The ADSL networks of Afrihost and Axxess saw degraded performance on 16 October thanks to a distributed denial of service (DDoS) attack on MTN.
“The DDoS attack on our carrier provider is occurring between their UK and AMS peers which is causing congestion on the upstream [network],” said Axxess.
MTN has mitigated the attack and the two ADSL providers said that service should return to normal.
Details of the cause of the ADSL network problems come after subscribers complained about slow or non-existent Internet connectivity and high latency on their Afrihost and Axxess digital subscriber line accounts.
Both Internet service providers acknowledged the issue, and indicated that their upstream provider, MTN, was working on a fix.
Afrihost said it saw degraded network performance on both its wholesale ADSL (IPC) and mobile links countrywide.
The service provider said its proof-of-concept Afrigreen network, which uses a different upstream provider, was stable and working well.
Update: Axxess provided details on the cause of the outage, and the article was updated accordingly.