Teleport failure?

[Rolig Loon]

If your destination is above the 300m flight ceiling, you can't get there without a flight feather.  Some viewers, like Firestorm, have a built-in flight assist that gets around the flight ceiling.  The V3 viewer does not, so you simply can't fly above 300m.  If you TP to a spot above there, you fall.  If you try to fly up, it's like flying into a pillow.  There are zillions of free flight feathers around.  If you aren't using Firestorm, get one and wear it.

[Rolig Loon]

If your destination is above the 300m flight ceiling, you can't get there without a flight feather.  Some viewers, like Firestorm, have a built-in flight assist that gets around the flight ceiling.  The V3 viewer does not, so you simply can't fly above 300m.  If you TP to a spot above there, you fall.  If you try to fly up, it's like flying into a pillow.  There are zillions of free flight feathers around.  If you aren't using Firestorm, get one and wear it.

[Lindal Kidd]

A flight feather/flight assist will solve the problem of flying up to the destination.  We still need to address the teleporting problem.

You SHOULD be able to teleport in at any altitude (even if you can't stay there, without a flight assist).  However, it is possible for a parcel owner to set a landing point for that parcel, and it might not be the coordinates you want to go to.

When you have this problem, notice your arrival coordinates.  Is it ONLY the altitude (Z) value that is not what you intended, or are all three coordinates different from what you tried to TP to?  If the latter is the case, it's probably a landing point the parcel owner has specified.

[Faubio Alter]

Ask the SIM owner to change the landing point. There are numerous bad landing point on SL from those too close to those to far away to those that may have been moved to those that simply do not work. Usual this a SIM owner mistake problem and has little to do with you or SL, just someone goofed, it happens.