Sudden Upstream Collapse After 16 Days Stability – FTTC Line Fault

[oldjohn1945]

Hi,
I’ve had a stable FTTC connection since 23 May, with upstream consistently around 6.5 Mbps and attainable around 10 Mbps. SNRM was steady at ~10 dB and the line had been up for around 16 days with no issues.

Today the upstream has suddenly collapsed to:

• 654 kbps sync
• 3255 kbps attainable
• 12.7 dB SNRM
• Errors rising

Downstream remains normal at ~28.6 Mbps with attainable ~47 Mbps.
Attenuation is unchanged.
No changes to internal wiring or equipment.

This is an upstream‑only line fault, not DLM and not a router/Wi‑Fi issue. The pattern matches an HR fault, water ingress, or a cabinet port problem.

Could you please raise this with Openreach for:

• PQT (Pair Quality Test)
• Lift‑and‑shift if the port is faulty
• Engineer visit if PQT fails

The fault is active right now.
Thanks.

John

[Gliwmaeden2]

@oldjohn1945, you need to try to reach Chat through My Account or phone 03451 720088 for technical support  - there's no staff support on the forum any longer. 

Details of opening hours here:

https://help-centre.talktalk.co.uk/Billing_and_Payments/Something_else/How_to_contact_TalkTalk_Broad...