It wasn't an uninstall/re-install per se, but updating to the latest version just released appears to have corrected it.

So, guess I'll never know what the real reason was.

Cheers.

Can try that.

Was also going to run packet traces on both the iPhone and iPad to see if I could spot the differences.

Nope.

But then again, I also can't reach that page from the iPad or my PC, both of which work and are on the same network subnet.

Typing the target IP directly works from everywhere.

Forgot to add. I have 3 (at least) VPNs loaded on the phone (the same as on the iPad), but none are active.

Didn't make any difference. Still only sees the DVR and not the tuner.

Cheers.

As the title says.

Both iPhone and iPad are connected to the same network. Both fully up to date.