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Newbie Tomato User - Please Help!

Discussion in 'Tomato Firmware' started by MetsToWS, Mar 16, 2010.

  1. MetsToWS

    MetsToWS Addicted to LI Member

    Having a strange issue here I was hoping the gurus could help me with.

    I have had Linksys WRT54GL running perfectly for almost a year. I recently upgraded to 1.27 thinking it would solve my problems, they still persisted.

    For the last 3 weeks, I was running the Transmit Power setting at about 150 to boost the signal in certain parts of the house. Everything was working fine up until recently.

    The wireless bandwidth speed has suffered greatly. I have a 10MB/0.5MB connection up/down and it gets 1MB/0.5 now. I have tried lowering the TX power back down to 42 and then 28. I seem to get an improvement in speed at the beginning, but then it goes back to the 1MB/0.5 speeds.

    I have also tried changing the channels. I must also note that plugging in a cable directly into the router gives full bandwidth speed, so something must be wrong with the wireless.

    Please help this newbie! Thank you all. I am still a firm believer in Tomato!
  2. szfong

    szfong Network Guru Member

    1MB = 8Mb?? :)
  3. MetsToWS

    MetsToWS Addicted to LI Member

    Sorry -- All totals are Megabits, not Megabytes.

    I can't understand what's going on with my wireless...please help...

    It seems like when I change my wireless channel, it improves to normal speeds for the first run, but all subsequent runs are at the pitifully slow rate.
  4. szfong

    szfong Network Guru Member

    Try downgrading & then retest, better still plug another WRT54GL if you've got a spare. Possibly, lightning or power anomaly may have burnt/damaged the transceiver.
  5. MetsToWS

    MetsToWS Addicted to LI Member

    I wish I had another one of these to test... :)

    I upgraded to the latest beta and then switched around to a couple of modded Tomato roms, no dice, still the same speeds.

    So you think I fried it by increasing the transmission power? The router is plugged into a surge protector/battery backup, so I'm hoping lightning didn't cause it.

    Any other thoughts? I'm not sure if there's anything else I can do besides get another router, god knows I've spent enough time trying to track down the root cause.
  6. szfong

    szfong Network Guru Member

    Through experience, most people do NOT recommend running with increased power beyond 70 or so for long durations and without added cooling. It also depends on your environment eg, dust, humidity, heat, etc... Might consider replacing it.
  7. MetsToWS

    MetsToWS Addicted to LI Member

    Thanks for the responses thus far...

    ...guess I'll be looking for a new GL tonight.
  8. speedlever

    speedlever Network Guru Member

    I found this thread in a quest to solve my slow wireless file transfer problems. My internet access via the WLAN is normal. Only file transfers seem to be affected (or that I've noticed).

    I'm running a WRT54G/v3 with Tomato 1.27 firmware in G only. I had the power cranked to 240 and was seeing a 108 MB file (114,276,960 bytes) take 15:55.52 seconds to transfer over the WLAN. (119,661.7 Bps)

    Via ethernet, the same file took 00:12.26 sec (9,321,122.3 Bps).

    I dialed the power back to 60 and tried the same file again via the WLAN and saw it take 00:51.3 sec (2,227,621.0 Bps).

    Does this make any sense? Should I have rebooted the computers between runs to clear any cache? (I just copied and pasted the same file).
  9. bogderpirat

    bogderpirat Network Guru Member

    sure it does. noise ratio goes up when you put more than 100mW on the wireless chipset - it results in a "dirty" signal. there's a thread linked in the FAQ i believe that elaborates on that relationship. it's best to stay below that, as the range and throughput only decreases beyond about that value.
  10. speedlever

    speedlever Network Guru Member

  11. bogderpirat

    bogderpirat Network Guru Member

    good finds. i originally meant this one, but i'm just noticing now that there's only one paragraph mentioning it. still, wouldn't go beyond a hundred for some of those reasons.
  12. MetsToWS

    MetsToWS Addicted to LI Member

    Hey guys, I got a new WRT54GL, flashed over to tomato and the same problem exists.

    Excruciating slow and inconsistent speed tests wireless, but solid performance when plugged in directly to the router with an ethernet cable. I have tried switching channels but no luck.

    Are there any screenshots or info I can give you guys to help me debug the situation? Would attaching a new antenna do the trick?
  13. MetsToWS

    MetsToWS Addicted to LI Member

    Some more information:

    When testing a different machine from the same location, it seems to perform MUCH MUCH better, which leads me to believe that the wireless card on this machine has perhaps gone bad? I've never seen that happen to a wireless card before.
  14. Porter

    Porter LI Guru Member

  15. MetsToWS

    MetsToWS Addicted to LI Member

    Problem solved. It seems to have been the adapter.

    The funny this is that I was working without a problem for quite some time with that adapter and nothing was wrong until recently.

    Crossing my fingers, but I think changing the wireless adapter seems to have worked.
  16. Toastman

    Toastman Super Moderator Staff Member Member

    But, you see how easy it is for the "fried my router with 100mW" myths to take hold?

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