To enable pagination in CommunityBuilder, you need to edit the comprofiler.html.php file located at '/components/com_profiler'. Find the following code around line 1542 ('---' separates code here):

---
<th style='text-align:center;'><?php echo _UE_CONNECTION; ?></th>
<th style='text-align:center;'><?php echo _UE_CONNECTIONTYPE; ?></th>
<th style='text-align:center;'><?php echo _UE_CONNECTIONCOMMENT; ?></th>
</tr></thead>
<tbody>
<?php
---

Exactly after '<?php' tag insert this:

---
/*** PREPARE PAGINATION START ***/
// number of connections per page
define('P_CONNECTIONS_PER_PAGE', 4);

global $Itemid, $limitstart, $limit;

// total number of connections
$total = count($connections);

// index of the first displayed connection
$limitstart = $limitstart ? $limitstart : 0;
$limit = $limit ? $limit : P_CONNECTIONS_PER_PAGE;

// modify array to contain only connections for this page
$connections = array_slice($connections, $limitstart, $limit);
/*** PREPARE PAGINATION END ***/
---

Then scroll down till you find the following code (around line 1600 after first edit):

---
echo "\n</tr>";
$i= ($i==1) ? 2 : 1;
}
echo "</tbody>";
echo "</table><br />";
---

After 'echo "</table><br />";' insert this:

---
/*** PAGINATION LINKS START ***/
// include standard Joomla page navigation class
require_once( $GLOBALS['mosConfig_absolute_path'] . '/includes/pageNavigation.php' );

// create the object
$pageNav = new mosPageNav( $total, $limitstart, $limit );

// base link
$link = "index.php?option=com_comprofiler&Itemid=$itemid&task=manageConnections";

// display pagination bar
echo '<center>' . $pageNav->writePagesLinks( $link ) . '</center>';
/*** PAGINATION LINKS END ***/
---

Save the file. Enjoy.