Deleted
Deleted Member
Posts: 0
Registered on: January 1970
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Post by Deleted on Dec 28, 2014 12:01:29 GMT
So according to the Destiny and GTA Online subreddits, if you go into your Network settings, set up a new Custom connection by set all options to automatic and then your MTU to 1473, you should be able to sign into and play games using PSN. PSN came back online in my area of Germany within the last hour, but I was still unable to log into GTA Online. I could get into the Store just fine but games were still offline. I tried this MTU setup and now I'm golden. To be fair, it could have just been a result of logging in again after changing those settings and not the setting change itself, but something worked. Now, my question for you guys is - what exactly does the change in MTU do for your settings? I'm not trying to adversely affect your connections, so any insight would be helpful. Thanks guys and hopefully I'll see you all online soon! Source: www.reddit.com/r/gtaonline/comments/2qllz5/still_having_trouble_logging_on_to_psn_try_this/ |
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strikeslip
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Posts: 107 
Registered on: June 2014
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Post by strikeslip on Dec 28, 2014 14:42:53 GMT
MTU stands for Maximum Transmission Unit, and has to do with the size of data packets... header, footer, body.
Back around the year 2002, I had to adjust the MTU at any businesses using Bell ADSL and Linksys routers from 1500 to 1492.
I don't know why for sure, but it seemed that Bell's service stopped liking the larger MTU, and it caused big problems. I'm no expert. I don't know why this would help with getting into PSN unless the smaller packet size helps to squeeze in before the ddos packets, or packets of other users.
I'd be interested to see a reply by someone who knows what they're talking about on this. I won't be adjusting my MTU.
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Deleted
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Registered on: January 1970
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Post by Deleted on Dec 28, 2014 15:54:42 GMT
Thanks for the info. I don't see how MTU would be relevant either, but it's fixed the problem for a lot of people so far. It also seems like most of PSN is back to normal at this point, so this option may not be necessary or helpful anymore.
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Pardonias
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Posts: 138
Registered on: December 2014
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Post by Pardonias on Dec 30, 2014 10:28:22 GMT
This did the trick for me as well.
From what I understand, the MTU setting determines the maximum size of transmitted packages. Usually, you want to set it as high as possible in order to maximise the ratio of transmitted bytes and number of packages. There is a limit though which depends on protocol, header size, etc. If you exceed this limit, every package needs to be fragmented into pieces so as to assert that each fragment is smaller than that limit. Effectively, this almost doubles the number of transmitted fragments and is even worse if you consider packet loss, so you'd generally want to avoid this. Whether this limit is 1473, 1492 or something else, I don't know, but 1473 is obviously more likely to avoid fragmentation than 1500.
I can't tell why this would affect the accessibility of the PSN – perhaps, the fragmentation causes a lot of overhead on the servers.
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