The club were banned from signing any new players by the Court of Arbitration for Sport (CAS) in July after failing to pay a fine of $600,000 to Jaziri.
Jaziri joined Ismaily in July 2018 on a free transfer and played 12 matches, scoring three goals, but in January 2019 the Egyptian team did not register him in their squad nor pay his salary.
Despite the ban, Ismaily made a host of close-season signings as they seek to revive their ailing fortunes after a disappointing season in which they flirted with relegation until the latter stages.
Their arrivals include Tunisian trio Hamdi Nagguez, Nour Zamen Zammouri and Firas Chaouat as well as Ivorian Kader Coulibaly and Ghanian Yaw Annor.
They will now be able to register them in their squad before the new season gets underway later this month.
"The problem was solved … despite the difficulties we faced in this case," El-Komi said in a statement.
"It's a step on the path that we promised the fans we will go down. I hope we can deliver a trophy to those loyal fans who stood behind the team in the most difficult circumstances."
Ismaily, Egypt's third-most successful team, won the last of their three Egyptian Premier League titles in 2002.
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