We are seeing what looks like congestion on the Walworth exchange. Customers will be experiencing high latency, packetloss and slow throughput in the evenings and weekends. We have reported this to TalkTalk.
Talk Talk are still investigating this issue.
The congestion issue has been discovered on Walworth Exchange and Talk Talk are in the process of traffic balancing.
Capacity has been increased and the exchange is looking much better now.