I replaced a Linksys WRV54G router with a new Cisco RV 120W router. Only settings I configured are WAN/ISP settings, turned on Wireless with one profile and have a few port forwarding rules (3 RDP, 1 HTTPS and 1 SMTP. I have logging turned off. My clients are reporting the internet speed as very slow since this new router was setup and sometimes no internet at all it seems. I replaced the old router and speed is back to normal until I again put this RV120W back on.
I see several other posts on this same problem, but no fix is posted. Please assist me in this issue as my clients need this fixed soon. Thank you.