Wifi high speed 5ghz band region restrictions

[Dodohadi]

I don't know why only samsung devices when starting with Sim card it restrict some wifi channels even it is not restricted by the government. I am talking about egypt and tried several times with screenshots to contact samsung but they didn't understand the problem in my country 

[SamsungModerator4]

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[Dodohadi]

Wifi works on different bands specially 5ghz has low speed and high speed channels ( 36 40 44 48 149 150 152 160) as attachments. When there's no sim card the device see all these wifi frequencies and i can connect to any wifi router or android auto device regarding the frequency but when the device has the sim card in it it restrict the high speed bands from 149 and above so the device cannot see the device wifi to connect to it.