Hi everyone, for years I've looked to the geekzone community for tips and help so thanks to all who contribute here. I'm still a noob at posting on here so forgive me if it's too long or not up to standard ;-)I recently switched from Slingshot naked ADSL to Slingshot VDSL with homeline, as they still don't offer a Naked option for VDSL. I'm in Dunedin, about 4km from the CBD and located ~550m from the Ravensbourne exchange as the crow flies. A year prior to switching to VDSL, I rewired my home to optimise my connection speeds by running a cat 5e cable from the demarc point in my roof cavity directly to my modem, with no other devices on the line. I have no central filter/splitter as I only have the modem on the line.I bridged the Energy Imports VB104W modem Slingshot provides and connected that to my Netgear Nighthawk to do all the LAN routing and PPPoE connection, but the Energy Imports modem doesn't sync at high enough speeds; after trawling the web and these forums I decided to get a Zyxel P870H-51a v2 from Acquire to get the best speed and most stable connection. Upon connecting and configuring it, I get no DSL light, and I cannot get the modem to sync with the DSLAM at all. From the other side, Slingshot reports that all they can see is 'CPE silent'. I ran through the settings to check they matched the Energy Imports modem (VLAN ID = 10, Priority = 0) and they all matched up. I contacted Campbell Technologies (the suppliers/tech support for the modem) on advice from Acquire to verify my settings were correct, and even tried setting the modem into routing (PPPoE) mode to see if it could connect at all. No luck. Campbell then shipped out a replacement, thinking the first was faulty. The new one does the exact same thing. Occasionally the DSL light will begin flashing after some time, but it never goes solid green and it is generally off completely. Campbell are beside themselves, can't explain it and are discussing giving me a refund, but I want the better sync speeds - I should be able to get them If I reconnect the Energy Imports modem, it syncs up just fine within a minute.Upon switching to VDSL (2-3 weeks ago), the Chorus tech advised me not to install the master filter on the day of install, as I didn't need it (he gave me one anyway in case I decide to use it someday); while technically I now have a POTS service, I still have no devices on the line other than the modem. He plugged in his technicolor modem, which synced up easily at 21Mbps down / 10 Mbps up. The Energy Imports VB104W modem Slingshot provided to me syncs up easily as well, but only at 16/10 - and it reports the upstream attenuation as 102.3db (14db downstream). I had a Chorus tech come out and recheck the line - he relocated the line on the pole so that it wasn't running parallel to my incoming AC power cable, but doing so didn't change anything. This time he brought along a Huawei modem and again synced at 21/10. We also tested his Huawei modem right at the pole to see if internal or buried wiring was causing any issues; it decreased my attenuation by 1dB and synced at 22/10 - not much difference really. The Chorus tech also gave me the line stats as reported from the DSLAM, which pretty much matched his Huawei modem's stats:Line standard VDSL2Downstream line rate (kbiUs) 21597Upstream line rate (kbiUs) 9984Downstream SNR (dB) 12.2Upstream SNR (dB) 11.8Downstream line attenuation (dB) 19.3Upstream line attenuation (dB) 40.7Downstream output power (dBmV) 13.5Upstream output power (dBmV) 7.8Downstream CRC 1Upstream CRC 0Downstream FEC 0Upstream FEC 0Here's my Energy Imports VB104W modem stats: Status: Up Mode: ITU G.993.2(VDSL2) Traffic Type: PTM Line Coding: Enable Up Time: 7018 Downstream Upstream SNR Margin (0.1dB): 12.2 11.9 Attenuation (0.1dB): 13.0 102.3 Output Power (dBm): 8.0 8.2 Attainable Rate (Kbps): -2145785176 0 Rate (Kbps): 16220 10151 D (interleave depth): 1 1 Delay (msec): 0 0 As I said, the Energy Imports modem consistently reports some strange figures.Here is my line info from the DSLAM, from a screencap of the Chorus tech's PC when we were testing the line at the pole:Data Operational InformationProvider 53269742DSLAM Make / Model ALCATEL 7302DSLAM Port RSB-DSLAM-05:1-1-3-45PSTN Operational InformationProvider 53269742E><change Code RSBE><change Type 61ESwitch Name RAVENSBOURNE 2Switch Type NEAX 61E-G9-RLULSD Results for Line: RSB-DSLAM-05:1- 1- 3 -45Inspection ID: 5251738Line Configuration CPE Type: UnknownDSL Type: non.shdsl.opermode vdsl2.g9932.profile.8b, line.type.pots, latency.fastLine ID: RSB-DSLAM-05:1-1-3-45User Label: 104364541-RSB-DSLAM-05 -1-005-45Spectrum Profile Name: EUBAV-VDSL2-1Service Profile Name: EUBAV-FF-FSFSService Template Name: VDSL2_8b_HSICPE InfoNodem Vendor ID: B5004244434DOOOOSystem Vendor ID: B5004244434DOOOOSystem Vendor Model: 4132707636463033376700000000000000Serial Number:Line Operational InfoService Stability: STABLEline Status: DownDiagnosis ResultProblem:location: xDSLDescription: CONNECTION_ STATUS -CPE_SILENT-parameter.line.failure-LOSImpact: no.connectivity.impactConfidence: 100Parameterlqd.parameter.actual.bitrate 9984 21600lqd.parameter.attainable.bitrateqd. parameter.rel.capacity .occupationlqd.parameter.attenuationlqd.parameter.loop.attenuationlqd.parameter.noise.marginlqd.parameter.actual.psdlqd.parameter.powerlqd.atm.traffic.rate.title NaN NaNTL;DR VDSL is up and running at my place, it works fine with three different brands of modem, but two different brand-new Zyxels won't even give me a solid DSL light.Can anyone give me an idea as to what to do next? How could three different VDSL modems sync up perfectly fine, but the Zyxel can't even be seen by the DSLAM? Is there some basic setting I didn't configure correctly?I will happily provide more information, just let me know what will help.Thanks for all your contributions.Rob
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