Reconnect button does nothing.
TL;DR = Patched in safemode (suggested by rioter), enterted a game, everything is fine, when loadscreen is supposed to appear, nothing happens.
Full story = Tried to patch 7.8 today, got error 004 over and over (tried a lot of things, both clients, hextech repair tool with clean uninstall, manual uninstall, restart comp, client, other regions, etc etc etc) Then a Rioter suggested i'd run the computer in safemode
'Start button + R msconfig enter boot - safe boot - network boxes checked'
then i patched the game. Turn off and on again, log in normally, client is patched everything seems fine. Great! enter a game (should have tried custom game first, cpt obvious chill out) and then this happened. Mildly upset.
Help? =) Would like this resolved by tomorrow. 
Edit: Yes, I did try to uninstall and install with Hextech Repair tool after this, did run it as admin, here are the logs.
Starting
Getting LoL install path... Failed
D:\Riot Games\lol.launcher.admin.exe
Getting LoL install path... Failed
D:\Riot Games\LeagueClient.exe
Getting LoL install path... Done
D:\Riot Games
Getting user profile... Done
C:\Users\Kim
Creating the "LoL Logs" folder... Done
Running ping test
Pinging www.google.com [84.208.42.176] with 32 bytes of data:
Reply from 84.208.42.176: bytes=32 time=2ms TTL=60
Reply from 84.208.42.176: bytes=32 time=1ms TTL=60
Reply from 84.208.42.176: bytes=32 time=2ms TTL=60
Reply from 84.208.42.176: bytes=32 time=1ms TTL=60
Ping statistics for 84.208.42.176:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 1ms, Maximum = 2ms, Average = 1ms
Saving results to file... Done
Syncing system clock
Starting Time Sync Service... Systemfeil 5 har oppst†tt.
Ingen tilgang.
Resyncing clock... The following error occurred: Tjenesten er ikke startet. (0x80070426)
Gathering logs
Generating Process List... Done
Generating Network Diagnostic... Done
Generating Graphics Diagnostic... Done
Copying R3D Logs... Failed
Copying Network Logs... Failed
Copying RADS Logs... Done
Copying Launcher Logs... Done
Copying Patcher Logs... Done
Copying Maestro Logs... Failed
Copying Game Configuration... Failed
Copying Persisted Settings Configuration... Done
Setting DNS to automatically assigned
Finding Network Adapters... Done
Ethernet:
Changing to DHCP... Done
Flushing DNS... Done
Reinstalling
Downloading installer... Done
Uninstalling League of Legends... Done
Running installer... Done
Enabling firewall
Done
Adding firewall exceptions
Adding LoL Launcher Firewall Exception... Done
Adding LoL Patcher Firewall Exception... Done
Disabling firewall
Done
Saving task log
Done
Zipping the "LoL Logs" folder
7-Zip (a) [32] 15.14 : Copyright (c) 1999-2015 Igor Pavlov : 2015-12-31
Scanning the drive:
6 folders, 19 files, 4052533 bytes (3958 KiB)
Creating archive: C:\Users\Kim\Desktop\LoL Logs.zip
Items to compress: 25
Files read from disk: 19
Archive size: 237435 bytes (232 KiB)
Everything is Ok
Done