.


    Sorry for such a long log post but that sure seems like a LOT of "critical errors" to happen over a course of two minutes. Your guess is as good as mine as to when that last one happened because it appears that something was reset in the modem (or it traveled 37 years in the past though the speeds are comparable.)

    What's unusual is last week I did a bunch of tweaks and things to my router (assumed it was the problem) including upgrading firmware and trying out a bunch of different settings and it worked fine for about 24 hours and then switched back again to the horrible performance. A day later, I messed around with it again and it worked for about 5 days and then tonight, out of no where without any warning, changes, etc. it reverted back to the horrible performance

    Anyone have any ideas? I'm totally stumped

  2. #2
    Second Most EVIL YARDofSTUF's Avatar
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    That 1970 log is common when the modem resets until it gets the datea nd time from your ISP.

    What are your up and down stream power levels.

  3. #3
    Junior Member
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    I'm at work right now so I can't get you the exact numbers but I do know that I checked the upstream and downstream levels and they were right in the middle of the recommended ranges that I saw posted.

    I'm trying to figure our where the problem is at. It's either very bad and laggy or it's working just fine. There's not a lot of gray area. Right now I know for sure that's it's not an individual PC since the problem is consistent with each PC/Laptop. I know it's not the location of the router or computers because it was working perfectly for about a month. I'm trying figure out what I can do to make it work, whether it's buying a bunch of ethernet cords and boosters to take it off wireless or a stronger antenna or something. But if my modem and/or my router have crapped out, those will likely be useless purchases.

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