GPS sat nav stopping working?

[tight fart]

Any thoughts on GPS not working, in London yesterday with 3 different units, iPhone, Android & a built in unit, all 3 stopped working for several hours as we traveled around.
We were driving a Mercedes diesel, and I can’t think of anything but vehicle interference causing it.
All 3 units were on different operating and sat nav systems.
iPhone & google maps.
Huawei & waze.
Android & co pilot.
All saying waiting for gps signal.

[drdino]

What kind of Mercedes? Did it have athermic glass? Was the gps working outside of the vehicle?

[tight fart]

No idea about the glass but a fleet of 200 identical vehicles and never happened before.
They are all fitted with telematics for tracking etc, we also got a call from the office asking where we were as they couldn’t track us.
Very odd.

[GoodDoc]

tight fart said:

No idea about the glass but a fleet of 200 identical vehicles and never happened before.
They are all fitted with telematics for tracking etc, we also got a call from the office asking where we were as they couldn’t track us.
Very odd.

Someone hasn't left a GPS Signal blocker in the Van by any chance?