This topic https://community.bt.com/t5/Archive-Staging/DLM-Reset/m-p/2068677#M1201914 <P>Thanks for your input.</P><P>I've suspected its been a hardware issue used the Openreach ECI VDSL router had recently changed over to the&nbsp;zyxel vmg8924-b10a which has been better but DLM still doing its tricks. Previously had 79/20 out of it which is a real shame about the drop.&nbsp;</P> Wed, 08 Jul 2020 13:23:16 GMT h011094 2020-07-08T13:23:16Z DLM Reset https://community.bt.com/t5/Archive-Staging/DLM-Reset/m-p/2068671#M1201912 <P>Hey there,&nbsp;</P><P>&nbsp;</P><P>Hoping somebody can help me out with a DLM Reset if possible. Speeds have gradually been dropping since September last year and had some instability last few months leading to drop outs, pings have climbed but has not recovered.&nbsp;</P><P>Router stats and info from BTW included.&nbsp;</P><P>&nbsp;</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Screenshot 2020-07-08 at 14.03.51.jpg" style="width: 999px;"><img src="https://community.bt.com/t5/image/serverpage/image-id/66938iB1CA35E85C7348A8/image-size/large?v=v2&amp;px=999" role="button" title="Screenshot 2020-07-08 at 14.03.51.jpg" alt="Screenshot 2020-07-08 at 14.03.51.jpg" /></span><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Screenshot 2020-07-08 at 14.03.30.jpg" style="width: 999px;"><img src="https://community.bt.com/t5/image/serverpage/image-id/66939iB0E0233557BEF621/image-size/large?v=v2&amp;px=999" role="button" title="Screenshot 2020-07-08 at 14.03.30.jpg" alt="Screenshot 2020-07-08 at 14.03.30.jpg" /></span></P><DIV>&nbsp;</DIV><DIV>====================================================================================</DIV><DIV>&nbsp; &nbsp; VDSL Training Status: &nbsp; Showtime</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Mode: &nbsp; VDSL2 Annex B</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; VDSL Profile: &nbsp; Profile 17a</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; G.Vector: &nbsp; Disable</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Traffic Type: &nbsp; PTM Mode</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Link Uptime: &nbsp; 0 day: 0 hour: 46 minutes</DIV><DIV>====================================================================================</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp;VDSL Port Details &nbsp; &nbsp; &nbsp; Upstream &nbsp; &nbsp; &nbsp; &nbsp; Downstream</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Line Rate: &nbsp; &nbsp; 20.202 Mbps &nbsp; &nbsp; &nbsp; 63.522 Mbps</DIV><DIV>&nbsp; &nbsp; Actual Net Data Rate: &nbsp; &nbsp; 20.000 Mbps &nbsp; &nbsp; &nbsp; 63.404 Mbps</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Trellis Coding: &nbsp; &nbsp; &nbsp; &nbsp; ON &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;ON</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; SNR Margin: &nbsp; &nbsp; &nbsp; &nbsp;9.4 dB &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;7.7 dB</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Actual Delay: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;0 ms &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;9 ms</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Transmit Power: &nbsp; &nbsp; &nbsp; &nbsp;3.6 dBm &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 3.6 dBm</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Receive Power: &nbsp; &nbsp; &nbsp; -6.1 dBm &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;-2.6 dBm</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Actual INP: &nbsp; &nbsp; &nbsp; &nbsp;0.0 symbols &nbsp; &nbsp; &nbsp; 5.0 symbols</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp;Total Attenuation: &nbsp; &nbsp; &nbsp; &nbsp;0.0 dB &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;14.2 dB</DIV><DIV>Attainable Net Data Rate: &nbsp; &nbsp; 25.017 Mbps &nbsp; &nbsp; &nbsp; 92.077 Mbps</DIV><DIV>====================================================================================</DIV><DIV>&nbsp; VDSL Band Status &nbsp; &nbsp; &nbsp; &nbsp;U0 &nbsp; &nbsp; &nbsp;U1 &nbsp; &nbsp; &nbsp;U2 &nbsp; &nbsp; &nbsp;U3 &nbsp; &nbsp; &nbsp;U4 &nbsp; &nbsp; &nbsp;D1 &nbsp; &nbsp; &nbsp;D2 &nbsp; &nbsp; &nbsp;D3</DIV><DIV>&nbsp; Line Attenuation(dB): 0.5 16.0 26.6 &nbsp;N/A &nbsp;N/A 9.0 21.8 33.0</DIV><DIV>Signal Attenuation(dB): 0.4 15.8 26.6 &nbsp;N/A &nbsp;N/A 11.2 21.5 33.0</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; SNR Margin(dB): 11.3 10.4 9.0 &nbsp;N/A &nbsp;N/A 7.7 7.7 7.7</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;TX Power(dBm):-5.8-35.2 3.0 &nbsp;N/A &nbsp;N/A 8.2 7.5 7.3</DIV><DIV>====================================================================================</DIV><DIV>&nbsp;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; VDSL Counters</DIV><DIV>&nbsp;</DIV><DIV>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Downstream &nbsp; &nbsp; &nbsp; &nbsp;Upstream</DIV><DIV>Since Link time = 46 min 55 sec</DIV><DIV>FEC: 8124 2</DIV><DIV>CRC: 0 0</DIV><DIV>ES: 0 0</DIV><DIV>SES: 0 0</DIV><DIV>UAS: 0 0</DIV><DIV>LOS: 0 0</DIV><DIV>LOF: 0 0</DIV><DIV>LOM: 0 0</DIV><DIV>Latest 15 minutes time = 2 min 23 sec</DIV><DIV>FEC: 689 1</DIV><DIV>CRC: 0 0</DIV><DIV>ES: 0 0</DIV><DIV>SES: 0 0</DIV><DIV>UAS: 0 0</DIV><DIV>LOS: 0 0</DIV><DIV>LOF: 0 0</DIV><DIV>LOM: 0 0</DIV><DIV>Previous 15 minutes time = 15 min 0 sec</DIV><DIV>FEC: 509 0</DIV><DIV>CRC: 0 0</DIV><DIV>ES: 0 0</DIV><DIV>SES: 0 0</DIV><DIV>UAS: 0 0</DIV><DIV>LOS: 0 0</DIV><DIV>LOF: 0 0</DIV><DIV>LOM: 0 0</DIV><DIV>Latest 1 day time = 47 min 23 sec</DIV><DIV>FEC: 8124 2</DIV><DIV>CRC: 0 0</DIV><DIV>ES: 0 0</DIV><DIV>SES: 0 0</DIV><DIV>UAS: 27 27</DIV><DIV>LOS: 0 0</DIV><DIV>LOF: 0 0</DIV><DIV>LOM: 0 0</DIV><DIV>Previous 1 day time = 0 sec</DIV><DIV>FEC: 0 0</DIV><DIV>CRC: 0 0</DIV><DIV>ES: 0 0</DIV><DIV>SES: 0 0</DIV><DIV>UAS: 0 0</DIV><DIV>LOS: 0 0</DIV><DIV>LOF: 0 0</DIV><DIV>LOM: 0 0</DIV><DIV>Total time = 47 min 23 sec</DIV><DIV>FEC: 8124 2</DIV><DIV>CRC: 0 0</DIV><DIV>ES: 0 0</DIV><DIV>SES: 0 0</DIV><DIV>UAS: 27 27</DIV><DIV>LOS: 0 0</DIV><DIV>LOF: 0 0</DIV><DIV>LOM: 0 0</DIV><DIV>====================================================================================</DIV><P>&nbsp;</P> Wed, 08 Jul 2020 13:06:18 GMT https://community.bt.com/t5/Archive-Staging/DLM-Reset/m-p/2068671#M1201912 h011094 2020-07-08T13:06:18Z Re: DLM Reset https://community.bt.com/t5/Archive-Staging/DLM-Reset/m-p/2068672#M1201913 <P>Until the instability is fixed there is absolutely no point in a DLM reset as DLM will just lower your speed again.</P> Wed, 08 Jul 2020 13:15:29 GMT https://community.bt.com/t5/Archive-Staging/DLM-Reset/m-p/2068672#M1201913 licquorice 2020-07-08T13:15:29Z Re: DLM Reset https://community.bt.com/t5/Archive-Staging/DLM-Reset/m-p/2068677#M1201914 <P>Thanks for your input.</P><P>I've suspected its been a hardware issue used the Openreach ECI VDSL router had recently changed over to the&nbsp;zyxel vmg8924-b10a which has been better but DLM still doing its tricks. Previously had 79/20 out of it which is a real shame about the drop.&nbsp;</P> Wed, 08 Jul 2020 13:23:16 GMT https://community.bt.com/t5/Archive-Staging/DLM-Reset/m-p/2068677#M1201914 h011094 2020-07-08T13:23:16Z Re: DLM Reset https://community.bt.com/t5/Archive-Staging/DLM-Reset/m-p/2072162#M1201915 <P>Just wanted too post an update. Issue has been caused by a bridge tap which was not noticed by the engineer that came to install the connection first time around.&nbsp;</P><P>&nbsp;</P><P>Bridge Tap has been removed so a DLM reset would now be advantageous&nbsp;</P> Fri, 17 Jul 2020 13:17:55 GMT https://community.bt.com/t5/Archive-Staging/DLM-Reset/m-p/2072162#M1201915 h011094 2020-07-17T13:17:55Z Re: DLM Reset https://community.bt.com/t5/Archive-Staging/DLM-Reset/m-p/2072183#M1201916 <P>Once DLM sees the line as stable it should automatically reset itself. A DLM reset cannot be performed on VDSL the same way as ADSL.</P> Fri, 17 Jul 2020 14:11:28 GMT https://community.bt.com/t5/Archive-Staging/DLM-Reset/m-p/2072183#M1201916 pippincp 2020-07-17T14:11:28Z