Quality of Service (QoS) is an ability of a network to provide a better service
for the traffic which passes through it. QoS will make a network administrator
watch the Bandwidth, Latency, and Jitter as well as minimize the lost packet of a
network so that, by using the QoS, the quality of an ISP (Internet Service Provider)
can be identified. There are some ISPs in Indonesia that have been able to use 4G
network. By its quality, 4G network is expected to help the user to experience
quicker internet connection. This expectation is also expected to happen in
Universitas Muhammadiyah Purwokerto, in which the ISP service is expected to
help the lecturers, students, and staff to experience the same. For this reason, the
research is going to identify which ISP is quicker to access the internet, especially
for downloading and uploading. This research explains the comparison between
download and upload from five GSM cards. The stages conducted in this research
include testing the activities of downloading and uploading simultaneously in five
different buildings with nine times testing intervals in each building by using the
same size file. The next stage is conducting some tests to determine which card is
the quickest to download and upload. The used tests include normality test and
Kruskal Wallis non-parametric statistical test. Based on the conducted tests, it is
identified that the best GSM card for downloading is Telkomsel. Meanwhile, the
best GSM card for uploading is Indosat.