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2820Vn Firmware v3.3.4.1 available on draytek.com

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11 Oct 2010 20:37 #64210 by mykal
That makes two of us. I must try and get 1500 MTU, maybe if i telnet in and do it that way ill get it but its raid time in WOW so must go do my duty.

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12 Oct 2010 08:55 #64214 by howard simpson
Replied by howard simpson on topic 2820Vn Firmware v3.3.4.1 available on draytek.com
You dont need to telnet any more to change the MTU its now on the WEB interface on the WAN internet access screen for each WAN. I just checked mine and it was set at 1442 so hence I did not see any speed reduction.

Howard

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12 Oct 2010 09:07 #64215 by bradley porter
Replied by bradley porter on topic 2820Vn Firmware v3.3.4.1 available on draytek.com

Howard Simpson wrote: I just checked mine and it was set at 1442 so hence I did not see any speed reduction.


Excellent - so thats why maybe yours was OK after the upgrade. You already had a lower MTU.

I am not a brainbox in this area but can anyone work out why or how this bug is occurring and its relation to the MTU setting? Its very odd.

Kind regards,
Bradley Porter

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12 Oct 2010 12:06 #64218 by njh
The MTU for ADSL should never be higher than 1492. 1500 is for cable/ethernet. It can vary from ISP to ISP and for all sorts of reasons. If you want to check the optimum size, have a look here .

I have a feeling it sometimes needs to be even lower than that for some web sites but I am not sure.

2900Gi/v2.5.6; 2900/v2.5.6

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12 Oct 2010 12:21 #64219 by rothers
The low values folk are having to use seem more like MSS values than MTU to me.

Haven't Draytek traditionally used MSS for the router setting. Perhaps they've suddenly changed to MTU with the latest firmware.

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13 Oct 2010 15:51 #64240 by damienf
I just did an upgrade from 3.3.3 to 3.3.4.1 using the reset image. MTU is set to 1442 by default (max is shown as 1492). I didn't notice any reduction in ADSL speed (so far)

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