Phone 8 wire cable for ethernet network

If you just cut one end off a manufacture cable and then aligned the wires as you noted (brown, brown/white, green, green/white, blue, blue/white, orange, orange/white) you likely have a problem with the wire order.

There are two standards for cabling:

• T568A: green/white, green, orange/white, blue, blue/white, orange, brown/white, brown
• T568B: orange/white, orange, green/white, blue, blue/white, green, brown/white, brown

I would double check your manufactured end to ensure what the order is, and match that pattern on your re-terminated end.

As others mentioned, you can check your termination and cable with a cable tester. This should tell you if you have miss-wired or have a fault.

Also, if the cable you bought isn't using one of those standards... I wouldn't buy from them again.

Quick Edit

After seeing your comment, I realized that you transcribed the order you put them in, in reverse. Generally, you should read from the side without the clip from left to right.
Doing this would have read (orange/white orange, blue/white, blue, green/white, green, brown/white, brown). Compare to the T568B, and yes it's clear that your problem was with the wiring order.

Call someone at the far away place and have them read out the color order to you. Or walk over there. The max length of the cable is 100m...not that much exercise.

Or better yet, cut that jack off and wire it properly.

If the pairs are in the wrong order the cable can still work, but will confuse the next guy. If they were not wired with pairs in the right places, you wont have "twisted pairs". That is essential for proper transmission, especially on longer runs.

A multimeter wont do you much good. A cable tester will. My fluke cable tester will try to establish a connection to the device on the other end on different combinations of pairs and report which ones worked.