Aug 212017
 

We recently ran into a problem where a customer became unable to access the FTP site of a partner. They had been accessing this FTP site regularly for years. About two weeks ago, it abruptly stopped working. When connecting via any FTP client in either Active and Passive modes, they were unable to login. The customer is using the Comcast provided router/modem with a static IP.

At first look, it appeared as if the partner was blocking them since we were able to connect from our office and from other locations. During our testing, the customer was able to connect to other FTP sites fine. We did find, however, that they were unable to connect to any FTP site hosted by Network Solutions. Their partner’s FTP site is also on Network Solutions.

Comcast replaced their modem/router and the problem persists. Here’s the kicker: We put a laptop behind their device with the static IP and it worked.

Comcast then switched the customer to a Dynamic IP, and it now works. At this point, I can only conclude that an upstream Comcast router on the static IP network is mangling FTP traffic to some hosts. I’ll update this post when I know more.

 Posted by at 9:01 am
Apr 072016
 

Yesterday we had two machines in the shop getting fresh installations of Windows 7. On first check for Windows updates with SP1 installed, both hung on checking for updates. We let one machine check for 10 hours without success.

Hung on checking for updates

This is taking forever with no end in sight…

The solution:

  1. Stop the Windows Update Service (wuauserv).
  2. Download and install KB3050265
  3. Download and install KB3102810

Reboot and check for updates again. Both of our machines found their required updates in less than 5 minutes.

Update 7/27/2016
Problem returns. Seems Microsoft is tweaking Microsoft update and breaking it for Windows 7. After doing the above updates, run these two and you should be good to go:

  1. KB3020369 (May already be installed)
  2. KB3172605 July 2016 Update Rollup
 Posted by at 2:12 pm