Every Uplevel device ships with 1 Gbps auto-negotiating Ethernet ports. When two devices negotiate a link, one of three speeds is selected — and the Portal shows the result via colour on the relevant port:
| Negotiated speed | Portal colour |
|---|---|
| 1000BASE-T (1 Gbps) | Green |
| 100BASE-T (100 Mbps) | Blue |
| 10BASE-T (10 Mbps) | Yellow |
Reading the colours during troubleshooting
If you cable two devices that should negotiate at 1 Gbps but the port shows blue or yellow, the negotiation has fallen back to a lower speed for a reason. The usual causes:
- One of the twisted pairs in the cable has degraded — 1000BASE-T uses all four pairs; 100BASE-T uses two; 10BASE-T uses two of the four. A damaged pair drops the link to the fastest speed all four pairs can support.
- The cable is Cat5, not Cat5e or higher. Cat5 is rated through 100BASE-T only — it doesn’t reliably carry 1 Gbps. Cat5e is the minimum for gigabit; Cat6 is preferable for new installs.
In either case the fix is the cable, not the gateway. Swap it for a known-good Cat5e/Cat6 run and re-check the colour.