Nslookup works but ping doesn't

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1

I’m using Manjaro KDE. I don’t know why or when this started happening but I cannot connect to any website. I can ping IP addresses but not hostnames. But nslookup works. The weird thing is, it starts working when I reboot my router through the control panel but stops working if I disconnect and connect again. All other devices connected to the same network work just fine. My /etc/resolv.conf is this:

# Generated by resolvconf
nameserver 192.168.0.1

My /etc/hosts is this:

127.0.0.1       localhost
127.0.1.1       sintan-pc
::1     localhost ip6-localhost ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

EDIT: As I was writing this question, it suddenly started working. I’ll keep this in case it starts happening again soon.
EDIT2: Upon reconnection, when I ping any hostname, the message PING hostname(ip_address) 56(84) bytes of data appears but it takes a while before receiving any replies. But once the replies start coming, it keeps working. Might this be an issue with my router?

2

Does ping asd.org work? Does dig asd.org work? Does dig asd.org @192.168.0.1 work? Does dig asd.org @1.1.1.1 work?

3

All of these currently work, kindly see my edits.

4

Admittedly, the ping feels a lot slower. The response times are as expected, but it takes a while before getting the first reply.
Here’s my output of ip route get 192.168.0.1 if that helps:

192.168.0.1 dev wlo1 src 192.168.0.2 uid 1000
    cache
5

Most probably slow DNS.

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