Enable "telnet://" in your Internet Explorer.

Just in case you need to enable "telnet://" in your Internet Explorer:

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1.  Add the Registry key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_DISABLE_TELNET_PROTOCOL
2. Create a REG_DWORD (default) entry of name iexplore.exe
3. Set that value to 0 (default).
4. Restart IE

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