Causes

• This issue can occur if entries in the network-timeout registry have been created using the wrong registry-data type (for example REG_SZ instead of REG_DWORD).

Fixes

Step 1: Use Registry Editor

Use the Registry Editor (regedit), to make sure all entries under HKEY_CURRENT_USER\Software\Google\Google Apps Migration\Other  have the REG_DWORD registry data type.