It says "Sign in failed. The Internet connection appears to be offline." I have the same problem getting on their website on all 4 browsers. I have NO trouble elsewhere on the web on my smartphone or with any other app. THE HELP LINK THEY GAVE ME SAID, "Your connection is not private" (as does EVERY other Lidl weblink I tried). Their help weblink said: NET::ERR_CERT_AUTHORITY_INVALID. All 4 browsers say the same thing. This server could not prove that it is help.lidl.com; its security certificate is not trusted by your device's operating system! The app is MyLidl, a grocery store app. I have a Samsung Galaxy S20 FE 5G, using android 12.
I have probably spent at least 14 or more hours trying to figure this out and have been in contact with at least 5 different companies plus my antivirus software companies trying to see if the problem was with them, but I struck out on every one of them. I have reinstalled the app at least 4 times it does not help. I did not know I had to have their app to get their store discounts and WAS obviously able to download the app in their store.
Solved! Go to Solution.