Android 12 exclamation mark on mobile data internet

 pixel 4a here: after upgrading the mobile data does not work. Resetting did not work neither restarting. Here is the solution: take the same out of the device and put it again if it is a physical one (nano). This will force the carrier and phone to match their settings again.

How to fix Your DNS server might be unavailable Error in windows

This happened on my machine when two devices got the same lan ip. The windows message in my case was not precise. if you go to cmd and run: ipconfig /all

you will see that there is a '(duplicate)' string beside the lan ip. In my case the lan ip was manual. Setting it to automatic resolves the issue or you can choose another ip or you can switch off the device that has the same ip (you get this information from the router itself) then switch it on and it gets a different ip. Glad I caught the issue in half an hour and solved it, it was very disappointing.

بيوعات الاراضي في الاردن قوشان

 "الرجاء التاكد من الرقم المتسلسل حيث تعذر العثور على مالك العقار"

لاصدار براءة مالية الكترونية

هذه الرسالة تظهر بسبب الاصفار على يسار الرقم, يرجى حذفها والمحاولة

In sql server 2008 on a subscriber of a merge replication, the following message in the synchornization status is stuck at:

"Extracting snapshot file from cabinet file"
This happens when the snapshot.pre in the cabinet file is corrupted.
Copy it manually and make sure it is not 0 size

To send stool sample from Germany to abroad, I used UPS:
You have to provide a commercial invoice with a minimum value regardless of the fact that stool sample is worthless. I put 10 EUROS and made my own commercial invoice from the UPS template I found online. If you do not provide the invoice, your envelop will be returned to you. If you forgot to attach an invoice, drive to the centre yourself and provide it instead of wasting your time on their useless online/telephone customer service.
Choose a week where there no holidays neither in the origin nor the destination or in-between stations! Once my package delayed in Dubai a full week due to holiday there, which was just a hub on the route!

Mac Preview Error Saving PDF "Error while printing"

Solution: (Thanks to GeekyGirl007 comment bellow)
"The solution is to go into your Settings -> Printers and Scanners -> right click anywhere in the left hand box that lists your printers and a pop up will come on "reset printing system", click this. It will erase all your printers and scanners, but it solves the issue completely. You can then reinstall all your printers/scanners as needed. Hope this helps someone!"

The Article:
I upgaraded to Catalina macOS. Now when I try to save a document as pdf from Preview, I get an error: "Error while printing" as shown bellow

I found out that the error happens only with Preview. After troubleshooting, I found out that the error occurs only if the selected printer is not online! Although you are merely saving a pdf, still the real printer should be online. If it has the lightning symbol (see bellow), then you get the error. I am keeping my default printer always online now. Hope apple fixes the issue.

Vodavone Deutschland Mailbox deaktivierung:
einfach tippen Sie ##004# an