According to 9to5 Google, Google pushed a security update for the Pixel 6 series in early December, but there was a lot of user feedback that the phone's network signal was weak after the update. In addition, some users are unable to call the problem.
Google announced on December 30 that it was suspending the update and would fix it next week. Google did not say why the updates were suspended.
According to IT Home, the majority of users experiencing network and phone problems after the Pixel 6 update are in Europe. Google says a fix has been made and should be available by late January. This update also includes everything from the December update.
If you still encounter network connection problems, you can use the Android Flash Tool to restore the mobile phone system to its factory Settings. If you don't encounter any problems, you can do nothing. Google apologises for the inconvenience.