Help! E3000 with terrible RX on 2.4Ghz.

Discussion in 'Tomato Firmware' started by Roy2001, Apr 11, 2011.

  1. Roy2001

    Roy2001 Addicted to LI Member

    I just bought a refurbished E3000 (I had good experience with Linksys refurbed products). I flashed it to latest Tomato firmware, and fired it up as a wireless bridge. However, connection is very unstable. Then I restore it to default mode, sit next to laptop, and let laptop connect to it.

    In the “Device list†page, I can see laptop. In “TX/RX Rate†tab, the connection speed is 300/300. Then I disabled the 5Ghz signal and let laptop connect through 2.4Ghz. The initial speed is 144/130, which is OK, but then it becomes 144/58, sometimes 144/7, 144/2 or even 144/- occasionally. The RX is terrible that effectively I don’t have wireless connection. At this time, the router is not connected to a modem at all.

    I flashed with DD-WRT and then re-flashed it to Tomato again. I am still having the same problem. I wonder if I am not lucky and get a bad hardware? Any suggestion? Shall I open to see if antenna was loose?

  2. TexasFlood

    TexasFlood Network Guru Member


    My "Device List" TX/RX numbers do seem to float around if I sit and watch them, not sure why.

    But if I run a bandwidth test over the connection, all seems well so I didn't worry about it.

    Almost seems like it's showing the rate of actual data moving over the rather than the connection rate. For example just now the connection to an upstairs PC was sitting at -/162 in the device list. Nobody was using it, was just sitting there idle. I opened up a remote desktop session to it which worked fine, plenty fast, and right away the connection TX/RX status changed to 162/216. So I'm not sure it's really a problem but would love to hear more about what these numbers mean as I have noticed the widely varying values.
  3. jsmiddleton4

    jsmiddleton4 Network Guru Member

    Mine bounces all over the place as well.

    What are your settings in Basic and in wireless?

    Why a refurb?
  4. TexasFlood

    TexasFlood Network Guru Member

    I did this as well. In my case cause it was $69.99 shipped, I'm cheap, and my experience with Cisco refurbs has so far been excellent. It's a risk I guess but one my cheap self was willing to take. So far it seems to be working fine. I shouldn't jinx myself, now it's going to blow up, just watch, :sad:
  5. jsmiddleton4

    jsmiddleton4 Network Guru Member

    Also do you have any wireless security turned on/enabled?
  6. TexasFlood

    TexasFlood Network Guru Member

    WPA Personal (PSK) + AES
  7. jsmiddleton4

    jsmiddleton4 Network Guru Member

    Not you, Roy.... :)

    He seems to be having issues.
  8. TexasFlood

    TexasFlood Network Guru Member

    Oh, hah, sorry. Roy2001, are you actually having connection issues or just worried about the TX/RX numbers listed in the “Device list†page?
  9. Roy2001

    Roy2001 Addicted to LI Member

    Hi, sorry did not login due to tax return :)

    No I have nothing enabled, no security setup. My current setup is N16 with a main router with tomato which is very robust. I have a WRT320N (refurbished and excelent) connected to N16 as wireless bridge sitting next to my HTPC. It is very stable I can stream netflix no problem. Now I want another router so I can have stable connection in another bedroom. My house is fairely large and main router is in a corner room at 2nd floor and signal is not very good where I want to place the routers.

    I tried to let each router link to 2 others. So in basic setup, I have N16 link with WRT320N and E3000, E3000 link with WRT320N and N16, etc. Then I noticed I lost connection with both WRT320N and E3000. I logged into N16 and find the signal is more like 144/7 or 144/2.

    I have to remove the E3000 from the setup, the N16/WRT320N pair works fine again. I set E3000 to default and ONLY disabled 5Ghz signal. My TX connection to E3000 is always 144, while RX is between 2 to 58.

    Based on your suggestions, I would try to use E3000 as the main router, and test the signal strength.

    But, one question, for my setup (N16/WRT320N/E3000), how would you guys recommend to connect them together? My N16 is really robust with D-Link ANT24-0700 attached to it. So I would like to use it as the main router at 2nd floor.

    Thanks a lot guys.
  10. TexasFlood

    TexasFlood Network Guru Member

    How are you linking them now? I think he options really are WDS or a wireless Ethernet bridge. I used to use WDS. Once I moved to a mixed environment with an RT-N16 along with older hardware like a WRT54G v2 level, WDS became problematic. The WDS link was still stable once established but if one of the routers got power cycled or rebooted many times the link would not re-establish. If memory serves, the primary router, my RT-N16 also had to be rebooted after the "temote" linked router to bring the link back. So I put in some scripts to try and do that. It was a PITA so ended up going to a wireless Ethernet bridge for my remotes since all I need from them is wired ports in places that don't have existing wiring and don't need any filtering etc.
  11. Roy2001

    Roy2001 Addicted to LI Member

    Hi, I am setting to WDS+AP, link with each other with MAC address. Yes you are right that once one router rebooted, I have to click save again in basic setup part from main router, reboot main router works too. But I only need to do it maybe once, a year.
  12. TexasFlood

    TexasFlood Network Guru Member

    I successfully ran WDS for a long time and was happy with it. I got a bit frustrated and went to WET for my remote routers. I'd say if WDS is working for you stick with it. I bailed on it due to the issues I was having but might try going back to it as some point if I have the time to sort out the issues.
  13. Roy2001

    Roy2001 Addicted to LI Member

    My N16 + WRT320N works fine as WDS, very stable. I want to add an E3000 as another AP, but it makes WDS stop working.
  14. jsmiddleton4

    jsmiddleton4 Network Guru Member

    Done both WDS and WET here with 2 E3000's. Working fine once you figure out some of the minor details, like in WET mode to put the slave router's MAC/IP in the static dhcp list IF you are going to use ARP.

    Also had issues when I tried to have 2.4ghz channel at 20hz and the 5 ghz channel at 40. Both need to be at 40.

    I have multiple SSID's and passwords, WPA AES, for each channel of the dual channel as well.
  15. jsmiddleton4

    jsmiddleton4 Network Guru Member


    Because the E3000's are simultaneous dual channel I use the 5ghz to speak router to router and the 2.4ghz for wireless clients to connect. We don't have any 5ghz clients anyway.
  16. Roy2001

    Roy2001 Addicted to LI Member

    I tried again with my refurbed E3000, it works fine now, with lates Tomato firmware. Sometime I see speed as 144/7 but it would bump back to 144/144. I tried to copy the data over and don't have any problem.

    Thanks for all help!
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