As suggested by Sanjay in his previous comment, please use below SNMP OIDs to pull the required details.
WLINK RSSI (Signal Strength) : .22.214.171.124.4.1.25053.1.1.15.126.96.36.199.1.11
WLINK Uptime (Connection status): .188.8.131.52.4.1.25053.1.1.15.184.108.40.206.1.10
WLINK Role : .220.127.116.11.4.1.25053.1.1.15.18.104.22.168.1.2
Let us know if that answers your query or you have any further queries.
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