Saturday Link Roundup–mostly DNS + some Internet Explorer
DaleAllow Google Cast to connect to Cast devices on all IP addresses … or my Microsoft Edge was using SSDP, enable though it was disabled, to connect http://www.dial-multiscreen.org/ DNS TTL…
ipconfig /flushdns now requires elevation?
Customers had started to report that ipconfig /flushdns now requires Local Administrator rights. C:\>ipconfig /flushdns The requested operation requires elevation. Not all customers are seeing that though. (Microsoft has gone…
Working from home challenges–Poor mobile phone reception
Which made Skype, Zoom and Teams conference calls impossible, due to the latency suffered. Latency is what really kills these audio conferencing options. Video conferencing was impossible.So we looked at…
How to tell a PC’s network link speed remotely
By using PowerShell like this: Get-WmiObject -class Win32_PerfRawData_Tcpip_NetworkInterface -ComputerName Localhost | Format-Table Name,@{label="LinkSpeed(MB)";Expression={$_.CurrentBandwidth/1000000 -as }} which will return this: I first learnt how to do this by reading this blog…
The Case of the Windows FTP.EXE not working from the corporate network.
The heading alone should tell you the answer, particularly if I add ACTIVE FTP to it. You see, most Corporate IT people consider ACTIVE FTP a bad thing, and block…
Some of the nPing functionally is built into the Notes Client, but not much.
In February 2008, I wrote all about a Lotus Notes diagnostics utility called nPing. It’s no more. Go to the web link I provided then and you’ll see this message:…
Our DNS server lies to me again!
By accident, I found out that my DNS server was lying to me again. Last time I caught it out was when it was serving up the wrong IP addresses…
“We don’t do that here.”
It’s amazing how some companies manage to function, or even survive. I worked with a company who operated a large IBM Mainframe network. Now back in the day (late 1980’s),…
Determining your MTU, and why you should care.
When we talk about networking, sometimes we’ll talk about Maximum Transmission Unit (MTU) packet sizing. I briefly referred to MTUs in the SSL errors, and how to diagnose them post.…
The Microsoft Loopback Adapter, NT4 & Windows 7.
Reading a Microsoft blog post recently, I was reminded of a customer request from late 2002. The emailed request was something like this: Had to use the generic Win NT4…