Pakistan Telecommunication Company Limited (PTCL) has warned users across the country about possible internet slowdowns and service disruptions during evening hours from May 11 to May 18.
According to the company, the issue is linked to scheduled maintenance and repair work on an international submarine cable system.
Evening Hours Expected to Be Most Affected
PTCL said customers may experience:
- Slower browsing speeds
- Streaming interruptions
- Increased latency
- Connectivity degradation during peak evening hours
The company noted that internet traffic typically rises significantly during evenings, making the impact more noticeable during that time.
Submarine Cable Maintenance Behind the Issue
The disruption is connected to maintenance work being carried out by an international cable consortium on one of the undersea communication systems used by Pakistan.
Pakistan relies heavily on submarine cables for international internet connectivity, and even temporary faults or repairs can affect nationwide internet performance.
Why These Cables Matter
Submarine cables are critical to Pakistan’s digital infrastructure:
- They carry the majority of international internet traffic
- Businesses, freelancers, students, and streaming services depend on them
- Faults can impact millions of users simultaneously
Industry experts say Pakistan’s internet ecosystem remains vulnerable because a large portion of bandwidth depends on a limited number of undersea routes.
PTCL Says Alternative Bandwidth Arrangements Underway
PTCL stated that local technical teams are working with international partners to minimize the impact by arranging alternative bandwidth routes.
The company also apologized for the inconvenience and said efforts are being made to restore normal service as quickly as possible.
Internet Slowdowns Could Affect Businesses and Freelancers
The warning comes at a time when Pakistan’s digital economy heavily depends on stable connectivity.
Possible impacts include:
Remote Work Challenges
Professionals relying on video calls and cloud services may face interruptions.
Freelancing Delays
Pakistan’s large freelance workforce could experience upload and connectivity issues.
Streaming and Gaming Issues
Peak-hour entertainment services may face buffering and lag.
Pakistan’s Growing Dependence on Digital Infrastructure
Recent years have seen repeated internet disruptions caused by submarine cable faults and maintenance activity.
Experts argue Pakistan needs:
- More redundancy in internet infrastructure
- Additional international bandwidth routes
- Better resilience against cable failures
Without upgrades, temporary disruptions are likely to continue affecting users nationwide.
Conclusion: Users Advised to Prepare for Slowdowns
PTCL users across Pakistan have been advised to expect temporary internet slowdowns between May 11 and 18, especially during evening hours.
While repair work is aimed at improving long-term stability, the maintenance period may temporarily affect connectivity for millions of users.


