Hi, I know about the Verizon outage, but my problem started mid-September, and other customers might have a similar problem.
My Apple Watch Series 4 Cellular/LTE only connects when phone is off OR disabled with iPhone SE in airplane mode, and Wi-Fi, Bluetooth, and Cellular are confirmed off. Otherwise, calls fail, and cellular does not toggle on the icon stays white. Also, if the phone is on and not disabled, the Watch's Wi-Fi stays on in watch settings, even though the icon changed from blue to white.
I went through the Verizon digital troubleshooting steps about four times per day, including unpairing the watch and resetting the watch, network, phone over and over. Factory-resetting the phone and watch worked for a few hours, but I could not change the watch face. Another reset to fix the watch face brought back the Cellular/LTE problem. My first chat was the day of the Verizon outage, so I will contact Customer Support again after the outage is over. The problem began in September with my Watch OS 6 updates. Watch, and Phone are running the latest versions. Apple wants me to work with the carrier before using Apple Care.
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My apologies if I missed the edit button on my original post. The Watch OS 6.1 Update is working well so far. I learned a lot about my watch, but this process, in the middle of a Verizon Outage, took up too much time.
We know your time is valuable Kam2. I am a consumer myself and have a watch. I know that we rely on these accessories for everyday life. I am glad you were able to get your watch fix. We are always here to support you whenever you need it. www.vzw.com/support AmberF_VZW
That upgrade "fix" did not last either. Apple is sending me a replacement. If you do not live near an Apple store, Best Buy is an authorized repair location. Although I could duplicate the problem in front of the Best Buy technician, their software diagnostics did not show any problems. In this situation, I had to work with Apple to get the replacement.