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Review: SMART WIND Vertic...
Forum: Alternative Power - Solar, Wind & Hydro
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5 hours ago
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Hyper-V Generation 2 VM -...
Forum: Virtualisation (Hyper-V and VMware)
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13-12-2018, 03:42 PM
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Windows 10 Sleep and Moni...
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Forum: Alternative Power - Solar, Wind & Hydro
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Using a Fanvil X6 Phone w...
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WVC Micro Inverters (KaiD...
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DC Solar Panel Strings - ...
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Yealink YHS33 / W56H Head...
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  Hyper-V Generation 2 VM - No UEFI-compatible file system was found.
Posted by: admin - 13-12-2018, 03:42 PM - Forum: Virtualisation (Hyper-V and VMware) - No Replies

Once you have met all the requirements for a Generation 2 Hyper-V Virtual Machine (64-bit Guest OS and OS that is on the supported list etc.) you may encounter the following error when trying to boot the VM from your ISO:

SCSI DVD     (0,1)       No UEFI-compatible file system was found.

   

Solution: Make sure that the ISO you are installing/booting from is NOT located on a URL or the Folder it is located in is NOT Shared.
Bizarre but true!

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  Windows 10 Sleep and Monitor Wakeup Problems
Posted by: admin - 12-12-2018, 02:16 PM - Forum: General Discussions - No Replies

You are no doubt reading this because your monitor/s don’t wake up properly after your PC enters Sleep mode or tries to come out of “Turn off Display Mode” (Turn off Display after a set period of time).

You can either disable Sleep Mode entirely or, if that is not an option for you, set advanced Power Options as follows:

Open “Power Options” and select “Change Plan Settings” then “Change Advanced Power Settings”.
Under “PCI Express” set “Link State Power Management” to “Off” – this is the main culprit.

You may also want to turn off (Disable) “USB selective suspended setting” if you find that the USB Mouse or Keyboard doesn’t respond to input.

While everyone is in favour of saving power, extending the longevity of hardware or protecting your privacy when you are away from your PC, you will no doubt encounter issues with Windows 10 with either Sleep of “Turn off Monitor” Modes.

Personally, I choose never to put my PC to Sleep and rather prefer to Turn off the monitor after a pre-set time. My reasons are clear in that I have critical monitoring software installed that “stalls” when the PC enters Sleep Mode.

Figure out what will work for you – I mostly find that having both Sleep Mode and “Turn off Display” creates a headache when it comes to waking up my 3 monitors.

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  Using a Fanvil X6 Phone with Jabra 920 Headset
Posted by: admin - 22-11-2018, 04:32 PM - Forum: Fanvil - No Replies

Ensure that the Fanvil Phone has the most current Firmware.

Connect the Fanvil/VT EHS (Electronic Hook Switch) to the Jabra 920 Base as shown here:

   

Log into the Fanvil Phone and Enable the EHS as shown here.
Note: If you only have options for "Disable" and "Plantronics" then you need to upgrade the Firmware.

   

If you want both the Headset and the Phone to simultaneously ring then Disable "Ring From Headset".
If you Enable "Ring From Headset" then only the Headset will ring - this a personal choice.

   

Note: The Headset Button on the Phone does very little other than open a Line to the Headset for dialing out - a bit of a limiting factor with these Fanvil Phones and unlike the Yealink Series where the Headset Button toggles "everything" between Headset and Phone.

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  WVC Micro Inverters (KaiDeng) - My Review
Posted by: admin - 21-10-2018, 02:42 PM - Forum: Alternative Power - Solar, Wind & Hydro - No Replies

I always wanted to use Micro Inverters instead of my Central Inverter for many and obvious reasons.

1 – Micro Inverters adapt to the condition/output of individual Solar Panels – IE: if one Solar Panel in a (Series) String has shade or has failed, it does not drop the entire String’s output (the problem that I was faced with).
2- Micro Inverters (mounted underneath the Solar Panel) convert the Solar Panels DC Voltage to AC before transmitting to the destination (mostly “Tied” directly into to the Grid).
3- Micro Inverters can be monitored, identified and diagnosed individually providing that the Model chosen has WiFi ability. Very handy if one of the Inverters fail and you want to locate the Solar Panel it is connected to without removing your roof.
4-  Micro Inverters eliminate the horrendous loss of power that DC Voltage is famed for over longer cable runs. DC Voltages from Strings can be extremely dangerous and they can reach in excess of 500 Volts and suffer from corrosion (in the early years of inter-city transmission when DC current was used, the poles were frequently reversed to slow down the corrosion process).

This was realised during my transition from Central Inverter to Micro Inverters as blogged here: http://www.computersense.co.nz/forums/sh...hp?tid=243

The cost of Micro Inverters was (and in most cases, still is) prohibitively expensive for most small to medium sized installations. In many cases, it more than doubles the price per Solar Panel installed.

The cost of Micro Inverters was the determining factor when I installed my Solar 4 years ago and thus ended up with a Central Inverter instead (which did well but masked the obvious power loss I was experiencing without knowing).

Still being cost-conscious, I was determined to give Micro Inverters a go but I wasn’t going to “experiment” with high-cost “branded” Micro Inverters.

Enter the WVC Micro Inverters (the WVC-600 to be precise).

What other place to look for something to experiment with other than Alliexpress?
The WVC Inverters immediately took the spotlight based on “affordability” and I soon discovered that all other sites (eBay, Amazon and Alibaba) were selling these under different names like MarsRock, Supoele, Snaterm, Tricorpower, Jesudom, Shinny and Jasmint (to name only a few).

All these Micro Inverters are manufactured by Dongguan KaiDeng (KaiDeng Energy Technology).

There are mixed reviews on the Internet regarding these KaiDeng Micro Inverters – I soon discovered that the reviews were either made on older models (which did seem to be problematic and “out of box” failures were high) or by reviewers on drugs or don’t know how to handle electronic equipment (like breaking MC4 connectors and blaming it on the manufacturer).


What you get in the Box:
You get the Micro Inverter of course together with stainless bolts/nuts/washers for mounting to your Sting Rails and a heavy duty/high quality power cable (3x 4mm cores) for daisy-chaining two or more Inverters together.
 
   

   

I was immediately startled at the high-grade quality which seems lacking in most Chinese-made equipment.

Not deterred by negative reviews on "the Internet" and, after receiving these first batch of Micro Inverters for testing, I gingerly tested them one at a time with two 250W Solar Panels and to make sure each of them worked “out of the box” – they all worked flawlessly.

After temporarily installing all the Micro Inverters on one String (of six 250W Solar Panels) and running for 2-weeks I was astounded that I was generating an average extra in excess of 2KW per day for that period (even during some BLEEP and stormy weather)!

I didn't hesitate in permanently installing them at next opportunity.

Here they are installed:

   

I then spent the following weekends permanently wiring them into the Grid with appropriate new AC Cables and Breakers.

It feels so good to get rid of those bastard DC components and reap the benefit of reliable AC.
The last Solar Panel in this particular String gets shade in the late afternoon which used to collapsed the entire String for the last 2-3 hours of sunlight - no more of that crap.

Six weeks on and everything is "heaven" and I since received another eight WVC-600 Micro Inverters to convert the rest of my installation and get rid of the rest of the bastard DC Serial Stings.

In summary:
I am over-the-moon with these WVC Micro Inverters and highly recommend them - however, if you live in a "backward country", you may find that getting them certified for your installation a pain (or not possible - so I have read) but these Inverters meet 80% of the worlds countries safety standards "that count".
I did, at the same time, purchase the WVC Modem to monitor the individual WVC Micro Inverters which is a great aid in checking the health of each Inverter.
However, I thought it best to do a separate review on the WVC Modem and the KDM Software used to monitor the WVC Inverters - coming soon.

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  DC Solar Panel Strings - DANGER
Posted by: admin - 07-10-2018, 01:52 PM - Forum: Alternative Power - Solar, Wind & Hydro - No Replies

Today I starting installing Micro Inverters on six of my Solar Panels mounted on the garage roof.
These six Solar Panels were installed in March 2016 in a series string.

   

During the removal of the downlink connection (output of last Solar Panel to start of the string) the MC4 Connector disintegrated in my hand.

   

I was shocked at the condition but really not surprised – still, only 2.5 years producing power I was somewhat disappointed (knowing that I have another 16 Solar Panels on the house in a similar arrangement but with much higher DC voltages).
I DID notice considerable degradation of output during those years but I didn't think much of it as I was adding more strings in better orientation to the sun on the house.

This "corrosion" is typical of what happens with high voltage/current DC Current components and one reason to why your mains supply is AC and not DC.
Just take a look at the battery terminals of a car that have not been properly maintained.

AC is your friend - DC is dangerous and I am so glad that I invested on enough Micro Inverters to convert the rest of my installation.
I have learnt this lesson so that you don't have to.

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  Yealink YHS33 / W56H Headset Wiring Pinout
Posted by: admin - 21-09-2018, 04:06 PM - Forum: General Discussions - No Replies

The YHS33 Headset Pinout wiring is as follows:

RED - Speaker +
BLACK - Speaker -

GREEN - Mic +
YELLOW - Mic -

To connect to a W56H Handset you will need a 3.5mm 4-pole jack.
Image and pinout of jack coming soon...

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  Unable to start the Exchange Transport Service after removal of Trend MSA/SMEX
Posted by: admin - 18-08-2018, 02:58 PM - Forum: General Discussions - No Replies

The Exchange Transport Service will not start (or start then stop) after removing/uninstalling the Trend Messaging Security Agent (MSA/SMEX) from the Exchange Server.

Explanation:
Trend MSA (SMEX) installs a "hook" on the Exchange Transport mechanism which intercepts inbound Email for analysis.
When Trend MSA is uninstalled, the "hook" remains in place which either prevents the Exchange Transport Role from accepting inbound messages or preventing the Exchange Transport Service from starting.

Resolution:
The MSA "hook" needs to be manually removed with Exchange Management Shell.
To identify/verify if the "hook" is active run this Exchange PowerShell command:

get-transportagent

If this "hook" is active it will show as follows:

   

To remove the MSA "hooks" run the following Exchange Management Shell commands and choose [A] to remove after each:

Uninstall-TransportAgent -Identity "ScanMail Routing Agent"
Uninstall-TransportAgent -Identity "ScanMail SMTP Receive Agent"

   

You should now be able to successfully start the Exchange Transport Service.

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  DrayTek Router with LDAP (Active Directory) for Dial-in Users
Posted by: admin - 25-07-2018, 03:21 PM - Forum: Networking - No Replies

Setting up a DrayTek Router with LDAP (Active Directory) for Dial-in Users.

1) Enable Remote Access VPN Service - for this example we are going to use L2TP as the VPN Service.
Under VPN and Remote Access, Remote Access Control tick to Enable L2TP VPN Service and click OK and reboot the Router.

   

2) Configure PPP General Setup
Under VPN and Remote Access, PPP General Setup set Dial-In PPP Authentication to PAP Only (this is a requirement for LDAP as explained in the note of the this screenshot).
Enable AD/LDAP, LDAP and adjust the DHCP scope if required for Remote Users.

   

3) Create a VPN IKE/IPsec Pre-Shared Key
Under VPN and Remote Access, IPsec General Setup enter your desired Pre-Shared Key that Users will use when setting up their VPN Connection on their Computers.

   

4) Setup Active Directory/LDAP for Users to authenticate with.
Under Applications, Active Directory/LDAP first configure the General Setup as follows:
Click to Enable and set the Bind Type to Regular Mode and enter the IP Address (Server Address) of your Active Directory Server - leave the default LDAP Port at 389.

   

The remaining steps are where many mistakes are often made.

The Regular DN and Regular Password is used to authenticate with your Active Directory Server and thus a Domain Administrator Account must be used (either existing or created specifically for this purpose).

For the correct Regular DN for your setup, open Active Directory Users and Computers.
In this example, we have color-coded things to make it easier.

   

For the above example, the correct Regular DN should look like this:

cn=administrator,cn=Users,dc=mydomain,dc=local

Note that we have used the account Administrator for this purpose and thus the Password for the Administrator Account will be the Regular Password.

If you are using SBS Server, your Regular DN would look something like this:

cn=My Admin,ou=SBSUsers,ou=Users,ou=MyBusiness,dc=mydomain,dc=local
Note that the CN name "My Admin" is the "displayed" name and not the actual account name.


5) Setup Active Directory/LDAP Profile
The Active Directory/LDAP Profile will connect your selected OU (Folder) containing your User Accounts for Remote Access.
Under Applications, Active Directory/LDAP select the Active Directory/LDAP Profiles tab.
Click to open the properties of the first available Index (in this case 1).

   

Enter a preferred Name for this Profile (IE: LDAP as per this example) and under Common Name Identifier enter cn.
Next click on the search icon (circled) - if all is good at this point you will see a pop-up window of Active Directory items.

Click on the Container or Organizational Unit where your Users are located (IE: in this example it will be CN=Users) and the field AD/LDAP Distinguished Name will automatically be filled for you - click OK. You should now see the correct Base Distinguished Name filled in.

   

The Group Distinguished Name is used for optional filtering as described here by DrayTek:
Group Distinguished Name is used while administrator wants to do an additional filtering. While both Base DN and Group DN are configured, the user account must be available in both path, otherwise, it cannot pass the authentication.

Your completed Profile will now look like this:

   

This completes the setup of the DrayTek for Active Directory/LDAP integration for your Domain Users.
I will add Client-side steps soon (setting up the VPN Connection from a Windows PC).

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  DrayTek - IPSEC LAN-LAN and L2TP Internal RRAS
Posted by: admin - 24-07-2018, 05:54 PM - Forum: Networking - Replies (1)

We have multiple Customers using DrayTek DV2925 or DV2926 Routers.
These Customers have LAN-to-LAN IPSec VPN Tunnels to two of more remote locations.
 
We now have requirements to deploy L2TP Client Connections to an internal L2TP Remote Access (RRAS) Server (due to Apple dropping PPTP in IOS and current Windows PPTP restrictions with recent Windows 10 Updates).

   

Using the DrayTek Internal L2TP Service and/or using the DrayTek VPN Client is not an option in most of these cases (as administration of these connections still needs to be controlled with the user’s account in Active Directory).
 
We can get IPSec LAN to LAN working or L2TP working but not at the same time.

There seem to be solutions available to other manufactures Routers like Juniper, SonicWALL and Cisco but nothing on how to achieve this goal with DrayTek Routers.

Anyone in the same boat?

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  NCH SoundTap Audio Problems - Crackle and Popping
Posted by: admin - 10-07-2018, 07:19 PM - Forum: General Discussions - No Replies

SoundTap (by NCH Software) Audio Problems - Crackle and Popping

I purchased SoundTap 5.05 and had endless audio quality problems on the recorded file's playback.
Random popping and crackling and sometimes skipping (like a dirty audio CD).

I noted through Google searches that I was not alone and this seemed to be a widespread and uncurbable problem.

I spend days trying all sorts of recommendations like using MP3 instead of WAV and drastically dropping the Audio Level Input - none of these helped in the slightest.

 Someone mentioned that disabling Apple stuff (services) cured their problem - I don't use Apple stuff (and never will) so that wasn't my issue but it did lead me to believe that "something" outside SoundTap was responsible for Audio corruption.

So, off I went on a mission...
I closed every single App on my Windows 10 Pro PC and was pleasantly surprised that my problem was resolved.
I then began a methodical process of opening each of my frequently (always running) programs - IE: Outlook, Accounting Program, Excel Spreadsheets, Virtual Hyper-V Machines etc.

It turned out that "my" culprit was the Security Camera's DVR which I always have open in Internet Explorer (IE)!
More so, the ActiveX control that the DRV requires for IE.

I found that to be too disturbing to be true but I was able to solidly confirm it.
Even though the content I was recording was streamed with Edge, having IE open with that ActiveX plugin totally destroyed the audio quality. 

Hope this helps some folk out there or at least points them in the right direction...

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