What problems do users face with IPTV subscriptions?

Even though IPTV subscription offer many benefits, users often face challenges. The most common issue is buffering, which can be caused by slow internet or poor provider servers. Other problems include missing EPG data, channels not working, or apps crashing on certain devices. Some providers also oversell, which affects service quality. People also worry about subscription scams or services that stop working after a few weeks. So, what are the main problems people usually encounter when using IPTV subscriptions, and how can users avoid or fix these issues to ensure a stable and enjoyable viewing experience.