Hello fellows, As you all know 2.60b patch is a most important patch of ET, Mostly servers works on this patch.
If you never installed any patch in your ET then your ET will be working on 2.55 (you can check it by starting your ET.exe and after opening your console, at the right bottom of the console you will see the name of patch, it will be 2.55).
I'll show you some steps through which, without any problems you will be able to connect to 2.60b servers.
Step 1 - Download 2.60 Patch from Here
2.60 patch is much important for the working in 2.60b patch. ( nearly 5 MB)
Step 2 - Install 2.60 patch, by starting setup wizard of 2.60 patch. You need to chose your ET directory while installing, then finish the installation and your ET will be successfully patched to 2.60.
Step 3 - Now you need to download 2.60b patch from Here
. ( nearly 1 MB)
Step 4 - You need to install 2.60b patch. It is very much easy, use Winrar to extract the compressed pack of 2.60b patch. After extraction open win32 folder, copy ET.exe and ETDED.exe and paste them to your ET directory.
After copying, you are done, your ET is successfully patched to 2.60b patch. Now you can connect to all those servers which runs on 2.60b.
Hope you like it.