The Patch 1.02 update weighs in at 74MB and will address these connectivity issues as well as fine-tune some of the gameplay mechanics in Multiplayer, add a 'No Party' playlist option to Multiplayer for solo players and change some of the rather controversial phone numbers on a particular bulletin board in the Single Player campaign.

The Last of Us - Patch 1.02 Notes:
Single player
- Texture of a phone number on a bulletin board changed.
Multiplayer
Technical:
- Host migration has been improved. Losing connection to the host during a migration should occur less often.
- General crash when leaving multiplayer fixed.
- Intro camera fix for some introductory cut-scenes.
- Connectivity issues while playing have been tuned.
- If you disconnect or lose connection to the host, you will no longer advance a clan day. You will only advance a day if you are kicked from the match, or exit through the menu.
Gameplay:
- Explosion Expert level 2 should be selectable now.
- The voting time for match selection has been reduced to 15 seconds.
- “No party” playlist options have been added to both Supply Raid and Survivors, players can only join this playlist solo.
- Melee against a downed character now uses the same range as normal melee.
"As you see we made some tweaks to improve various gameplay and technical issues that arose once the game was launched. We’ll be updating and adding additional fixes over the coming months. Keep reporting any issues on our technical forums" ~ Naughty Dog.

Source: Naughty Dog - The Last of Us - Patch 1.02



