"Cogent Communications" is not a very common national operator (such as Movistar, Orange, Vodafone), so it must be one that only operates in very specific parts of Spain, which can harm the connectio...
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"Cogent Communications" is not a very common national operator (such as Movistar, Orange, Vodafone), so it must be one that only operates in very specific parts of Spain, which can harm the connection at different levels. This may also use cgnat or other technologies that take priority away from cloud gaming and benefit more common services such as Netflix, YouTube, Facebook, etc. In addition, according to their website, they only offer fiber optics, but a network of 30mbps down and 10 up is not usual... (for €25 in Spain they easily give you 300mbps up and down by fiber optics if you are not in a remote town, in my case they give me more than 300mbps when I choose destination servers that do support that speed). I do not know if it is a network subcontracted to a third party, but it is not the one deployed by one of the usual large operators in the area. The latency leaves it a little beyond 50ms, which is not the most appropriate but I think it is acceptable. Then we see at least that you do not have the same upload and download speed. Knowing this, and that the google test also gives you enough speed in addition to obtaining more favorable results when connecting the devices to another network connection... Try to connect the mac and the chromecast ultra apart from the mobile to perhaps the connection of another neighbor and even someone from another operator if possible. For now we see that you have a somewhat particular ISP, but we will also have to see if your nearby node is saturated with that operator or others (they can share them). The appropriate thing will be to check with those devices on another network and thus be able to tell the company that supplies you internet that with other operators or connection you are doing well, but with theirs it is not, and perhaps thus, being able to suggest that they open certain ports , service priority, disable any annoying service like cgnat, etc. If your operator does not give you any solution... you may have to switch to another operator for the internet connection and be able to use Stadia correctly, but first, as we mentioned, try to check the same hardware on a different network and contact the company. For example, the Digi company puts you Cgnat but for €1 more per month they take it away from you, thus preventing you from sharing the public IP with other users. Personally, I could only comment and give you details about the most important national operators in Spain because I don't have the need and many don't operate in my area... or I directly know that their service would not be well adapted for cloud gaming. As usual, they prioritize what brings them the most customers and normally, netflix brings them more customers than cloud gaming could. As a detail, if you have the opportunity and depending on how long you are going to be in Spain, there are operators that only ask you to stay for 3 months without penalties and for only €25 or even less. Using the Stadia Enhanced browser extension if you have a chance, you can also get more data on how Stadia data is reaching you on each site you connect to.