Can I safely login to my router via Wi-Fi?
Does logging into the router via Wi-Fi cause any damage?
Should i avoid that?
You wouldn’t do any physical damage to the router, but if you attempted to update firmware over a wifi connection, you might screw up the configuration. This applies to non-Apple networking equipment.
Security-wise, it would depend on the level of encryption on the connection between the device and the equipment, and whether or not the password is transmitted in clear text.
I’ll admit I do it, but I use an iPhone or an iPad and the equipment is a TimeCapsule, AirPort Extreme, or airport base station. Administration of Apple networking gear over Wifi is safe.
You have to use a specific software application to do this…The Apple Airport utility.
Other routers will allow you to make a connection over http using a web browser. Keeping this in mind, if the router OEM states specifically that you should not, then it’s probably safe to say that there is little or no encryption in the connection where the password is transmitted.
It is probably in clear text.
Knowing this, if there happens to be a lurker with the ability to analyze the packet transmission of devices looking to make an administrative connection for the first time or when the router admin password is blank or made public in documentation, you could be the victim of network comprimisiation, and a joker would have no problem configuring your own equipment that locks you out…forcing you to complete a hard reset of the gear before you wouldn’t be able to gain control of it again.