Hi all - so doing a search on the same "Sorry. There was a problem on our end. Please sign in later" message as
@Nobbyk had, on a 2016 XF rather than XE (but they're pretty similar right), I landed here!
I actually didn't have an issue with signing in initially (I think) but mid-last year noticed I wasn't getting traffic updates after I renewed with another 3 years Live Navigation (I have been getting traffic fine for previous few years with same SIM card - which is on contract BTW and still plenty of data left). Re-signing in seemed to make no difference. I searched and found a solution, that is to remove my profile from the car (Navigation->Edit->Delete) and then go back in and create a new profile with my existing account. All good - but now I get the above mentioned message and searched on that.
At that point, I contacted Jaguar support and someone there asked me to check a few things re SIM card connection and without resolving it at the time I now have an incident number open and awaiting a problem manager to contact me. But searching the net and reading the above I'm not holding my breath and sounds like I'll be asked to do a software update which I won't do with risk of it trashing the IMC - not unless they agree in advance they can and will install a new replacement one at their cost - a fat chance!!
Things I tried:
1 - enabling Wifi so it's connect to my house wifi (strong signal)- all fine, but still get same msg logging onto Navigation
2 - disable wifi, reset data usage count on SIM back to zero, tried browsing web to use up some data - was able to do this ok so data does appear to be ok, then went back to mobile data setting and checked - yup data usage gone up. But still same msg trying to log onto Navigation
3 - disabled mobile and enabled Wifi in case earlier. Checked web browser first and could access google etc, and then tried logging on - but still get that msg.
So I know a couple of you have said, try a Three SIM card. I don't see how or why that would work when I can get net access via Wifi bypassing mobile data altogether and it still doesn't work, but I'll give it a try. I'll post another reply on here if it works or not. If not I'll take further action against Jaguar and Here but we'll see!
Cheers,
Gareth
Current: 2016 XF 3.0S, previously 2004 XF 3.0D