As I have been reading here, there has been plenty of people running into the firewall/retry error for weeks/months, maybe even longer? Not sure, however I did experience the same issue and it all came down to ports.
I did everything I could think of, including disabling firewall on pc and modem/router and uninstalling several programs that might conflict, reinstalled the game etc and it all came down to a port not being forwarded correctly. Now the only way I found out was through searching online etc and I just so happen to run into a LoL support link where I found via google and it directed me to another website which told me what ports are forwarded correctly and what isnt, so it told me and I fixed it and I am on perfectly.
(Please Note: This might not work for all, but its worth a try, you have nothing to lose.)
- Go to: https://support.leagueoflegends.com/...ort-forwarding
- leave it open, you will need the info on the website
- Go to: http://www.firebind.com/lol.php
- Just make sure LoL is selected (at the bottom of the page there is a list of games, click on LoL)
- Click on the blue link that says "Click here to start the League of Legends Network Path Test"
-- NOTE: You must have JAVA installed and you must allow the program to "RUN" when it asks for permission (to get java or the latest version, go to www.java.com -- free install/update)
- It takes you to a new page after you have given permission to run the scan, and then it does a scan of your ports. It will tell you what is enabled and disabled and whats blocking your connection.
Once a scan is finished, you will be given the result and then you can determine what port is blocked.
Now going back to the LoL website, if you have any ports blocked then you need to forward them and the LoL support team have put together an excellent guide on how to do it and if u want more just google it or even post here, ill see if i can help you, because believe ME I know how painful this error is.
Also, if you use Skype you need to make sure your connections are allowed:
- Login to Skype > Go to Tools > Options > Advanced > Connection > Make sure "use port 40 and 883...." is TICKED > Make sure "Enable uPnP" is TICKED > Save & Re-Login to skype
Sorry might seem like alot to read, but i thought it can help someone whos experiencing this issue.
PS: Another possible fix: If all ports are correct and if by any chance you have a program called "Hotspot Shield" installed then that could cause be the issue... uninstall it and try again.
Thanks for reading.