Have you tried using the test socket with a filter to see if that improves your connection speed by eliminating your internal wiring and master faceplate from causing any problems
Just now plugged into test socket with a filter
Will post back in a few days with update
| Product name | BT Smart Hub 2 |
| Serial number | 1850111112 |
| Fireware version | v0.17.01.12312-BT (Mon May 11 18:49:53 2020) |
| Board version | R01 |
| GUI version | 1.56 15_02_2019 |
| DSL uptime | 2 days 8 Hours 19 Mins 4 Secs |
| Data rate | 20.0 Mbps / 49.0 Mbps |
| Maximum Data rate | 24.3 Mbps / 59.5 Mbps |
| Noise margin | 8.2/8.7 |
| Line attenuation | 7.1/13.9 |
| Signal attenuation | 7.1/15.2 |
| VLAN id | 101 |
| Upstream error control | Off |
| Downstream error control | Off |
| Data sent / received | 1.5 GB Uploaded / 2.1 GB Downloaded |
| Broadband username | bthomehub@btbroadband.com |
| BT Wi-Fi | Active |
| 2.4 GHz wireless network name | BT-GSA2PN |
| 2.4 GHz wireless channel | Channel: 11 |
| 5 GHz wireless network name | BT-GSA2PN |
| 5 GHz wireless channel | Channel: 48 |
| Wireless Security | WPA2 (Recommanded) |
| Wireless mode | Mode 1 |
| Firewall | On |
| MAC address | 44:FE:3B:D6:DC:BA |
| Software variant | - |
| Boot loader | 0.1.7-BT (Thu Nov 30 09:45:22 2017) |