That really is strange. Maybe try wlan.at.debug() before sending those commands - it should give you some idea of whether anything else is being sent back. As far as I know the response should look like:
wlan.at.cmd("ATE0\r\n",1000,console.log);
ATEO
OK
wlan.at.cmd("AT+GMR\r\n",1000,console.log);
VersionNumber
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That really is strange. Maybe try
wlan.at.debug()
before sending those commands - it should give you some idea of whether anything else is being sent back. As far as I know the response should look like: