CTGP-7 always blocks connection to my router and suddenly stops blocking connection to other players when connected my iPhone hotspot

Stopped playing ctgp7 over a year ago, came back, updated it, had to remove mission.sav file because it said it was old or used in other console, then always when going online mode connected to my router it’s always shown error: “either the network is experiencing high traffic volumes or the service is down” so tried while connected to my iphone hotspot and it works, could have some online races but it would start happening that after finishing an online race after some online races that had finely would get error “a communication error occurred” and the mod would never find online players again and after few minutes searching for players error 006-0612 is shown, tried using google dns and worked but the issue came back after some races, also tried with new ctgp7 save data and could only have one online match and the issue came back, also tried reinstalling the mod and again could have only one online match and the issue came back, noticed that if dont use my console in a few days then try searching online players while connected to the hotspot and using google dns it works but suddenly after some matches the issue returns, also tried changing the voice & data option from my cellular data from 5g to lte then could have only 1 match online and the issue came back

Why would out of nowhere ctgp7 start having this behavior with specifically those networks that are the only ones have access to now? if connect to normal mk7 online using pretendo connected to router ctgp7 blocks it always works (never have set nimbus to run pretendo while trying to go online in ctgp7) it feels like the problem is that the server blocks my console, not the networks

Would really appreciate any help on what can do now to stop my hotspot from suddenly starting to reject connection to other players or my router from blocking online connection