Ubiquiti error...

RedvGreen · 25 May 2019 at 22:59

Relaid the new external Cat5e, crimped both ends using the new 3-prong (weird pass-through) connectors and... cables 1-7 all ok, cable 8 = nothing. On both ends.

Recrimped both ends, same thing.

I think I’m about ready to drill a bigger hole and just put the premade cable through it!

God this is so infuriating! Literally crimping everything so calmly and accurately. I even chopped the rj45s off both ends, dissected them, and verified all 8 cores had the three prongs of the rj45 penetrating them.

bremen1874 · 25 May 2019 at 23:15

Depending on the Cat5e you've bought the wires are probably one gauge smaller (24 AWG rather than 23 AWG) than you'd find in a Cat6 cable (that's one of the differences).

You need to match the category of the cable to the category of the plugs and sockets you're using with it. Mixing and matching is asking for trouble (but not usually anywhere near the amount of trouble you've experienced).

On any job like this terminate and test the cable before any final routing and clipping.

RedvGreen · 25 May 2019 at 23:40

bremen1874 said:
On any job like this terminate and test the cable before any final routing and clipping.

Thankfully the cable is just loosely draped over the roof of the downstairs extension and into the loft, with plenty of slack to play with, so I haven’t waste any time pinning the cable etc.

I am using this exact cable.

The rj45 Cat6 connectors allow for the cable to be pushed right through and out the other end, so I’ve done several extremes - too long, too slack, too short, short enough Etc.

bremen1874 · 25 May 2019 at 23:45

That's thin at 25 AWG.

You're using plugs that are expecting 23 AWG cable.

RedvGreen · 26 May 2019 at 13:13

bremen1874 said:
That's thin at 25 AWG.

You're using plugs that are expecting 23 AWG cable.

Based on this, I used my cheapo cat5 rj45s, and it worked first time! I am quite surprised the cable thickness matters so much, especially when contact was made with each core... but it worked so I’m not complaining!!

Thanks for your help - and to everyone else too. The AP is now fully functional in the back garden room...

bledd · 26 May 2019 at 14:28

That's not external cable..

(Unless I'm missing something)

As I said in the that earlier, use this..

https://www.millsltd.com/fusion-cat-5e-external-cable-black-5894.html

Get the ends from them too.

Take a photo of your new ends with cable in them..

RedvGreen · 26 May 2019 at 17:24

bledd said:
That's not external cable..

(Unless I'm missing something)

As I said in the that earlier, use this..

https://www.millsltd.com/fusion-cat-5e-external-cable-black-5894.html

Get the ends from them too.

Take a photo of your new ends with cable in them..

That’s the cable...

The rj45 wired with the new cable?
Here’s the AP end, I’m not going in the loft just for a photo though - imagine it looks exactly like this picture, just darker background!

bremen1874 · 26 May 2019 at 17:28

That is external grade cable and the plugs look okay.

That isn't the cable you linked as 'this exact cable' above.

That cable probably is actually 24AWG as you'd expect rather than 25AWG. The product description and the datasheet don't agree.